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ARKANSAS AGRICULTURAL EXPERIMENT STATION Division of Agriculture University of Arkansas March1999 Research Series 462 R.E. Talbert, F.L. Baldwin, D. Gealy, E. Webster, T. Dillon, L. Schmidt, J. Rutledge, C. Wheeler, and L. Estorninos H ERBICIDE E VALUATION IN A RKANSAS R ICE ,1997 '97

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ARKANSAS AGRICULTURAL EXPERIMENT STATIONDivision of Agriculture University of ArkansasMarch 1999 Research Series 462

R.E. Talbert, F.L. Baldwin,D. Gealy, E. Webster, T. Dillon,L. Schmidt, J. Rutledge,C. Wheeler, andL. Estorninos

HERBICIDE

EVALUATION

IN ARKANSAS

RICE, 1997

'97

Arkansas Agricultural Experiment Station, University of Arkansas Division of Agriculture, Fayetteville. Milo J. Shult, VicePresident for Agriculture and Director; Charles J. Scifres, Associate Vice President for Agriculture. PS1.20399.The ArkansasAgricultural Experiment Station follows a nondiscriminatory policy in programs and employment.

ISSN:0099-5010 CODEN:AKAMA6

Editing and cover design by Karen Eskew

HERBICIDE EVALUATION INARKANSAS RICE, 1997

Ron Talbert Ford BaldwinUniversity Professor Extension Weed Scientist

Department of Crop, Soil, and Cooperative Extension ServiceEnvironmental SciencesUniversity of Arkansas Eric Webster

Extension Weed ScientistDavid Gealy Southeast Research and

USDA-ARS, Plant Physiologist Extension CenterNational Rice Gerplasm Evaluation

and Enhancement Center Lance SchmidtResearch Assistant

Tomilea Dillon Department of Crop, Soil, andAssistant Specialist Environmental Sciences

Cooperative Extention Service University of Arkansas

Jeff Rutledge Celeste WheelerGraduate Assistant Research Technician

Department of Crop, Soil, and Cooperative Extension ServiceEnvironmental SciencesUniversity of Arkansas

Leopoldo Estorninos, Jr.Graduate Assistant

Department of Crop, Soil, andEnvironmental SciencesUniversity of Arkansas

Arkansas Agricultural Experiment StationFayetteville, Arkansas 72701

AAES RESEARCH SERIES 462

4

SUMMARY

CONTENTSPage

Introduction .................................................................................. 7Methods ........................................................................................ 8Abbreviations ................................................................................ 8Tables ....................................................................................... 9

V-10029 in Weed Control Programs in Southern Rice, Stuttgart.............. 9Evaluation of Clomazone (Command) 3ME and 3G in Rice, Stuttgart ...... 18Thiobencarb (Bolero) Tank Mixes and Sequential Weed Control Programs

in Drill-Seeded Rice, Stuttgart ................................................. 21Reduced Rate DPRE Combinations for Barnyardgrass Control, Stuttgart ... 24

Injury to Rice and Weed Control With Triclopyr (Grandstand) in Rice atThree Application Timings, Stuttgart ......................................... 27

Nutsedge Control with Halosulfuron (Permit) in Rice, Stuttgart .............. 31Weed Control with Propanil Formulations in EPOST Programs, Stuttgart .. 33Comparison of Microencapsulated Formulations of Pendimethalin (Prowl)

for Weed Control in Rice, Stuttgart ........................................... 43Yield Study for Halosulfuron in Rice, Stuttgart .................................. 45Evaluation of F8426 applied EPOST to Water-Seeded Rice at Two

Flood Depths, Stuttgart .......................................................... 47Evaluation of F8426 40 EDF Alone and in Combination With

Various Herbicides, Stuttgart ................................................... 49Weed Control with Quinclorac (Facet) Formulations (Granule and Dry

Flowable) at Various Timings and Suitability of Pendimethalin as aQuinclorac Partner for Weed Control in Rice, Stuttgart ................... 51

Susceptibility of Red Rice Biotypes to Imazethapyr (Pursuit) in FieldStudies, Stuttgart .................................................................. 55

Influence of Flooding on the Performance of Herbicides and Growth ofRice and Red Rice, Stuttgart .................................................... 58

Effect of Soybean Herbicides on Strawhull and Blackhull Red RiceBiotypes in Field Studies, Stuttgart ............................................ 60

Weed control is economically important for production of rice, a major crop inArkansas. These findings summarize efforts of the team of Arkansas scientists workingon weed control strategies for rice during 1997. Various technologies were evaluated infield studies at five locations involving the major weed problems and rice productionsystems used in the state. Results from these studies will add to the arsenal of weedcontrol options for producers. Highlights include synergists and safeners for herbicidesto aid in control of propanil-resistant barnyardgrass; herbicides and flooding techniquesfor control of red rice and other weeds; and the use of transgenic rice cultivars for broad-spectrum weed control. The preliminary results reported here generally warrant furthertesting for more advanced findings and for the labeling of new technologies, and finallyare the basis for updating safe, effective, and economical recommendations to Arkansasrice producers.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

5

Susceptibility of Red Rice Biotypes and Glufosinate (Liberty)-ResistantRiceto Postemergence Applications of Glufosinate in Field Studies,Stuttgart ............................................................................. 63

Red Rice Control in IMI-Tolerant Rice, Rohwer ................................. 66Evaluation of Post-Flood Application Timings of Triclopyr (Grandstand)

Following Fenoxaprop (Whip), Rohwer ...................................... 69Evaluation of Triclopyr (Grandstand) and Bensulfuron (Londax) for Rice

Weed Control, Rohwer ........................................................... 72Annual Grass Control in Rice, Rohwer ............................................. 75Pendimethalin (Prowl) Combinations for Weed Control in Rice, Rohwer .. 78Evaluation of Clomazone (Command) Application Timings and Rates,

Rohwer .............................................................................. 80Evaluation of Clomazone 3ME vs. 3G for Weed Control in Rice, Rohwer . 82Evaluation of Quinclorac (Facet) Formulations for Grass Control in Rice,

Rohwer .............................................................................. 85Evaluation of F-8426 for Rice Weed Control, Rohwer.......................... 87Evaluation of Rice Weed Control Programs Containing Thiobencarb

(Bolero), Rohwer .................................................................. 90Evaluation of V-10029 for Weed Control in Rice, Rohwer .................... 92Preemergence Weed Control in Rice, Rohwer .................................... 95Thiobencarb (Bolero) for Weed Control in Rice, Rohwer ...................... 98Clomazone (Command) Injury on Rice (Rolled vs. Not Rolled Seedbed),

Lonoke .............................................................................. 100Clomazone (Command 3 ME) and Quinclorac (Facet) Levee Control,

Lonoke .............................................................................. 102Clomazone (Command) in Rice, Lonoke .......................................... 105IMI-Tolerant Rice, Lonoke ........................................................... 108IMI-Tolerant Rice, Stuttgart .......................................................... 114Fenoxaprop Safener, Lonoke ......................................................... 120Quinclorac (Facet) Granules, Lonoke .............................................. 123Halosulfuron (Permit) in Rice, Lonoke ............................................. 128Annual Grass Control in Rice With V-10029 Programs, Lonoke ............. 131Broadleaf and Grass Control in Rice With V-10029 Programs, Lonoke ..... 134Thiobencarb (Bolero) for Aquatic Weed Control on Fallow Ground,

Lonoke .............................................................................. 142Thiobencarb (Bolero) for Weed Control in Rice, Lonoke ...................... 145Pendimethalin (Pentagon and Prowl) for Weed Control in Rice, Lonoke ... 148Preflood Weed Control in Rice, Lonoke ........................................... 151Propanil (Super Wham) in Rice, Lonoke .......................................... 154Propanil Synergists, Lonoke .......................................................... 157Early Postemergence Weed Control in Rice, Lonoke ........................... 160Broadleaf Weed Control in Rice, Lonoke .......................................... 164Yellow Nutsedge Control in Rice, Lodge Corner ................................ 174Potential Synergistic Effects of Herbicides and Insecticides with Propanil,

(seven experiments), Fayetteville .............................................. 178

Appendix Tables ............................................................................. 186(Plant names, herbicide names, and climatological data)

AAES RESEARCH SERIES 462

6

ACKNOWLEDGMENTS

The authors acknowledge the Arkansas Rice Research and Promotion Board forfinancial support for some of these experiments. The following companies also providedfinancial support and chemicals used in the studies: AgrEvo, BASF, Cedar, Cyanamid,DowElanco, DuPont, FMC, Helena, Monsanto, Rhone-Poulenc, Rohm & Haas, Terra,UAP, Valent, and Zeneca.

The assistance of the following individuals is gratefully acknowledged: HowardBlack, Biological Technician, National Rice Germplasm Evaluation and EnhancementCenter; Mike Dillon, Research Technician, Lonoke; Troy Dillon, Research Technician,Lonoke; Larry Earnest, Superintendent, Southeast Branch Station, Rohwer; Bill Fox,Research Specialist, Rice Research and Extension Center, Stuttgart; John Robinson, Di-rector, Rice Research and Extension Center, Stuttgart; Vaughn Skinner, Farm Manager,Arkansas Agricultural Research and Extention Center, Fayetteville; Randy Spurlock, Re-search Technician, Rohwer; Jennifer Wells, Graduate Assistant, Arkansas AgriculturalResearch and Extension Center, Fayetteville; Marilyn McClelland, Research Associate,Arkansas Agrcultural Research and Extension Center, Fayetteville (editing and compila-tion); and Marci Milus and Joyce Booth, secretarial staff.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

7

HERBICIDE EVALUATION INARKANSAS RICE, 1997

Ron Talbert, Ford Baldwin, David Gealy, Eric Webster, Tomilea Dillon, LanceSchmidt, Jeff Rutledge, Celeste Wheeler, and Leopoldo Estorninos, Jr.

INTRODUCTION

Herbicidal weed control is economically important for production of rice. Fieldexperiments are conducted annually in Arkansas to evaluate the activity of de-velopmental and commercial herbicides for selective control of weeds in rice.

These experiments serve both industry and Arkansas agriculture by providing informa-tion on the selectivity of herbicides still in the developmental stage and by comparing theactivity of these new herbicides with that of recommended herbicides.

The research reported herein is a compilation of data from experiments conducted byfour of the state’s agronomic researchers responsible for weed control in rice. Ron Talbert,located at the Arkansas Agricultural Research and Extension Center, Fayetteville, con-ducts research at Fayetteville, at the Rice Research and Extension Center, Stuttgart, andat the Lonoke location of the University of Arkansas at Pine Bluff. David Gealy islocated at the National Rice Germplasm Evaluation and Enhancement Center at Stuttgart.Ford Baldwin’s rice research is located primarily at the Lonoke location of the Universityof Arkansas at Pine Bluff. Eric Webster, while he was located at the Southeast Researchand Extension Center at Monticello, conducted rice research at the Southeast BranchExperiment Station at Rohwer.

Common names of the herbicides presented in data tables are referenced to tradenames and sponsoring companies in Appendix Table 1. The scientific names of the plantsevaluated and their associated Bayer codes are listed in Appendix Table 2. Climatologicaldata for 1997 are presented in Appendix Table 3.

AAES RESEARCH SERIES 462

8

METHODS

Pertinent information specific to each field test precedes each data table. Included isinformation on general field conditions, field maintenance and herbicide application, andgeneral conclusions from the data. All test areas were fertilized as recommended fromsoil tests.

The herbicides used in these studies are designated in the tables by the commonname proposed to or accepted by the Weed Science Society of America or, when com-mon names are unavailable, by code number designation. A trade name is specified forcompounds having more than one trade name or manufacturer. The Stam® formulationwas used where propanil formulation is not designated. Herbicides formulated as pre-packaged mixtures are listed in tables by their component herbicides in parentheses. Allherbicide rates are expressed in pounds of active ingredient (lb/A) on a broadcast basis.Adjuvant rates are expressed as percent volume/volume.

Effects of the herbicide treatments were evaluated by weed control ratings, cropinjury ratings, crop yields, and crop stand counts. Percentages of weed control and cropinjury were visually estimated: 0% represents no effect, and 100% represents completekill. Rice yield is reported as lb/A; 1 bushel = 45 pounds. Data were subjected to analysisof variance, and the LSD (Least Significant Difference) test at the 5% level of signifi-cance was used for separation of means.

ABBREVIATIONS OF TERMS

The following abbreviations are used in tables:

BF, before flood MPOST, mid-postemergence timingBkPkCO2, CO2 backpack sprayer N/A, not applicable or not availableCot., cotyledon Noz, nozzlesDAT, days after treatment NS, not significantDF or EDF, dry flowable PI, panicle initiationDPF, days prior to flood POFL, after floodDPRE, delayed preemergence POST, postemergenceEC, emulsifiable concentrate PPI, preplant incorporatedEPOST, early postemergence PRE, preemergencefb, followed by PREFL, before floodFF, flat fan nozzle RCB, randomized complete blockGpa, gallons per acre (experimental design)G or GR, granular formulation R-ECHCG, propanil-resistant barnyardgrasslf, leaf Till, tilleringLPOST, late postemergence UAPB, University of Arkansas at Pine BluffLSD, least significant difference WAF, weeks after floodME, microencapsulated XR, extended range nozzleMP-44, annual weed control recommenda-

tions for Arkansas

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

9

Tab

le 1

. V-1

0029 in

wee

d co

ntr

ol p

rogr

ams

in s

outh

ern r

ice,

Stu

ttga

rt.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te................................................

....

May

12,

199

7E

xper

imen

tal D

esig

n /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

............................................

Sep

tem

ber

11, 1

997

Plo

t si

ze......................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..................................................

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................7

in /

9 row

sD

ate

of F

lush

ing

................................

May

20

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

...................................................

June

19, 1

997

% O

M /

pH

..............

..................................................

......

1.3

/ 5.

5

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; MPO

ST =

mid

-pos

tem

erge

nce

; EPO

FL

= ea

rly

pos

t-flo

od a

nd P

OFL

= pos

t-flo

od.

App

licat

ion typ

eD

PR

EE

PO

ST

MPO

ST

LPO

ST

EPO

FL

PO

FL

Dat

e ap

plie

dM

ay 1

6, 1

997

June

3, 1

997

June

10, 1

997

June

18, 1

997

June

23, 1

997

July

8, 1

997

Tim

e6:

00 p

m5:

00 p

m6:

00 p

m5:

00 p

m9:

30 a

m1:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)74

/ 7

877

/ 8

168

/ 7

586

/ 8

887

/ 8

486

/ 8

4R

elat

ive

hum

idity

(%)

6589

7565

8081

Win

d (m

ph, d

irec

tion)

13

42

24

Wea

ther

clea

rpa

rtly

clo

udy

clou

dym

ostly

cle

arcl

ear

part

ly c

loudy

Soi

l moi

sture

moi

stm

oist

moi

stm

oist

flood

edflo

oded

Cro

p st

age/

Hei

ght

N/A

2-3

lf/ 5

"3-

4 lf

/ 7"

4-5

lf /

9"5-

6 lf

/ 14

"9

lf - 2

tille

r /

23"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

002

Teej

et /

XR

1100

2Te

ejet

/ X

R11

002

Teej

et /

XR

1100

2Te

ejet

/ X

R11

002

Teej

et /

XR

1100

2B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

815

/ 2

815

/ 2

815

/ 2

815

/ 2

8

AAES RESEARCH SERIES 462

10

DPR

EE

PO

ST

MPO

ST

LPO

ST

EPO

FL

PO

FL

Wee

d s

pec

ies

(pop

ula

tion

)(h

eigh

t /

# le

aves

)R

-EC

HC

GN/

A2-

3 lf

/ 1"

3-4

lf /

1.5"

4-5

lf /

3.5"

7-8

lf-2

tille

rs /

11"

9-10

lf-2

tille

rs /

16"

EC

HC

GN/

A2-

3 lf

/ 1"

3-4

lf /

1.5"

4-5

lf /

3.5"

7-8

lf-2

tille

rs /

11"

9-10

lf-2

tille

rs /

15"

SE

BE

XN/

A2

lf /

3.5"

4 lf

/ 4"

5 lf

/ 5"

5-7

lf /

9"12

lf /

25"

PO

RO

LN/

A4

lf /

0.25

"5

lf /

1.25

"7

lf /

1.6"

15-2

0 lf

/ 3-

5"18

-20

lf /

4-6"

BR

APP

N/A

2-3

lf /

0.75

"3-

4 lf

/ 1.

5"4-

5 lf

/ 2.

5"9

lf-2

tille

rs /

7"

10 lf

-2 ti

llers

/ 1

2"C

YPIR

N/A

N/A

spik

e /

0.5"

2-4

lf /

2.4"

4-5

lf /

6"5-

6 lf

/ 10

"C

oncl

usi

ons:

V-1

0029 a

t 0.0

2 lb

/A a

pplie

d to

5-lea

f ric

e an

d g

rass

(LPO

ST) w

as v

ery

effe

ctiv

e in

con

trol

ling

pro

pan

il-re

sist

ant an

d -

susc

eptible

bar

nya

rdgr

ass

and

hem

p se

sban

ia. A

n a

pplic

atio

n o

f thio

benca

rb a

t 3.

0 lb

/A, D

PRE

, or

2.0

lb/A

of t

hio

benca

rb p

lus

3.0

lb/A

of p

ropa

nil

appl

ied

post

emer

gence

to

2- to

3-lf

gras

sfo

llow

ed b

y V

-100

29 a

pplie

d to

4- to

5-lea

f ric

e al

so p

rovi

ded

exce

llent co

ntr

ol o

f the

wee

d sp

ecie

s lis

ted

abov

e. O

ther

tre

atm

ents

pro

vidi

ng

exce

llent co

ntr

ol o

f the

wee

d sp

ecie

s pr

esen

t w

ere

V-1

0029

at 0.

02 lb

/A a

pplie

d to

4- to

5-lf r

ice

follo

wed

by

0.28

lb/A

of t

ricl

opyr

app

lied

post

-flo

od a

nd

LGC

-408

63 a

t 0.

027

or 0

.053

lb/A

appl

ied

to 4

- to

5-lf r

ice.

No

sign

ifica

nt di

ffere

nce

s in

yie

lds

wer

e ob

serv

ed a

mon

g tr

eatm

ents

.

Tab

le 1

. Sec

tion

1.

Wee

d co

ntr

olApp

licat

ion

Res

ista

nt ba

rnya

rdgr

ass

(R-E

CH

CG

)B

arnya

rdgr

ass

(EC

HC

G)

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

46/

106/

186/

237/

17/

157/

29(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

00

00

V-1

0029

+0.

02K

inet

ic (0

.25%

)LPO

ST

5510

093

9358

100

9393

(Pro

panil

+ m

olin

ate)

6.0

LPO

ST

6310

094

9885

100

100

96V

-100

29 +

Kin

etic

0.02

(0.2

5%

) fb

MPO

ST

tric

lopy

r0.

28PO

FL

5389

9893

9453

8310

098

99(P

ropa

nil

+ m

olin

ate)

4.5

MPO

ST

fb tr

iclo

pyr

0.28

PO

FL

6598

100

9490

6098

100

9693

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

11

Tab

le 1

. Sec

tion

1.

Con

tinued

.W

eed

contr

olApp

licat

ion

Res

ista

nt ba

rnya

rdgr

ass

(R-E

CH

CG

)B

arnya

rdgr

ass

(EC

HC

G)

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

46/

106/

186/

237/

17/

157/

29(lb

/A)

(%)

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

MPO

ST

9495

100

9910

096

9888

9510

099

100

9695

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il (S

tam

)4.

0M

PO

ST

9595

100

9910

094

9389

9510

099

100

9696

Thio

benca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

MPO

ST

8589

9810

010

096

9983

8698

100

100

9596

Thio

benca

rb fb

3.0

DPR

E(p

ropa

nil

+m

olin

ate)

4.5

MPO

ST

8088

9410

098

9393

7084

9398

100

9699

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

MPO

ST

8010

010

010

096

9889

100

100

100

9698

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

thio

benca

rb +

2.0

prop

anil

(Sta

m)

3.0

MPO

ST

8310

010

010

099

9891

100

100

100

100

98Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.04

Kin

etic

(0.2

5%)

MPO

ST

9498

100

100

100

9698

8996

100

100

100

9696

Pendi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n +

0.04

prop

anil

(Sta

m)

3.0

MPO

ST

9596

100

100

100

9698

9196

100

100

100

9698

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.04

Kin

etic

(0.2

5%)

EPO

FL

9696

9910

010

095

9490

9899

100

100

9596

conti

nued

AAES RESEARCH SERIES 462

12

Tab

le 1

. Sec

tion

1.

Con

tinued

.W

eed

contr

olApp

licat

ion

Res

ista

nt ba

rnya

rdgr

ass

(R-E

CH

CG

)B

arnya

rdgr

ass

(EC

HC

G)

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

46/

106/

186/

237/

17/

157/

29(lb

/A)

(%)

Pendi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n0.

04E

PO

FL

9398

9999

9893

9090

9899

9998

9393

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

EPO

FL

9498

9810

010

096

9893

9498

100

100

9899

Pendi

met

hal

in fb

1.0

DPR

Em

olin

ate

4.0

EPO

FL

9696

9910

010

096

9691

9499

100

100

9695

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

PO

FL

9495

100

100

100

9695

9396

100

100

100

9596

Pendi

met

hal

in fb

1.0

DPR

Em

olin

ate

fb4.

0E

PO

FL

tric

lopy

r0.

28PO

FL

9698

100

100

100

9698

9396

100

100

100

9896

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

V-1

0029

+0.

02th

iobe

nca

rb2.

0M

PO

ST

8810

010

010

096

9890

100

100

100

9899

LGC

-408

630.

027

LPO

ST

5585

9198

5388

9194

LGC

-408

630.

053

LPO

ST

5889

9599

5895

9898

LSD

(0.0

5)

67

47

34

59

55

63

44

conti

nued

Tab

le 1

. Sec

tion

2.

Wee

d co

ntr

olC

omm

on p

urs

lane

Ric

e fla

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)PO

RO

LC

YPIR

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

106/

186/

236/

186/

23(lb

/A)

(

%)

Untr

eate

d ch

eck

00

00

00

00

00

00

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

13

Tab

le 1

. Sec

tion

2.

Wee

d co

ntr

olC

omm

on p

urs

lane

Ric

e fla

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)PO

RO

LC

YPIR

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

106/

186/

236/

186/

23(lb

/A)

(

%)

V-1

0029

+0.

02K

inet

ic (0

.25%

)LPO

ST

5510

098

9971

73(P

ropa

nil

+ m

olin

ate)

6.0

LPO

ST

9510

096

9998

96V

-100

29 +

Kin

etic

0.02

(0.2

5%

) fb

MPO

ST

tric

lopy

r0.

28PO

FL

6589

100

9899

9599

3898

(Pro

panil

+ m

olin

ate)

4.5

MPO

ST

fb tr

iclo

pyr

0.28

PO

FL

6679

5386

9178

9439

41Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

MPO

ST

1921

7999

9894

9891

9896

100

98Pe

ndi

met

hal

in fb

1.0

DPR

Epr

opan

il (S

tam

)4.

0M

PO

ST

2319

9898

100

9598

9199

9995

95Th

iobe

nca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

MPO

ST

3520

8010

010

095

9890

9610

098

98Th

iobe

nca

rb fb

3.0

DPR

E(p

ropa

nil

+m

olin

ate)

4.5

MPO

ST

2315

7675

9444

3189

9394

8693

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

MPO

ST

9510

010

010

086

8896

100

9810

099

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

thio

benca

rb +

2.0

prop

anil

(Sta

m)

3.0

MPO

ST

9510

010

010

099

100

9510

010

010

010

0

conti

nued

AAES RESEARCH SERIES 462

14

Tab

le 1

. Sec

tion

2. C

onti

nued

.W

eed

contr

olC

omm

on p

urs

lane

Ric

e fla

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)PO

RO

LC

YPIR

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

106/

186/

236/

186/

23(lb

/A)

(

%)

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.04

Kin

etic

(0.2

5%)

MPO

ST

3434

8999

100

9899

8999

9910

010

0Pe

ndi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n +

0.04

prop

anil

(Sta

m)

3.0

MPO

ST

2424

100

100

100

9899

9410

010

010

010

0Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.04

Kin

etic

(0.2

5%)

EPO

FL

2823

2333

100

9699

9392

9573

64Pe

ndi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n0.

04E

PO

FL

3321

2171

100

9698

8495

9174

83Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

EPO

FL

3324

2325

100

9810

089

9598

7094

Pendi

met

hal

in fb

1.0

DPR

Em

olin

ate

4.0

EPO

FL

2919

2338

280

085

9695

5056

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

PO

FL

2518

1818

1375

9895

9810

080

90Pe

ndi

met

hal

in fb

1.0

DPR

Em

olin

ate

fb4.

0E

PO

FL

tric

lopy

r0.

28PO

FL

2624

3336

2875

9886

9398

7686

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

V-1

0029

+0.

02th

iobe

nca

rb2.

0M

PO

ST

9510

010

010

096

9895

100

100

100

100

LGC

-408

630.

027

LPO

ST

5095

9598

8875

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

15

Tab

le 1

. Sec

tion

2. C

onti

nued

.W

eed

contr

olC

omm

on p

urs

lane

Ric

e fla

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)PO

RO

LC

YPIR

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

157/

296/

106/

186/

236/

186/

23(lb

/A)

(

%)

LGC

-408

630.

053

LPO

ST

5899

9998

8668

LSD

(0.0

5)

149

1212

56

86

57

1617

conti

nued

Tab

le 1

. Sec

tion

3.

App

licat

ion

R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

15yi

eld

(lb/A

)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

5719

V-1

0029

+0.

02K

inet

ic (0

.25%

)LPO

ST

189

074

61(P

ropa

nil

+ m

olin

ate)

6.0

LPO

ST

103

071

15V

-100

29 +

Kin

etic

0.02

(0.2

5%

) fb

MPO

ST

tric

lopy

r0.

28PO

FL

58

80

7234

(Pro

panil

+ m

olin

ate)

4.5

MPO

ST

fb tr

iclo

pyr

0.28

PO

FL

310

50

6942

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

MPO

ST

119

513

110

7011

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il (S

tam

)4.

0M

PO

ST

63

98

10

6798

Thio

benca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

MPO

ST

93

108

40

7279

Thio

benca

rb fb

3.0

DPR

E(p

ropa

nil

+m

olin

ate)

4.5

MPO

ST

51

110

10

6699

conti

nued

AAES RESEARCH SERIES 462

16

Tab

le 1

. Sec

tion

3.

App

licat

ion

R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

15yi

eld

(lb/A

)

(%)

(lb/A

)

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

MPO

ST

1413

1110

071

30Th

iobe

nca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

thio

benca

rb +

2.0

prop

anil

(Sta

m)

3.0

MPO

ST

1515

90

071

05Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.04

Kin

etic

(0.2

5%)

MPO

ST

139

1014

110

6842

Pendi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n +

0.04

prop

anil

(Sta

m)

3.0

MPO

ST

104

54

60

6959

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.04

Kin

etic

(0.2

5%)

EPO

FL

94

66

2314

6685

Pendi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n0.

04E

PO

FL

33

43

30

7204

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

EPO

FL

94

13

2311

6947

Pendi

met

hal

in fb

1.0

DPR

Em

olin

ate

4.0

EPO

FL

85

15

46

6873

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

PO

FL

105

10

40

6921

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

17

Tab

le 1

. Sec

tion

3. C

onti

nued

.App

licat

ion

R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

46/

106/

186/

237/

17/

15yi

eld

(lb/A

)

(%)

(lb/A

)

Pendi

met

hal

in fb

1.0

DPR

Em

olin

ate

fb4.

0E

PO

FL

tric

lopy

r0.

28PO

FL

98

16

610

7104

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

V-1

0029

+0.

02th

iobe

nca

rb2.

0M

PO

ST

1513

93

072

62LG

C-4

0863

0.02

7LPO

ST

1511

070

51LG

C-4

0863

0.05

3LPO

ST

149

071

05

LSD

(0.0

5)

53

45

72

NS

AAES RESEARCH SERIES 462

18

Tab

le 2

. Eva

luat

ion o

f cl

omaz

one

(Com

man

d) 3

ME a

nd

3G

in r

ice,

Stu

ttga

rt.

TEST INFO

RM

ATIO

N

Loca

tion

..........................................................................

......

Stu

ttga

rtPl

antin

g da

te..................................................

............

May

8, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

................................................... S

epte

mbe

r 10

, 199

7Plo

t si

ze......................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..........................................................

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot..................................... 7

in /

9 row

sD

ate

of F

lush

ing

......................................

May

17,

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

..........................................................

June

16, 1

997

% O

M /

pH

..............

..................................................

......

1.3

/ 5.

5

Com

men

ts: PPI =

pre

pla

nt in

corp

orat

ed; P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; and E

PO

ST =

ear

ly p

oste

mer

gence

.App

licat

ion typ

ePPI

PR

ED

PR

EE

PO

ST

Dat

e ap

plie

dM

ay 8

, 199

7M

ay 8

, 199

7M

ay 1

3, 1

997

May

28,

199

7Ti

me

11:3

0 am

4:00

pm

6:30

pm

3:00

pm

Inco

rpor

atio

n e

quip

men

tTr

iple

-KN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)79

/ 7

285

/ 7

675

/ 7

671

/ 7

7R

elat

ive

hum

idity

(%)

7881

6278

Win

d (m

ph, d

irec

tion)

54

34

Wea

ther

clou

dycl

oudy

clea

rcl

oudy

Soi

l moi

sture

moi

stm

oist

moi

stw

etC

rop

stag

e/H

eigh

tN/

AN/

AN/

A2-

3 lf

/ 0.

5"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15Te

ejet

/ X

R11

0015

Teej

et /

XR

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

815

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)E

CH

CG

N/A

N/A

N/A

2-3

lf /

0.5"

R-E

CH

CG

N/A

N/A

N/A

2-3

lf /

0.75

"B

RA

PP

N/A

N/A

N/A

2-3

lf /

0.5"

Con

clusi

ons:

Exc

elle

nt co

ntr

ol o

f res

ista

nt-

and

susc

eptibl

e-ba

rnya

rdgr

ass

and

broa

dlea

f sig

nal

gras

s w

as o

btai

ned

with a

ll tr

eatm

ents

(>93

%) a

t th

e la

test

rat

ing

date

. Com

man

d tr

eatm

ents

app

lied

PPI a

nd

PRE

res

ulted

in in

crea

sed

chlo

rosi

s, s

tand

redu

ctio

n a

nd

stunting

with r

espe

ct to

rate

s ap

plie

d. T

his

incr

ease

d in

jury

,how

ever

, did

not

sig

nifi

cantly

affe

ct y

ield

s. P

row

l alo

ne

appl

ied

DPR

E w

as the

only

tre

atm

ent w

hic

h y

ield

ed lo

wer

than

the

untr

eate

d ch

eck.

Com

man

d at

0.3

lb/A

PPI h

ad s

ignifi

cantly

hig

her

yie

ld than

the

untr

eate

d ch

eck.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

19

Tab

le 2

. Sec

tion

1.

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Bro

adle

af s

ignal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

46/

187/

16/

46/

187/

16/

46/

187/

1(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

0C

lom

azon

e (3

ME

)0.

2PR

E94

9496

9595

9696

9596

Clo

maz

one

(3M

E)

0.3

PR

E95

9598

9595

9898

9598

Clo

maz

one

(3M

E)

0.4

PR

E95

9597

9595

9796

9597

Clo

maz

one

(3M

E)

0.5

PR

E95

9398

9594

9893

9498

Clo

maz

one

(3M

E)

0.6

PR

E95

9596

9595

9696

9596

Clo

maz

one

(3G

)0.

4PR

E95

9596

9495

9695

9596

Clo

maz

one

(3G

)0.

5PR

E95

9596

9595

9695

9596

Clo

maz

one

(3G

)0.

6PR

E95

9598

9595

9895

9598

Clo

maz

one

(3M

E)

0.2

DPR

E93

9495

9395

9591

9496

Clo

maz

one

(3M

E)

0.3

DPR

E95

9598

9595

9896

9598

Clo

maz

one

(3M

E)

0.4

DPR

E95

9698

9596

9895

9698

Clo

maz

one

(3M

E)

0.5

DPR

E95

9598

9596

9896

9698

Clo

maz

one

(3M

E)

0.6

DPR

E95

9697

9596

9799

9697

Clo

maz

one

(3G

)0.

4D

PR

E95

9698

9396

9893

9698

Clo

maz

one

(3G

)0.

5D

PR

E93

9596

9195

9683

9596

Clo

maz

one

(3G

)0.

6D

PR

E94

9696

9396

9695

9696

Quin

clor

ac (7

5DF)

0.38

DPR

E95

9595

9595

9695

9596

Thio

ben

carb

(8E

C)

4.0

DPR

E54

9493

6094

9349

9495

Pendi

met

hal

in (3

.3E

C)

0.75

DPR

E93

9596

9395

9691

9598

Clo

maz

one

(3M

E)

0.2

PPI

9494

9694

9496

9895

96C

lom

azon

e (3

ME

)0.

3PPI

9196

9595

9596

100

9497

Clo

maz

one

(3M

E)

0.4

PPI

9595

9796

9597

9995

97C

lom

azon

e (3

ME

) +0.

2pr

opan

il (S

tam

)3.

0E

PO

ST

9595

9798

9597

100

9597

Clo

maz

one

(3M

E) +

0.4

prop

anil

(Sta

m)

3.0

EPO

ST

9595

9798

9597

9995

97C

lom

azon

e (3

ME

) +0.

6pr

opan

il (S

tam

)3.

0E

PO

ST

9595

9899

9598

9995

98

LSD

(0.0

5)

43

35

33

73

2 conti

nued

AAES RESEARCH SERIES 462

20

Tab

le 2

. Sec

tion

2.

Effe

ct o

n r

ice

App

licat

ion

Inju

rySta

nd

redu

ctio

nSt

unt

ing

Yie

ldH

erbi

cide

Rat

etim

ing

5/28

6/4

6/18

5/28

6/4

6/18

5/28

6/4

6/18

9/10

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

067

45C

lom

azon

e (3

ME

)0.

2PR

E21

186

1311

013

130

6663

Clo

maz

one

(3M

E)

0.3

PR

E34

309

2618

813

154

6652

Clo

maz

one

(3M

E)

0.4

PR

E58

5133

2920

1421

2320

6574

Clo

maz

one

(3M

E)

0.5

PR

E61

5625

1423

2633

3935

6322

Clo

maz

one

(3M

E)

0.6

PR

E76

6034

1631

4434

3128

6081

Clo

maz

one

(3G

)0.

4PR

E35

2313

1113

618

165

7389

Clo

maz

one

(3G

)0.

5PR

E41

3516

1416

1119

2013

6892

Clo

maz

one

(3G

)0.

6PR

E44

3626

1118

2418

2016

6388

Clo

maz

one

(3M

E)

0.2

DPR

E5

41

08

11

11

6790

Clo

maz

one

(3M

E)

0.3

DPR

E14

91

38

011

90

6872

Clo

maz

one

(3M

E)

0.4

DPR

E16

130

109

016

90

6665

Clo

maz

one

(3M

E)

0.5

DPR

E28

203

1513

018

140

6818

Clo

maz

one

(3M

E)

0.6

DPR

E28

230

1410

011

150

6796

Clo

maz

one

(3G

)0.

4D

PR

E18

141

138

014

91

7394

Clo

maz

one

(3G

)0.

5D

PR

E18

151

98

38

113

7120

Clo

maz

one

(3G

)0.

6D

PR

E28

2113

1315

818

1810

6603

Quin

clor

ac (7

5DF)

0.38

DPR

E0

31

00

00

00

6771

Thio

ben

carb

(8E

C)

4.0

DPR

E0

00

00

00

00

6125

Pendi

met

hal

in (3

.3E

C)

0.75

DPR

E0

00

00

00

00

5918

Clo

maz

one

(3M

E)

0.2

PPI

2116

114

93

1413

169

64C

lom

azon

e (3

ME

)0.

3PPI

3123

414

118

1418

975

09C

lom

azon

e (3

ME

)0.

4PPI

5441

2121

1921

1920

1564

70C

lom

azon

e (3

ME

) +0.

2pr

opan

il (S

tam

)3.

0E

PO

ST

61

133

163

7066

Clo

maz

one

(3M

E) +

0.4

prop

anil

(Sta

m)

3.0

EPO

ST

1911

133

1813

7087

Clo

maz

one

(3M

E) +

0.6

prop

anil

(Sta

m)

3.0

EPO

ST

208

140

1510

6458

LSD

(0.0

5)

99

86

68

67

771

9

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

21

Tab

le 3

. Thio

benca

rb (B

oler

o) t

ank m

ixes

and s

equen

tial

wee

d c

ontr

ol p

rogr

ams

in d

rill-

seed

ed r

ice,

Stu

ttga

rt.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te............................................................

May

16,

199

7E

xper

imen

tal D

esig

n /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

..................................................

Sep

tem

ber

11, 1

997

Plo

t si

ze............................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..........................................................

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................7

in /

9 row

sD

ate

of F

lush

ing

......................................

May

20

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

..........................................................

June

19, 1

997

% O

M /

pH

....................

.........................................................

1.3

/ 5.

5

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; and L

PO

ST =

late

pos

tem

erge

nce

.App

licat

ion typ

eD

PR

EE

PO

ST

LPO

ST

Dat

e ap

plie

dM

ay 1

6199

7Ju

ne

3, 1

997

June

18, 1

997

Tim

e7:

00 a

m4:

00 p

m5:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)76

/ 7

871

/ 8

186

/ 8

8R

elat

ive

hum

idity

(%)

6889

65W

ind

(mph

, direc

tion)

12

2W

eath

ercl

ear

part

ly c

loudy

clou

dySoi

l moi

sture

moi

stm

oist

moi

stC

rop

stag

e/H

eigh

tN/

A2-

3 lf

/ 6"

4-5

lf /

9"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15Te

ejet

/ X

R11

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)E

CH

CG

N/A

2-3

lf /

1-2"

4-5

lf /

3.5"

R-E

CH

CG

N/A

2-3

lf /

1-2"

4-5

lf /

3"SE

BE

XN/

A2-

3 lf

/ 5"

5 lf

/ 4.

75"

PO

RO

LN/

AN/

A6

lf /

1.4"

BR

APP

N/A

N/A

4 lf

/ 2.

4"C

oncl

usi

ons:

Thio

ben

carb

, when

use

d in

pro

gram

appro

aches

with p

ropan

il, p

ropan

il +

mol

inat

e, o

r qu

incl

orac

, pro

vided

exc

elle

nt co

ntr

ol o

f all

wee

d s

pec

ies

pre

sent. T

hio

ben

carb

at 4.0

lb/A

tan

k-m

ixed

with 1

.0 lb

/A o

f pen

dim

ethal

in p

rovi

ded

exc

elle

nt co

ntr

ol o

f res

ista

nt an

d s

usc

eptible

bar

nya

rdgr

ass,

bu

t fa

iled to

contr

ol h

emp

sesb

ania

. All

yiel

ds w

ere

sign

ifica

ntly

grea

ter

than

the

chec

k.

AAES RESEARCH SERIES 462

22

Tab

le 3

. Sec

tion

1.

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

B

road

leaf

sig

nal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

46/

106/

187/

17/

156/

46/

106/

187/

17/

156/

46/

106/

18(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

00

0Th

iobe

nca

rb +

3.0

quin

clor

ac0.

5D

PR

E94

9695

9893

9696

8997

9496

9695

Thio

benca

rb +

2.0

quin

clor

ac fb

0.5

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

9598

9699

9698

9896

9890

9698

96Th

iobe

nca

rb +

4.0

pendi

met

hal

in1.

0D

PR

E91

9594

9694

9394

8698

9894

9384

Pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

9499

9695

9694

9994

9896

9196

93Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

2.0

prop

anil

(Sta

m)

3.0

EPO

ST

9498

9396

9894

9698

9699

9598

96Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb2.

0(p

ropa

nil

+ m

olin

ate)

4.5

LPO

ST

9394

9396

9293

9486

9695

9495

86Th

iobe

nca

rb +

3.0

prop

anil

(Sta

m)

3.0

EPO

ST

7373

9394

8376

9494

9591

Thio

benca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

7070

9398

7979

9091

9486

Thio

benca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0E

PO

ST

thio

benca

rb +

2.0

prop

anil

(Sta

m)

3.0

LPO

ST

7479

8996

8480

9191

9191

LSD

(0.0

5)

49

94

44

78

46

45

5 conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

23

Tab

le 3

. Sec

tion

2.

Wee

d co

ntr

olH

emp

sesb

ania

Com

mon

purs

lane

App

licat

ion

(SE

BE

X)

(PO

RO

L)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/4

6/10

6/18

7/1

7/15

6/4

6/10

6/18

6/4

6/10

6/18

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

00

00

057

21Th

iobe

nca

rb +

3.0

quin

clor

ac0.

5D

PR

E93

9893

9610

086

9478

90

078

21Th

iobe

nca

rb +

2.0

quin

clor

ac fb

0.5

thio

benca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

9496

9896

9994

9896

85

473

34Th

iobe

nca

rb +

4.0

pendi

met

hal

in1.

0D

PR

E64

6159

2121

8883

780

01

6924

Pendi

met

hal

in fb

1.0

thio

benca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

5393

9393

9081

9496

96

472

08Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

1.0

thio

benca

rb +

2.0

prop

anil

(Sta

m)

3.0

EPO

ST

4095

9693

9484

9593

45

571

70Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

1.0

thio

benca

rb2.

0(p

ropa

nil

+ m

olin

ate)

4.5

LPO

ST

3436

3696

100

8586

834

03

7284

Thio

benca

rb +

3.0

prop

anil

(Sta

m)

3.0

EPO

ST

9194

9896

9094

105

7080

Thio

benca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

9090

9410

091

918

567

61Th

iobe

nca

rb +

2.0

prop

anil

(Sta

m) f

b3.

0th

iobe

nca

rb +

2.0

prop

anil

(Sta

m)

3.0

LPO

ST

9491

9990

9896

55

7458

LSD

(0.0

5)

1410

96

510

67

43

292

0

AAES RESEARCH SERIES 462

24

Tab

le 4

. Reduce

d ra

te D

PRE c

om

bin

atio

ns

for b

arnyar

dgra

ss c

ontr

ol,

Stu

ttgar

t.Tab

le 4

. Reduce

d ra

te D

PRE c

om

bin

atio

ns

for b

arnyar

dgra

ss c

ontr

ol,

Stu

ttgar

t.Tab

le 4

. Reduce

d ra

te D

PRE c

om

bin

atio

ns

for b

arnyar

dgra

ss c

ontr

ol,

Stu

ttgar

t.Tab

le 4

. Reduce

d ra

te D

PRE c

om

bin

atio

ns

for b

arnyar

dgra

ss c

ontr

ol,

Stu

ttgar

t.Tab

le 4

. Reduce

d ra

te D

PRE c

om

bin

atio

ns

for b

arnyar

dgra

ss c

ontr

ol,

Stu

ttgar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.....................................................................................S

tutt

gart

Plan

ting

dat

e...............................................................M

ay 1

2, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e......................................................

Sept

embe

r 11, 1

997

Plot si

ze.........................................................................6 ft

by 16 ft

Crop

/Var

iety

............................................................

Rice

/Kay

bonn

etRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t.......................................7

in /

9 ro

ws

Dat

e of F

lush

ing

........................................

May

20 a

nd Jun

e 7, 1

997

Soil t

ype

...........................C

row

ley

silt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)D

ate

of F

lood

..............................................................

June

18, 1

997

% O

M /

pH

..........................................................................

1.3

/ 5

.5

Co

mm

en

ts:

Co

mm

en

ts:

Co

mm

en

ts:

Co

mm

en

ts:

Co

mm

en

ts: D

PRE

= d

elay

ed p

reem

erge

nce.

App

licat

ion typ

eD

PR

ED

ate

appl

ied

May

16,

199

7Ti

me

6:00

pm

Inco

rpor

atio

n e

quip

men

tN/

AAir/S

oil t

empe

ratu

re (F

)75

/ 7

6R

elat

ive

hum

idity

(%)

65W

ind

(mph

, direc

tion)

1W

eath

ercl

ear

Soi

l moi

sture

moi

stC

rop

stag

e/H

eigh

tN/

ASpr

ayer

type

/mph

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

Gpa

/ P

si15

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)E

CH

CG

N/A

R-E

CH

CG

N/A

BR

APP

N/A

Con

clusi

ons:

Res

ults

from

this

exp

erim

ent in

dica

te that

DPR

E m

ixtu

res,

eve

n a

t re

duce

d ra

tes,

can

effe

ctiv

ely

contr

ol r

esis

tant ba

rnya

rdgr

ass

if ad

equat

e w

ater

is a

pplie

d fo

r co

ntinuou

s ac

tiva

tion

. All

trea

tmen

ts p

rovi

ded

exce

llent co

ntr

ol o

f res

ista

nt an

d su

scep

tibl

e ba

rnya

rdgr

ass

exce

pt fo

r B

oler

o at

4.0

lb/A

. No

trea

tmen

tca

use

d si

gnifi

cant yi

eld

redu

ctio

ns.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

25

Tab

le 4

. Sec

tion

1.

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

(R-E

CH

CG

)(E

CH

CG

)H

erbi

cide

Rat

e6/

46/

106/

187/

156/

46/

106/

187/

15(lb

/A)

(%)

Trea

tmen

ts a

pplie

d D

PRE

:U

ntr

eate

d ch

eck

00

00

00

00

Thio

benca

rb4.

093

8473

6391

8675

78Pe

ndi

met

hal

in1.

093

9591

9493

9491

94Q

uin

clor

ac0.

2595

9995

9594

9595

95C

lom

azon

e0.

495

9695

9595

9595

95Th

iobe

nca

rb +

2.0

pendi

met

hal

in1.

095

9691

9595

9591

95Pe

ndi

met

hal

in +

1.0

quin

clor

ac0.

188

9510

094

9595

9594

95Th

iobe

nca

rb +

2.0

quin

clor

ac0.

188

9596

9395

9595

9495

Clo

maz

one

+0.

3th

iobe

nca

rb2.

095

9895

9595

9595

95C

lom

azon

e+0.

3pe

ndi

met

hal

in1.

095

9995

9595

9595

95C

lom

azon

e +

0.3

quin

clor

ac0.

188

9496

9394

9495

9595

Thio

benca

rb +

2.0

pendi

met

hal

in +

1.0

quin

clor

ac0.

188

9510

095

9595

9595

95

LSD

(0.0

5)

23

32

22

34

conti

nued

AAES RESEARCH SERIES 462

26

Tab

le 4

. Sec

tion

2

W

eed

contr

olB

road

leaf

sig

nal

gras

s (B

RA

PP)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

e6/

46/

106/

187/

156/

46/

106/

18yi

eld

(lb/A

)(%

)(lb

/A)

Trea

tmen

ts a

pplie

d D

PRE

:U

ntr

eate

d ch

eck

00

00

00

065

93Th

iobe

nca

rb4.

091

8073

701

03

8056

Pendi

met

hal

in1.

093

9489

931

04

7754

Quin

clor

ac0.

2595

9595

953

14

8218

Clo

maz

one

0.4

9595

9595

116

378

84Th

iobe

nca

rb +

pendi

met

hal

in1.

095

9591

956

55

8442

Pendi

met

hal

in +

quin

clor

ac0.

188

9595

9595

95

576

88Th

iobe

nca

rb +

quin

clor

ac0.

188

9595

9495

00

083

26C

lom

azon

e +

thio

benca

rb2.

095

9595

9511

55

8132

Clo

maz

one+

pendi

met

hal

in1.

095

9595

958

45

7784

Clo

maz

one

+qu

incl

orac

0.18

894

9494

940

04

7554

Thio

benca

rb +

pendi

met

hal

in +

quin

clor

ac0.

188

9595

9595

65

577

01

LSD

(0.0

5)

23

35

32

267

9

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

27

Tab

le 5

. In

jury

to

rice

and

wee

d co

ntr

ol w

ith t

ricl

opyr

(Gra

nds

tand)

in r

ice

at t

hre

e ap

plic

atio

n t

imin

gs, S

tutt

gart

.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te...........................................................M

ay 1

2, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

..................................................

Sep

tem

ber

11, 1

997

Plo

t si

ze......................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..................................................

.......R

ice/

Kay

bonnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................

7 in

/ 9

row

sD

ate

of F

lush

ing

......................................

May

20

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

..........................................................

June

18, 1

997

% O

M /

pH

............

..................................................

........

1.3

/ 5.

5

Com

men

ts: E

PO

ST =

ear

ly p

oste

mer

gence

; MPO

ST =

mid

-pos

tem

erge

nce

; PI =

pan

icle

initia

tion

.App

licat

ion typ

eE

PO

ST

MPO

ST

PI

Dat

e ap

plie

dJu

ne

3, 1

997

June

10, 1

997

July

8, 1

997

Tim

e6:

00 p

m5:

00 p

m1:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)71

/ 8

168

/ 7

586

/ 8

4R

elat

ive

hum

idity

(%)

8975

81W

ind

(mph

, direc

tion)

34

4W

eath

erpa

rtly

clo

udy

clou

dym

ostly

cle

arSoi

l moi

sture

moi

stm

oist

flood

edC

rop

stag

e/H

eigh

t2-

3 lf

/ 5"

3-4

lf /

8"PI

/ 2

3"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 /

3N

ozzl

e ty

pe/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15Te

ejet

/ X

R11

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)E

CH

CG

2-3

lf /

0.5"

3-4

lf /

1.25

"N/

AR

-EC

HC

G2-

3 lf

/ 0.

5"3-

4 lf

/ 1.

25"

N/A

SE

BE

X3

lf /

4.5"

5 lf

/ 5.

25"

12 lf

/ 2

5"PO

RO

L4

lf /

0.25

"6

lf /

1"N/

AC

oncl

usi

ons:

Tri

clop

yr a

lone

or in

com

binat

ion w

ith e

ither

pro

panil

(Supe

r W

ham

) or

prop

anil

+ m

olin

ate

(Arr

osol

o) a

t an

y tim

ing

was

effe

ctiv

e in

con

trol

ling

hem

pse

sban

ia. E

arlie

r ap

plic

atio

n o

f tri

clop

yr a

lone

(EPO

ST) o

r in

com

bin

atio

n w

ith the

pro

pan

il fo

rmu

lation

s (E

PO

ST, M

PO

ST) m

ention

ed a

bov

e co

ntr

olle

d c

omm

onpu

rsla

ne.

Ther

e w

as n

o da

ta fo

r co

mm

on p

urs

lane

contr

ol w

ith s

ingl

e tr

eatm

ents

of t

ricl

opyr

or

com

binat

ions

appl

ied

at the

late

r PI

tim

ing

due

to la

ck o

f infe

stat

ion

afte

r th

e flo

od w

as a

pplie

d. B

arnya

rdgr

ass

rem

ainin

g in

the

trea

tmen

ts o

f tr

iclo

pyr

alo

ne,

MPO

ST, a

nd t

riclo

pyr

alon

e or

with

prop

anil,

P1 w

as t

reat

ed w

ith

asa

lvag

e tr

eatm

ent

of m

olin

ate

at 5

.0 lb

ai/

A o

n Ju

ne 2

5. Y

ield

dat

a sh

owed

tha

t al

l pla

nts

rece

ivin

g th

e m

olin

ate

trea

tmen

t w

ere

inju

red

and

suff

ered

red

uced

yiel

ds. Y

ield

s fr

om o

ther

tre

atm

ents

did

not

sig

nific

antly

diff

er fro

m t

he u

ntre

ated

che

ck.

AAES RESEARCH SERIES 462

28

Tab

le 5

. Sec

tion

1.

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Hem

p se

sban

iaApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(S

EB

EX

)H

erbi

cide

Rat

etim

ing

6/10

6/18

6/23

6/10

6/18

6/23

6/10

6/18

6/23

7/1

7/8

7/29

8/21

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

00

00

0Tr

iclo

pyr

+0.

25A

G-9

8 (0

.25%

)M

PO

ST

2045

2356

8910

010

095

100

100

Tric

lopy

r +

prop

anil

0.19

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%)

EPO

ST

8686

7691

9586

9510

010

010

095

9810

0Tr

iclo

pyr

+0.

19(p

ropa

nil

+ m

olin

ate)

4.0

EPO

ST

7385

8185

8991

9510

010

010

093

9599

Tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%)

MPO

ST

9697

9898

100

100

100

9596

100

Tric

lopy

r +

prop

anil

0.19

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%) f

bE

PO

ST

tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +1.

0A

gri-D

ex (1

%)

PI

7985

7693

9589

9510

099

100

9598

100

Tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%) f

bM

PO

ST

tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +1.

0A

gri-D

ex (1

%)

PI

9595

9896

100

100

100

9599

100

Tric

lopy

r +

0.25

AG

-98 (0

.25%

)PI

8889

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

29

Tab

le 5

. Sec

tion

1. C

onti

nued

.W

eed

contr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Hem

p se

sban

iaApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(S

EB

EX

)H

erbi

cide

Rat

etim

ing

6/10

6/18

6/23

6/10

6/18

6/23

6/10

6/18

6/23

7/1

7/8

7/29

8/21

(lb/A

)(%

)

Tric

lopy

r +

0.38

AG

-98 (0

.25%

)PI

9510

0Tr

iclo

pyr

+ pr

opan

il0.

25(S

upe

r W

ham

) +1.

0A

gri-D

ex (1

%)

PI

9510

0Tr

iclo

pyr

+ pr

opan

il0.

38(S

upe

r W

ham

) +1.

0A

gri-D

ex 1

%)

PI

9410

0Tr

iclo

pyr

+0.

25pr

opan

il +

mol

inat

e1.

0PI

9510

0

LSD

(0.0

59

1011

69

130

51

03

52

Tab

le 5

. Sec

tion

2.

Wee

d co

ntr

olC

omm

on p

urs

lane

App

licat

ion

(PO

RO

L)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/18

6/23

7/8

6/10

6/18

6/23

7/1

7/8

7/29

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

00

070

92Tr

iclo

pyr

+0.

25A

G-9

8 (0

.25%

)M

PO

ST

8910

095

1016

1433

1651

00Tr

iclo

pyr

+ pr

opan

il0.

19(S

upe

r W

ham

) +4.

0A

gri-D

ex (1

%)

EPO

ST

100

100

9514

91

95

072

45Tr

iclo

pyr

+0.

19(p

ropa

nil

+ m

olin

ate)

4.0

EPO

ST

100

100

9510

85

115

071

23 conti

nued

AAES RESEARCH SERIES 462

30

Tab

le 5

. Sec

tion

2. C

onti

nued

.W

eed

contr

olC

omm

on p

urs

lane

App

licat

ion

(PO

RO

L)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/18

6/23

7/8

6/10

6/18

6/23

7/1

7/8

7/29

yiel

d(lb

/A)

(%)

(lb/A

)

Tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%)

MPO

ST

100

100

9514

205

144

6664

Tric

lopy

r +

prop

anil

0.19

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%) f

bE

PO

ST

tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +1.

0A

gri-D

ex (1

%)

PI

100

100

9511

105

56

069

82Tr

iclo

pyr

+ pr

opan

il0.

25(S

upe

r W

ham

) +4.

0A

gri-D

ex (1

%) f

bM

PO

ST

tric

lopy

r +

prop

anil

0.25

(Supe

r W

ham

) +1.

0A

gri-D

ex (1

%)

PI

100

100

9315

199

81

6869

Tric

lopy

r +

0.25

AG

-98 (0

.25%

)PI

1852

59Tr

iclo

pyr

+0.

38A

G-9

8 (0

.25%

)PI

2049

92Tr

iclo

pyr

+ pr

opan

il0.

25(S

upe

r W

ham

) +1.

0A

gri-D

ex (1

%)

PI

1855

08Tr

iclo

pyr

+ pr

opan

il0.

38(S

upe

r W

ham

) +1.

0A

gri-D

ex 1

%)

PI

954

29Tr

iclo

pyr

+0.

25pr

opan

il +

mol

inat

e1.

0PI

1057

68

LSD

(0.0

5)

30

23

36

96

573

6

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

31

Tab

le 6

. Nuts

edge

contr

ol w

ith h

alosu

lfuro

n (Per

mit

) in

rice

, Stu

ttgar

t.Tab

le 6

. Nuts

edge

contr

ol w

ith h

alosu

lfuro

n (Per

mit

) in

rice

, Stu

ttgar

t.Tab

le 6

. Nuts

edge

contr

ol w

ith h

alosu

lfuro

n (Per

mit

) in

rice

, Stu

ttgar

t.Tab

le 6

. Nuts

edge

contr

ol w

ith h

alosu

lfuro

n (Per

mit

) in

rice

, Stu

ttgar

t.Tab

le 6

. Nuts

edge

contr

ol w

ith h

alosu

lfuro

n (Per

mit

) in

rice

, Stu

ttgar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Stut

tgar

tPl

anting

dat

e...............................................................M

ay 1

2, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

.................................................R

CB /

4Har

vest

dat

e.....................................................S

epte

mbe

r 11, 1

997

Plot si

ze...........................................................................6

ft b

y 16 ft

Crop

/Var

iety

............................................................

Rice

/Kay

bonn

etRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t........................................

7 in

/ 9

row

sD

ate

of F

lush

ing

........................................

May

20 a

nd Jun

e 7, 1

997

Soil t

ype

............................

Cro

wle

y si

lt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)D

ate

of F

lood

.............................................................J

une

18, 1

997

% O

M /

pH

...........................................................................

1.3

/ 5

.5

Com

men

ts: E

PO

ST =

ear

ly p

oste

mer

gence

and P

OFL

= pos

t-flo

od.

App

licat

ion typ

eE

PO

ST

PO

FL

Dat

e ap

plie

dJu

ne

3, 1

997

June

23, 1

997

Tim

e6:

00 p

m9:

15 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)71

/ 8

187

/ 8

4R

elat

ive

hum

idity

(%)

8980

Win

d (m

ph, d

irec

tion)

32

Wea

ther

part

ly c

loudy

clea

rSoi

l moi

sture

moi

stflo

oded

Cro

p st

age/

Hei

ght

2-3

lf /

5"5-

6 lf

/ 14

"Spr

ayer

type

/mph

BkP

kCO

2 /

3B

kPkC

O2 /

3N

ozzl

e ty

pe/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)C

YPE

S2

lf /

4"6-

8 lf

/ 12

"C

oncl

usi

ons:

Hal

osulfu

ron a

pplie

d al

one

EPO

ST

at 0

.047

, 0.0

62, a

nd

0.09

4 lb

/A c

ontr

olle

d ye

llow

nuts

edge

bet

ter

than

ben

tazo

n o

r be

nsu

lfuro

n. H

alos

ulfu

ron +

tric

lopy

r ap

plie

d E

POST

also

show

ed b

ette

r co

ntr

ol than

did

ben

tazo

n o

r be

nsu

lfuro

n, w

ith e

xcel

lent co

ntr

ol o

f up

to 9

3% a

t 5

wee

ks a

fter

tre

atm

ent. T

her

e w

ere

no

sign

ifica

nt di

ffere

nce

s in

yie

lds.

AAES RESEARCH SERIES 462

32

Tab

le 6

.Yel

low

nuts

edge

Effe

ct o

n r

ice

App

licat

ion

(CYPE

S) c

ontr

olSt

unt

ing

Inju

ryYie

ldH

erbi

cide

Rat

etim

ing

6/10

6/23

7/8

6/10

6/23

7/8

6/10

6/23

7/8

9/11

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

064

09H

alos

ulfu

ron +

0.04

7In

duce

(0.2

5%)

EPO

ST

6658

830

10

00

064

46H

alos

ulfu

ron +

0.06

2In

duce

(0.2

5%)

EPO

ST

7984

889

80

00

063

09H

alos

ulfu

ron +

0.09

4In

duce

(0.2

5%)

EPO

ST

8484

914

60

00

162

91B

enta

zon +

0.75

Agr

i-D

ex (1

%)

EPO

ST

6963

750

30

00

065

07B

enta

zon +

0.06

Agr

i-D

ex (1

%)

EPO

ST

5339

660

30

00

166

00H

alos

ulfu

ron +

0.04

7tr

iclo

pyr +

0.25

Indu

ce (0

.25%

)E

PO

ST

8590

9313

119

96

363

22H

alos

ulfu

ron +

0.04

7In

duce

(0.2

5%)

PO

FL

680

367

10H

alos

ulfu

ron +

0.06

2In

duce

(0.2

5%)

PO

FL

700

864

14H

alos

ulfu

ron +

0.09

4In

duce

(0.2

5%)

PO

FL

835

961

63B

enta

zon +

0.75

Agr

i-D

ex (1

%)

PO

FL

580

063

41H

alos

ulfu

ron +

0.04

7tr

iclo

pyr +

0.25

Indu

ce (0

.25%

)PO

FL

8311

1059

81

LSD

(0.0

5)

925

124

52

41

3N

S

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

33

Tab

le 7

. W

eed c

ontr

ol w

ith p

ropan

il fo

rmula

tions

in E

PO

ST p

rogra

ms,

Stu

ttgar

t.Tab

le 7

. W

eed c

ontr

ol w

ith p

ropan

il fo

rmula

tions

in E

PO

ST p

rogra

ms,

Stu

ttgar

t.Tab

le 7

. W

eed c

ontr

ol w

ith p

ropan

il fo

rmula

tions

in E

PO

ST p

rogra

ms,

Stu

ttgar

t.Tab

le 7

. W

eed c

ontr

ol w

ith p

ropan

il fo

rmula

tions

in E

PO

ST p

rogra

ms,

Stu

ttgar

t.Tab

le 7

. W

eed c

ontr

ol w

ith p

ropan

il fo

rmula

tions

in E

PO

ST p

rogra

ms,

Stu

ttgar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.....................................................................................

Stut

tgar

tPl

anting

dat

e...............................................................

May

12, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e......................................................

Sept

embe

r 10, 1

997

Plot si

ze..........................................................................

6 ft

by 16 ft

Crop

/Var

iety

.............................................................R

ice/

Kay

bonn

etRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t....................................

7.5

in / 9

row

sD

ate

of F

lush

ing

..........................................

May

20 a

nd Jun

e 7, 1

997

Soil t

ype

...........................

Cro

wle

y si

lt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)D

ate

of F

lood

..............................................................

June

19, 1

997

% O

M /

pH

...........................................................................1

.3 / 5

.5

Co

mm

en

ts:

Co

mm

en

ts:

Co

mm

en

ts:

Co

mm

en

ts:

Co

mm

en

ts: E

POST

= e

arly

pos

tem

ergen

ce; L

POST

= la

te p

oste

mer

gen

ce; a

nd E

DF

= d

ry fl

owab

le fo

rmul

atio

n.App

licat

ion typ

eE

PO

ST

LPO

ST

Dat

e ap

plie

dJu

ne

3, 1

997

June

18, 1

997

Tim

e4:

00 p

m5:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)78

/ 8

586

/ 8

8R

elat

ive

hum

idity

(%)

8265

Win

d (m

ph, d

irec

tion)

42

Wea

ther

part

ly c

loudy

clea

rSoi

l moi

sture

moi

stm

oist

Cro

p st

age/

Hei

ght

2-3

lf /

5"4-

5 lf

/ 9"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)R

-EC

HC

G2-

3 lf

/ 0.

5"4-

5 lf

/ 2.

4"E

CH

CG

2-3

lf /

0.5"

4-5

lf /

2.4"

BR

APP

2-3

lf /

0.5"

4-5

lf /

2"C

oncl

usi

ons:

This

stu

dy

was

con

du

cted

to

com

par

e th

e ef

fect

iven

ess

of t

he

diff

eren

t pro

pan

il fo

rmu

lation

s on

res

ista

nt

and s

usc

eptible

bar

nya

rdgr

ass

and

broa

dlea

f sig

nal

gras

s. T

he

two

Sta

m fo

rmula

tion

s (M

-4 a

nd

80 E

DF) w

ere

wea

k on

the

resi

stan

t ba

rnya

rdgr

ass.

Supe

r W

ham

had

slig

htly

mor

e ac

tivi

ty than

the

other

Sta

m fo

rmula

tions,

and

Arr

osol

o an

d pr

opan

il +

carb

aryl

gav

e go

od c

ontr

ol a

t 3.

0 an

d 4.

0 lb

/A. S

upe

r W

ham

alo

ne

and

in c

ombi

nat

ion w

ith B

oler

o ga

ve g

ood

contr

ol o

f all

gras

ses,

as

did

pro

pan

il an

d r

esid

ual

her

bic

ides

. Sta

m a

t 3.0

lb/A

+ c

arbar

yl h

ad the

high

est

inju

ry a

nd red

uced

yie

ld a

t th

e si

ngle

and

seq

uent

ial

appl

icat

ion

timin

gs. M

ost

othe

r tr

eatm

ents

did

not

sig

nific

antly

red

uce

yiel

ds.

AAES RESEARCH SERIES 462

34

Tab

le 7

. Sec

tion

1.

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Bro

adle

af s

ignal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

106/

187/

17/

156/

106/

187/

17/

156/

106/

187/

17/

15(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

00

Prop

anil

(Sta

m M

-4)

4.0

EPO

ST

7876

6464

8991

9884

9598

9894

Prop

anil

(Sta

m 8

0ED

F) +

4.0

AG

-98 (0

.25%

)E

PO

ST

6845

2840

8995

9389

9499

9895

Prop

anil

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%)

EPO

ST

7379

9363

9495

9994

9598

9995

(Pro

panil

+ m

olin

ate)

6.0

EPO

ST

8893

9595

9599

9895

9599

9895

Prop

anil

(Sta

m M

-4) +

4.0

carb

aryl

0.1

EPO

ST

9198

9995

9498

9995

9598

9995

Prop

anil

(Sta

m (M

-4) f

b3.

0E

PO

ST

prop

anil

(Sta

m M

-4)

3.0

LPO

ST

5463

6151

9395

9991

9398

9995

Prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

) fb

EPO

ST

prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

)LPO

ST

8479

6660

9489

9891

9495

9995

Prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%) f

bE

PO

ST

prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%)

LPO

ST

8691

9995

9498

9995

9599

9995

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

(pro

panil

+ m

olin

ate)

4.5

LPO

ST

9094

9595

9495

9995

9599

9995

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

fb0.

1E

PO

ST

prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

0.1

LPO

ST

9599

9995

9599

9995

9599

9995

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

35

Tab

le 7

. Sec

tion

1. C

onti

nued

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Bro

adle

af s

ignal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

106/

187/

17/

156/

106/

187/

17/

156/

106/

187/

17/

15(lb

/A)

(%)

Prop

anil

(Supe

r W

ham

) +3.

0th

iobe

nca

rb +

1.0

Agr

i-D

ex (1

%) f

bE

PO

ST

prop

anil

(Supe

r W

ham

) +3.

0th

iobe

nca

rb +

1.0

Agr

i-D

ex (1

%)

LPO

ST

9496

100

9594

9810

095

9599

100

95Q

uin

clor

ac +

0.12

5A

gri-D

ex (1

%)

EPO

ST

7890

9895

6991

9995

5098

9995

Quin

clor

ac +

0.25

Agr

i-D

ex (1

%)

EPO

ST

7595

9695

7695

9695

3698

9695

Quin

clor

ac +

0.37

5A

gri-D

ex (1

%)

EPO

ST

9591

100

9465

9010

095

5496

100

95Pr

opan

il (S

tam

M-4

) +3.

0qu

incl

orac

0.12

5E

PO

ST

7890

100

9588

9310

095

9498

100

95Pr

opan

il (S

tam

80E

DF) +

3.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)E

PO

ST

9399

9695

9599

100

9595

9910

095

Prop

anil

(Supe

r W

ham

) +3.

0qu

incl

orac

+0.

125

Agr

i-D

ex (1

%)

EPO

ST

9096

100

9595

9910

095

9599

100

95(P

ropa

nil

+ m

olin

ate)

+4.

5qu

incl

orac

0.12

5E

PO

ST

9498

100

9593

9810

095

9599

100

95Pr

opan

il (S

tam

M-4

) +3.

0ca

rbar

yl +

0.1

quin

clor

ac0.

125

EPO

ST

9599

100

9595

9910

095

9599

100

95Pr

opan

il (S

tam

M-4

) +3.

0qu

incl

orac

0.25

EPO

ST

7456

7953

8181

9586

8896

9995

Prop

anil

(Sta

m 8

0ED

F) +

3.0

quin

clor

ac +

0.25

AG

-98 (0

.25%

)E

PO

ST

9499

100

9594

9910

095

9599

100

98co

nti

nued

AAES RESEARCH SERIES 462

36

Tab

le 7

. Sec

tion

1. C

onti

nued

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Bro

adle

af s

ignal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

106/

187/

17/

156/

106/

187/

17/

156/

106/

187/

17/

15(lb

/A)

(%)

Prop

anil

(Supe

r W

ham

) +3.

0qu

incl

orac

+0.

25A

gri-D

ex (1

%)

EPO

ST

9598

100

9595

9910

095

9599

100

95(P

ropa

nil

+ m

olin

ate)

+4.

5qu

incl

orac

0.25

EPO

ST

9499

100

9595

9910

095

9599

100

95Pr

opan

il (S

tam

M-4

) +3.

0ca

rbar

yl +

0.1

quin

clor

ac0.

25E

PO

ST

9495

9664

9496

9681

9498

9695

Prop

anil

(Sta

m M

-4)

3.0

EPO

ST

8583

7564

8890

9388

8996

9995

Prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

)E

PO

ST

7566

7859

7876

9971

8695

100

95Pr

opan

il (S

upe

r W

ham

) +3.

0A

gri-D

ex (1

%)

EPO

ST

8894

100

9391

9610

095

9598

100

95(P

ropa

nil

+ m

olin

ate)

4.5

EPO

ST

8694

100

9193

9810

095

9599

100

95Pr

opan

il (S

tam

M-4

) +3.

0ca

rbar

yl0.

1E

PO

ST

9599

100

9595

9910

095

9599

100

95Pr

opan

il (S

tam

M-4

) +3.

0th

iobe

nca

rb3.

0E

PO

ST

9295

100

9594

9610

095

9598

100

95Pr

opan

il (S

tam

80E

DF) +

3.0

thio

benca

rb +

3.0

AG

-98 (0

.25%

)E

PO

ST

9395

100

9594

9810

095

9599

100

95Pr

opan

il (S

upe

r W

ham

) +3.

0th

iobe

nca

rb +

3.0

Agr

i-D

ex (1

%)

EPO

ST

6990

9694

6991

100

9446

9494

95(P

ropa

nil

+ m

olin

ate)

+4.

5th

iobe

nca

rb3.

0E

PO

ST

8595

100

9586

9610

095

9199

100

95Pr

opan

il (S

tam

(M-4

) +3.

0ca

rbar

yl +

0.1

thio

benca

rb3.

0E

PO

ST

9599

9995

9599

9995

9599

9995

Prop

anil

(Sta

m M

-4) +

3.0

pendi

met

hal

in1.

0E

PO

ST

8595

100

9585

9610

095

9399

100

95co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

37

Tab

le 7

. Sec

tion

1. C

onti

nued

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Bro

adle

af s

ignal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

106/

187/

17/

156/

106/

187/

17/

156/

106/

187/

17/

15(lb

/A)

(%)

Prop

anil

(Sta

m 8

0ED

F) +

3.0

pendi

met

hal

in +

1.0

AG

-98 (0

.25%

)1.

0E

PO

ST

8194

100

9488

9810

095

9499

100

95Pr

opan

il (S

upe

r W

ham

) +3.

0pe

ndi

met

hal

in +

1.0

Agr

i-D

ex (1

%)

EPO

ST

8898

100

9590

9910

095

9499

100

95(P

ropa

nil

+ m

olin

ate)

+4.

5pe

ndi

met

hal

in1.

0E

PO

ST

8398

9995

8999

9995

9199

9995

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

+0.

1pe

ndi

met

hal

in1.

0E

PO

ST

9499

100

9595

9910

095

9599

100

95Pr

opan

il (S

tam

M-4

) +2.

0qu

incl

orac

0.12

5E

PO

ST

6969

9173

7479

100

8571

9610

095

Prop

anil

(Sta

m 8

0ED

F) +

2.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)E

PO

ST

7869

9664

8081

100

8680

9510

095

Prop

anil

(Supe

r W

ham

) +2.

0qu

incl

orac

+0.

125

Agr

i-D

ex (1

%)

EPO

ST

8596

100

9590

9610

095

9499

100

95(P

ropa

nil

+ m

olin

ate)

+3.

0qu

incl

orac

0.12

5E

PO

ST

8894

100

9594

9510

095

9599

100

95Pr

opan

il (S

tam

M-4

) +2.

0ca

rbar

yl +

0.1

quin

clor

ac0.

125

EPO

ST

9199

100

9595

9910

095

9599

100

95Pr

opan

il (S

tam

M-4

) +2.

0qu

incl

orac

0.25

EPO

ST

8694

100

9588

9510

095

9599

100

95Pr

opan

il (S

tam

80E

DF) +

2.0

quin

clor

ac +

0.25

AG

-98 (0

.25%

)E

PO

ST

9396

100

9593

9610

095

9598

100

95co

nti

nued

AAES RESEARCH SERIES 462

38

Tab

le 7

. Sec

tion

1. C

onti

nued

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Bro

adle

af s

ignal

gras

sApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(B

RA

PP)

Her

bici

deR

ate

timin

g6/

106/

187/

17/

156/

106/

187/

17/

156/

106/

187/

17/

15(lb

/A)

(%)

Prop

anil

(Supe

r W

ham

) +2.

0qu

incl

orac

+0.

25A

gri-D

ex (1

%)

EPO

ST

9499

100

9594

9810

095

9599

100

95(P

ropa

nil

+ m

olin

ate)

+3.

0qu

incl

orac

0.25

EPO

ST

9199

100

9593

9910

095

9510

010

095

Prop

anil

(Sta

m M

-4) +

2.0

carb

aryl

+0.

1qu

incl

orac

0.25

EPO

ST

9510

010

095

9510

010

095

9510

010

095

LSD

(0.0

5)

910

811

77

48

73

30

conti

nued

Tab

le 7

. Sec

tion

2.

App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/10

6/18

7/1

7/15

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

5228

Prop

anil

(Sta

m M

-4)

4.0

EPO

ST

209

00

6624

Prop

anil

(Sta

m 8

0ED

F) +

4.0

AG

-98 (0

.25%

)E

PO

ST

144

10

6873

Prop

anil

(Supe

r W

ham

) +4.

0A

gri-D

ex (1

%)

EPO

ST

169

00

6798

(Pro

panil

+ m

olin

ate)

6.0

EPO

ST

2110

31

7174

Prop

anil

(Sta

m M

-4) +

4.0

carb

aryl

0.1

EPO

ST

4113

00

6296

Prop

anil

(Sta

m (M

-4) f

b3.

0E

PO

ST

prop

anil

(Sta

m M

-4)

3.0

LPO

ST

138

01

6600 co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

39

Tab

le 7

. Sec

tion

2.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/10

6/18

7/1

7/15

yiel

d(lb

/A)

(%)

(lb/A

)

Prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

) fb

EPO

ST

prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

)LPO

ST

1010

30

6636

Prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%) f

bE

PO

ST

prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%)

LPO

ST

208

50

6867

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

(pro

panil

+ m

olin

ate)

4.5

LPO

ST

1914

50

6641

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

fb0.

1E

PO

ST

prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

0.1

LPO

ST

5325

338

5512

Prop

anil

(Supe

r W

ham

) +3.

0th

iobe

nca

rb +

1.0

Agr

i-D

ex (1

%) f

bE

PO

ST

prop

anil

(Supe

r W

ham

) +3.

0th

iobe

nca

rb +

1.0

Agr

i-D

ex (1

%)

LPO

ST

136

10

6717

Quin

clor

ac +

0.12

5A

gri-D

ex (1

%)

EPO

ST

45

00

6526

Quin

clor

ac +

0.25

Agr

i-D

ex (1

%)

EPO

ST

43

00

6358

Quin

clor

ac +

0.37

5A

gri-D

ex (1

%)

EPO

ST

03

00

5811

Prop

anil

(Sta

m M

-4) +

3.0

quin

clor

ac0.

125

EPO

ST

115

00

7002

Prop

anil

(Sta

m 8

0ED

F) +

3.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)E

PO

ST

149

10

6311 co

nti

nued

AAES RESEARCH SERIES 462

40

Tab

le 7

. Sec

tion

2.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/10

6/18

7/1

7/15

yiel

d(lb

/A)

(%)

(lb/A

)

Prop

anil

(Supe

r W

ham

) +3.

0qu

incl

orac

+0.

125

Agr

i-D

ex (1

%)

EPO

ST

148

00

6810

(Pro

panil

+ m

olin

ate)

+4.

5qu

incl

orac

0.12

5E

PO

ST

188

10

6226

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

+0.

1qu

incl

orac

0.12

5E

PO

ST

3913

00

6419

Prop

anil

(Sta

m M

-4) +

3.0

quin

clor

ac0.

25E

PO

ST

108

00

6207

Prop

anil

(Sta

m 8

0ED

F) +

3.0

quin

clor

ac +

0.25

AG

-98 (0

.25%

)E

PO

ST

86

10

6863

Prop

anil

(Supe

r W

ham

) +3.

0qu

incl

orac

+0.

25A

gri-D

ex (1

%)

EPO

ST

144

30

6325

(Pro

panil

+ m

olin

ate)

+4.

5qu

incl

orac

0.25

EPO

ST

208

00

6643

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

+0.

1qu

incl

orac

0.25

EPO

ST

4314

01

6250

Prop

anil

(Sta

m M

-4)

3.0

EPO

ST

146

00

7066

Prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

)E

PO

ST

55

10

6111

Prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%)

EPO

ST

2413

30

6426

(Pro

panil

+ m

olin

ate)

4.5

EPO

ST

2311

30

7077

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

0.1

EPO

ST

7369

4920

4739

Prop

anil

(Sta

m M

-4) +

3.0

thio

benca

rb3.

0E

PO

ST

2810

00

6677 co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

41

Tab

le 7

. Sec

tion

2.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/10

6/18

7/1

7/15

yiel

d(lb

/A)

(%)

(lb/A

)

Prop

anil

(Sta

m 8

0ED

F) +

3.0

thio

benca

rb +

3.0

AG

-98 (0

.25%

)E

PO

ST

239

00

6004

Prop

anil

(Supe

r W

ham

) +3.

0th

iobe

nca

rb +

3.0

Agr

i-D

ex (1

%)

EPO

ST

51

30

6377

(Pro

panil

+ m

olin

ate)

+4.

5th

iobe

nca

rb3.

0E

PO

ST

189

10

6323

Prop

anil

(Sta

m (M

-4) +

3.0

carb

aryl

+0.

1th

iobe

nca

rb3.

0E

PO

ST

4511

00

6407

Prop

anil

(Sta

m M

-4) +

3.0

pendi

met

hal

in1.

0E

PO

ST

1510

41

6482

Prop

anil

(Sta

m 8

0ED

F) +

3.0

pendi

met

hal

in +

1.0

AG

-98 (0

.25%

)E

PO

ST

158

00

6836

Prop

anil

(Supe

r W

ham

) +3.

0pe

ndi

met

hal

in +

1.0

Agr

i-D

ex (1

%)

EPO

ST

166

00

6561

(Pro

panil

+ m

olin

ate)

+4.

5pe

ndi

met

hal

in1.

0E

PO

ST

1510

30

6021

Prop

anil

(Sta

m M

-4) +

3.0

carb

aryl

+0.

1pe

ndi

met

hal

in1.

0E

PO

ST

6523

43

6011

Prop

anil

(Sta

m M

-4) +

2.0

quin

clor

ac0.

125

EPO

ST

108

10

6589

Prop

anil

(Sta

m 8

0ED

F) +

2.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)E

PO

ST

84

10

6873

Prop

anil

(Supe

r W

ham

) +2.

0qu

incl

orac

+0.

125

Agr

i-D

ex (1

%)

EPO

ST

95

10

6666 co

nti

nued

AAES RESEARCH SERIES 462

42

Tab

le 7

. Sec

tion

2.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/10

6/18

7/1

7/15

yiel

d(lb

/A)

(%)

(lb/A

)

(Pro

panil

+ m

olin

ate)

+3.

0qu

incl

orac

0.12

5E

PO

ST

115

00

6622

Prop

anil

(Sta

m M

-4) +

2.0

carb

aryl

+0.

1qu

incl

orac

0.12

5E

PO

ST

3810

30

6567

Prop

anil

(Sta

m M

-4) +

2.0

quin

clor

ac0.

25E

PO

ST

149

10

6580

Prop

anil

(Sta

m 8

0ED

F) +

2.0

quin

clor

ac +

0.25

AG

-98 (0

.25%

)E

PO

ST

51

10

6620

Prop

anil

(Supe

r W

ham

) +2.

0qu

incl

orac

+0.

25A

gri-D

ex (1

%)

EPO

ST

104

00

6858

(Pro

panil

+ m

olin

ate)

+3.

0qu

incl

orac

0.25

EPO

ST

115

00

6402

Prop

anil

(Sta

m M

-4) +

2.0

carb

aryl

+0.

1qu

incl

orac

0.25

EPO

ST

4315

30

6445

LSD

(0.0

5)

86

62

883

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

43

Tab

le 8

. Com

pari

son o

f m

icro

enca

psula

ted

form

ula

tion

s of

pen

dim

ethal

in (P

row

l) fo

r w

eed

contr

ol in r

ice,

Stu

ttga

rt.

TEST INFO

RM

ATIO

N

Loca

tion

...................................................................................

Stu

ttga

rtPl

antin

g da

te....................................................

...........M

ay 1

2, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

.................................................

RC

B /

4H

arve

st d

ate

.....................................................

Sep

tem

ber

10, 1

997

Plo

t si

ze.........................................................................6

ft b

y 16

ftC

rop/

Var

iety

....................................................

.........R

ice/

Kay

bonnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot........................................

7 in

/ 9

row

sD

ate

of F

lush

ing

June

28, J

uly

4, J

uly

8, J

uly

16,

Soi

l typ

e.............................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)Ju

ly 2

1 an

d Ju

ly 2

5, 1

997

% O

M /

pH

..............

..................................................

..........

1.3

/ 5.

5D

ate

of F

lood

....................................................

..........

July

28,

199

7

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

.App

licat

ion typ

eD

PR

ED

ate

appl

ied

July

1, 1

997

Tim

e5:

30 p

mIn

corp

orat

ion e

quip

men

tN/

AAir/S

oil t

empe

ratu

re (F

)87

/ 9

0R

elat

ive

hum

idity

(%)

80W

ind

(mph

, direc

tion)

4W

eath

erm

ostly

cle

arSoi

l moi

sture

wet

Cro

p st

age/

Hei

ght

rad.

/ 0

.5"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

Gpa

/ P

si15

/ 2

8C

oncl

usi

ons:

Stu

die

s w

ere

conduct

ed to

eval

uat

e m

icro

enca

psu

late

d (M

E) f

orm

ula

tion

s of

pen

dim

ethal

in (P

row

l) fo

r m

ixin

g an

d s

pra

ying

qual

itie

s an

d fo

r w

eed

contr

ol a

s co

mpar

ed t

o th

e E

C for

mu

lation

. H

erbic

idal

act

ivity

of t

he

ME

for

mu

lation

s w

as c

ompar

able

to

the

EC

for

mu

lation

. Som

e diff

eren

ces

in y

ield

wer

eob

serv

ed, w

ith the

EC

form

ula

tion

and

AC

-166

,773

hav

ing

the

hig

hes

t yi

elds

with n

o si

gnifi

cant di

ffere

nce

bet

wee

n them

. Mix

ing

qual

itie

s of

all

ME

form

ula

tion

sw

ere

exce

llent an

d th

e sp

ray

solu

tion d

id n

ot s

tain

the

tank

or e

quip

men

t.

AAES RESEARCH SERIES 462

44

Tab

le 8

.W

eed

contr

olR

esis

tant ba

rnya

rdgr

ass

Bar

nya

rdgr

ass

Ric

e fla

tsed

geApp

licat

ion

(R-E

CH

CG

)(E

CH

CG

)(C

YPIR

)R

ice

inju

ryYie

ldH

erbi

cide

Rat

etim

ing

7/8

7/29

8/21

7/8

7/29

8/21

7/8

7/8

7/29

8/21

10/1

7(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

00

00

4063

Pendi

met

hal

in (3

.3 E

C)

1.0

DPR

E91

9489

9191

9193

00

060

3997

AC

-166

,746

1.0

DPR

E91

9184

9094

8884

00

049

3097

AC

-513

,981

1.0

DPR

E90

9184

9191

8574

00

049

0397

AC

-513

,982

1.0

DPR

E93

9590

9196

8975

00

048

9797

AC

-166

,747

1.0

DPR

E93

9893

9396

9491

00

054

3197

AC

-166

,773

1.0

DPR

E94

9691

9095

9094

00

057

52

LSD

(0.0

5)

36

84

69

11N

SN

SN

S37

1

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

45

Tab

le 9

. Yie

ld s

tudy

for

hal

osulfuro

n in

ric

e, S

tutt

gart

.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te................................................

.............

May

8, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

.............................................

RC

B /

5H

arve

st d

ate

.........................................................A

ugu

st 1

0, 1

997

Plo

t si

ze....................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..................................................

.......

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................7

in /

9 row

sD

ate

of F

lush

ing

.......................................

May

17

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

................................................

...........J

une

17, 1

997

% O

M /

pH

............

..................................................

.......1.

3 /

5.5

Com

men

ts: P

RE

= p

reem

erge

nce

; EPO

ST =

earl

y pos

tem

erge

nce

; MPO

ST =

mid

pos

tem

erge

nce

; and P

OFL

= pos

tflo

od.

App

licat

ion typ

ePR

EE

PO

ST

MPO

ST

PO

FL

Dat

e ap

plie

dM

ay 8

, 199

7M

ay 2

8, 1

997

June

3, 1

997

June

18, 1

997

Tim

e6:

00 p

m3:

00 p

m5:

00 p

m5:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)81

/ 7

971

/ 7

771

/ 8

186

/ 8

8R

elat

ive

hum

idity

(%)

8378

8965

Win

d (m

ph, d

irec

tion)

34

32

Wea

ther

part

ly c

loudy

could

ypa

rtly

clo

udy

mos

tly c

lear

Soi

l moi

sture

moi

stw

etm

oist

wet

Cro

p st

age/

Hei

ght

N/A

2-3

lf /

5"3-

4 lf

/ 7"

5-6

lf /

10"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15Te

ejet

/ X

R11

0015

Teej

et /

XR

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 4

015

/ 2

815

/ 2

815

/ 2

8C

oncl

usi

ons:

Hal

osu

lfuro

n w

as e

valu

ated

for

its

effe

ct o

n r

ice

yiel

d. Q

uin

clor

ac a

t 0.3

8 lb

/A w

as a

pplie

d D

PR

E to

contr

ol g

rass

es a

nd b

road

leav

es e

arly

in the

exper

imen

t. Inju

ry o

f up to

15%

was

obse

rved

as

grow

th r

edu

ctio

n in

ric

e at

all

hal

osulfu

ron r

ates

and tim

ings

. The

rice

rec

over

ed fr

om h

alos

ulfu

ron in

jury

and

ther

e w

as n

o si

gnifi

cant re

duct

ion in

yie

ld.

AAES RESEARCH SERIES 462

46

Tab

le 9

.R

ice

App

licat

ion

Ric

e in

jury

Stunt

ing

yiel

dH

erbi

cide

Rat

etim

ing

6/3

6/18

6/23

7/1

7/8

7/15

6/3

6/18

6/23

7/1

7/8

7/15

8/10

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

20

7132

Hal

osulfu

ron

0.06

2PR

E8

20

00

013

115

74

169

50H

alos

ulfu

ron

0.12

4PR

E5

00

00

06

41

71

074

22H

alos

ulfu

ron +

0.06

2In

duce

(0.2

5%)

EPO

ST

31

00

00

105

79

10

7651

Hal

osulfu

ron +

0.12

4In

duce

(0.2

5%)

EPO

ST

42

00

00

1415

811

40

7296

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%)

MPO

ST

30

00

016

86

30

6947

Hal

osulfu

ron +

0.12

4In

duce

(0.2

5%)

MPO

ST

10

00

04

02

20

7831

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%)

PO

FL

00

00

16

20

7556

Hal

osulfu

ron +

0.12

4In

duce

(0.2

5%)

PO

FL

00

00

124

10

6719

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%) f

bE

PO

ST

hal

osulfu

ron +

0.04

7In

duce

(0.2

5%)

MPO

ST

21

00

00

1213

711

10

7244

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%) f

bE

PO

ST

hal

osulfu

ron +

0.06

2In

duce

(0.2

5%)

PO

FL

74

00

00

1613

1011

30

6938

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%) f

bM

PO

ST

hal

osulfu

ron +

0.04

7In

duce

(0.2

5%)

PO

FL

10

00

01

22

20

7094

LSD

(0.0

5%

)N

SN

SN

SN

SN

SN

S5

76

5N

SN

SN

S

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

47

Tab

le 1

0.

Eva

luat

ion o

f F8426 a

pplied

EPO

ST t

o w

ater

-see

ded

rice

at

two

floo

d de

pths,

Stu

ttga

rt.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te...........................................................

May

12,

199

7E

xper

imen

tal D

esig

n /

rep

licat

ions

.............................................

RC

B /

4H

arve

st d

ate

................................................

.........................

N/A

Plo

t si

ze.....................................................................6

ft by

16

ftC

rop/

Var

iety

.........................................................

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................7

in /

9 row

sD

ate

of F

lush

ing

......................................

May

20

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

..........................................................

June

18, 1

997

% O

M /

pH

..............

..................................................

......

1.3

/ 5.

5

Com

men

ts: P

OFL

= po

stflo

od a

nd

POFL2

= s

econ

d po

stflo

od a

pplic

atio

n.

App

licat

ion typ

ePO

FL

PO

FL2

Dat

e ap

plie

dJu

ly 1

, 199

7Ju

ly 8

, 199

7Ti

me

5:30

pm

1:00

pm

Inco

rpor

atio

n e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)87

/ 8

686

/ 8

4R

elat

ive

hum

idity

(%)

8081

Win

d (m

ph, d

irec

tion)

44

Wea

ther

mos

tly c

lear

mos

tly c

lear

Soi

l moi

sture

flood

edflo

oded

Cro

p st

age/

Hei

ght

6-9

lf /

18"

8-9

lf /

24"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)SE

BE

X6-

8 lf

/ 15

"9-

lf /

17"

IPO

WR

9-10

lf /

12"

10 lf

/ 1

3"C

YPE

S7-

8 lf

/ 16

"8-

9 lf

/ 17

"C

on

clu

sio

ns:

Co

nclu

sio

ns:

Co

nclu

sio

ns:

Co

nclu

sio

ns:

Co

nclu

sio

ns: F

-8426 (c

arfe

ntra

zone

) pro

vide

d ex

celle

nt c

ontr

ol o

f pal

mle

af m

orni

nggl

ory,

yel

low

nut

sedg

e, a

nd h

emp

sesb

ania

at a

rate

rang

e of

0.0

25 to

0.1

5 lb

/A

. Slig

ht p

hyto

toxi

city

to ri

ce o

ccur

red

early

follo

win

g ap

plic

atio

n, b

ut th

e ric

e re

cove

red

4 w

eeks

aft

er tr

eatm

ent.

Little

if an

y st

and

redu

ctio

n oc

curr

ed fr

om a

ny o

f the

trea

tmen

ts o

f F-8

426, a

nd o

nly

4 to

16%

stu

ntin

g w

as o

bser

ved.

AAES RESEARCH SERIES 462

48

Tab

le 1

0.

Pal

mle

afYel

low

Hem

pE

ffect

on r

ice

mor

nin

gglo

rynuts

edge

sesb

ania

Sta

nd

App

licat

ion

(IPO

WR

)(C

YPE

S)

(SE

BE

X)

Inju

ryre

duct

ion

Stunt

ing

Her

bici

deR

ate

timin

g7/

158/

137/

158/

137/

158/

137/

298/

137/

298/

137/

298/

138/

21(lb

/A)

(%)

1-inch

flo

od:

Untr

eate

d ch

eck

00

00

00

00

00

00

0F8

426-

20.

025

PO

FL

9594

9495

7588

60

10

03

10F8

426-

20.

05PO

FL

9594

9385

9493

110

00

04

16F8

426-

20.

075

PO

FL

9595

9495

9594

130

01

05

16F8

426-

20.

1PO

FL

9595

9393

9595

150

41

04

11F8

426-

20.

15PO

FL

9595

9395

9595

140

41

04

13

3-inch

flo

od:

Untr

eate

d ch

eck

00

00

00

00

00

00

0F8

426-

20.

025

PO

FL2

9595

9395

9595

60

03

05

5F8

426-

20.

05PO

FL2

9595

9595

9595

80

00

06

10F8

426-

20.

075

PO

FL2

9595

9494

9595

90

01

05

4F8

426-

20.

1PO

FL2

9595

9395

9595

160

00

08

14F8

426-

20.

15PO

FL2

9595

9391

9595

160

30

05

5

LSD

(0.0

5)

12

45

95

5N

S2

NS

NS

26

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

49

Tab

le 1

1.

Eva

luat

ion o

f F-8

426 4

0 E

DF a

lone

and

in c

ombi

nat

ion w

ith v

ario

us

her

bici

des,

Stu

ttga

rt.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te................................................

...........

May

12,

199

7E

xper

imen

tal D

esig

n /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

..................................................

Sep

tem

ber

11, 1

997

Plo

t si

ze......................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..................................................

.......

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................7

in /

9 row

sD

ate

of F

lush

..........................................

May

20

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

................................................

.........

June

19, 1

997

% O

M /

pH

..............

..................................................

......

1.3

/ 5.

5

Com

men

ts: L

PO

ST =

late

pos

tem

erge

nce

.App

licat

ion typ

eLPO

ST

Dat

e ap

plie

dJu

ne

18, 1

997

Tim

e6:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AAir/S

oil t

empe

ratu

re (F

)86

/ 8

8R

elat

ive

hum

idity

(%)

65W

ind

(mph

, direc

tion)

2W

eath

erm

ostly

clea

rSoi

l moi

sture

moi

stC

rop

stag

e/H

eigh

t4-

5 lf

/ 9"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

Gpa

/ P

si15

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)SE

BE

X5

lf /

5"C

YPE

S3-

4 lf

/ 2.

4"C

oncl

usi

ons:

F-8

426 (c

arfe

ntr

azon

e) w

as e

valu

ated

alo

ne

and in

com

bin

atio

n w

ith p

ropan

il an

d b

ensu

lfuro

n fo

r co

ntr

ol o

f hem

p s

esban

ia a

nd y

ello

w n

uts

edge

.All

rate

s of

F-8

426

alon

e an

d in

tan

k m

ixes

con

trol

led

hem

p se

sban

ia >

95%

. Con

trol

of y

ello

w n

uts

edge

ran

ged

from

fair

(68%

) with

F-8

426

alon

e at

0.0

1 lb

ai/

A to

good

(93%

) with

F-8

426

at 0

.02

lb a

i/A +

ben

sulfu

ron a

t 0.

06 lb

ai/

A. N

o si

gnifi

cant st

and

redu

ctio

n o

r st

untin

g w

as o

bser

ved

with

any

F-8

426

trea

tmen

t, a

nd

yiel

dsdi

d not

diff

er s

ignifi

cantly

am

ong

trea

tmen

ts.

AAES RESEARCH SERIES 462

50

Tab

le 1

1.

Wee

d co

ntr

olE

ffect

on r

ice

Hem

p se

sban

iaYel

low

nuts

edge

Sta

nd

Stunt

-App

licat

ion

(SE

BE

X)

(CY

PE

S)

Inju

ryre

duct

ion

ing

Yie

ldH

erbi

cide

Rat

etim

ing

6/23

7/1

7/7

7/29

6/23

7/1

7/7

7/29

6/23

7/1

7/7

7/29

7/29

9/11

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

00

064

59F-8

426

+0.

005

X-7

7 (0

.25%

)LPO

ST

8895

9599

6379

7873

00

00

071

60F-8

426

+0.

01X

-77

(0.2

5%)

LPO

ST

9495

9598

6678

7868

00

00

066

70F-8

426

+0.

02X

-77

(0.2

5%)

LPO

ST

9595

9598

6983

8380

00

00

069

51F-8

426

+0.

03X

-77

(0.2

5%)

LPO

ST

9595

9599

6888

8483

00

00

066

56F-

8426

+ p

ropa

nil

0.02

(Sta

m M

-4)

1.0

LPO

ST

9595

9599

7485

8479

00

00

071

05F-

8426

+ p

ropa

nil

0.02

(Sta

m M

-4)

2.0

LPO

ST

9595

9599

8390

9386

10

11

069

54F-

8426

+ p

ropa

nil

0.02

(Sta

m M

-4)

4.0

LPO

ST

9595

9599

7990

9491

10

00

072

97F-8

426

+0.

02be

nsu

lfuro

n +

0.01

5X

-77

(0.2

5%)

LPO

ST

9594

9495

7589

9185

01

10

065

55F-8

426

+0.

02be

nsu

lfuro

n +

0.03

X-7

7 (0

.25%

)LPO

ST

9494

9498

7189

9491

10

00

073

83F-8

426

+0.

02be

nsu

lfuro

n +

0.06

X-7

7 (0

.25%

)LPO

ST

9595

9510

068

9095

931

11

00

7044

Thio

benca

rb4.

0LPO

ST

5594

8991

6190

9086

10

00

065

65(P

ropa

nil

+ m

olin

ate)

6.0

LPO

ST

9395

9510

085

8485

853

00

00

7105

Prop

anil

(Sta

m M

-4)

4.0

LPO

ST

8995

9510

086

8993

891

00

00

6516

Quin

clor

ac +

0.38

Agr

i-D

ex (1

%)

LPO

ST

7495

9599

5588

7980

03

30

167

09Tr

iclo

pyr

+0.

22X

-77

(0.2

5%)

LPO

ST

7091

9093

6984

8570

2115

90

1169

34LS

D (0

.05)

63

56

118

1113

23

2N

S2

NS

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

51

Tab

le 1

2.

Wee

d c

ontr

ol w

ith q

uin

clor

ac (F

acet

) for

mula

tion

s (g

ranule

and d

ry flo

wab

le) a

t va

riou

s ti

min

gsan

d su

itab

ility

of pe

ndi

met

hal

in a

s a

quin

clor

ac p

artn

er for

wee

d co

ntr

ol in

ric

e, S

tutt

gart

.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te................................................

..............

May

8, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

....................................................

Sep

tem

ber

10, 1

997

Plo

t si

ze......................................................................

6 ft

by 1

6 ft

Cro

p/Var

iety

..........................................................

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.....................................

7 in

/ 9

row

sD

ate

of F

lush

............................................

May

17

and

June

7, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)D

ate

of F

lood

................................................

...........

June

16, 1

997

% O

M /

pH

............

..................................................

........

1.3

/ 5.

5

Com

men

ts:

PR

E =

pre

emer

gen

ce; D

PR

E =

del

ayed

pre

emer

gen

ce; E

PO

ST =

ear

ly p

oste

mer

gen

ce; LPO

ST =

lat

e pos

tem

erge

nce

; G

R =

gra

nu

les;

DF =

dry

flow

able

; and

EC

= e

muls

ifiab

le c

once

ntr

ate.

Quin

clor

ac fo

rmula

tion

s w

ere

1.5%

gra

nule

s an

d a

75%

DF. P

endi

met

hal

in fo

rmula

tion

s w

ere

a 60

% D

F (P

enta

gon)

and a

3.3

EC

(Pro

wl).

App

licat

ion typ

ePR

ED

PR

EE

PO

ST

LPO

ST

Dat

e ap

plie

dM

ay 8

, 199

7M

ay 1

3, 1

997

May

28,

199

7Ju

ne

10, 1

997

Tim

e5:

00 p

m6:

00 p

m3:

00 p

m6:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)77

/ 7

875

/ 7

671

/ 7

768

/ 7

5R

elat

ive

hum

idity

(%)

8365

7875

Win

d (m

ph, d

irec

tion)

32

44

Wea

ther

part

ly c

loudy

clea

rcl

oudy

clou

dySoi

l moi

sture

moi

stm

oist

wet

moi

stC

rop

stag

e/H

eigh

tN/

AN/

A2-

3 lf

/ 5"

4-5

lf /

8"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eTe

ejet

/ X

R11

0015

Teej

et /

XR

1100

15Te

ejet

/ X

R11

0015

Teej

et /

XR

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

16 /

3 /

20

Gpa

/ P

si15

/ 2

815

/ 2

815

/ 2

815

/ 2

8W

eed s

pec

ies

(hei

ght /

# le

aves

)E

CH

CG

N/A

N/A

2-3

lf /

0.5"

4-6

lf /

3"R

-EC

HC

GN/

AN/

A2-

3 lf

/ 0.

75"

4-6

lf /

3.5"

AAES RESEARCH SERIES 462

52

Con

clusi

ons:

The

G a

nd

DF fo

rmula

tion

s of

quin

clor

ac w

ere

com

pare

d at

0.3

8 lb

/A, t

he

stan

dard

rat

e fo

r a

silt lo

am s

oil.

No

diffe

rence

s w

ere

obse

rved

by

July

1in

res

ista

nt-

and

susc

eptibl

e-ba

rnya

rdgr

ass

contr

ol a

t th

e PR

E, D

PRE

and

EPO

ST

tim

ings

. Als

o, ther

e w

as n

o ra

te r

espo

nse

in b

arnya

rdgr

ass

activi

ty o

f gra

nula

rqu

incl

orac

at 0.

25 to

0.5

lb/A

. In e

valu

atin

g th

e 60

DF fo

rmula

tion

of p

endi

met

hal

in a

s a

tank-

mix

par

tner

with q

uin

clor

ac (D

F),

no

sign

ifica

nt di

ffere

nce

s in

wee

dco

ntr

ol o

r yi

eld w

ere

fou

nd a

t an

y ra

te o

r ap

plic

atio

n t

imin

g by

mid

-sea

son r

atin

gs o

n J

uly

29. N

o yi

eld d

iffer

ence

s oc

curr

ed b

etw

een t

he

60 D

F a

nd 3

.3 E

Cfo

rmula

tions

of p

endi

met

hal

in ta

nk-

mix

ed w

ith q

uin

clor

ac (D

F) a

t 0.3

8 or

0.5

lb/A

.

Tab

le 1

2.

Wee

d co

ntr

olR

esis

tant ba

rnya

rdgr

ass

B

arnya

rdgr

ass

Ric

eR

ice

App

licat

ion

(R-E

CH

CG

)

(EC

HC

G)

inju

ryyi

eld

Her

bici

deR

ate

timin

g6/

46/

236/

187/

17/

296/

46/

236/

187/

17/

296/

46/

186/

238/

10(lb

/A)

(%)

(lb/A

)

Blo

ck 1

Untr

eate

d ch

eck

00

00

00

00

00

00

057

98Q

uin

clor

ac (1

.5 G

R)

0.25

PR

E94

9488

100

9594

9489

100

959

00

6733

Quin

clor

ac (1

.5 G

R)

0.38

PR

E96

9594

100

9696

9594

100

9913

01

7090

Quin

clor

ac (1

.5 G

R)

0.5

PR

E96

9595

100

9996

9595

100

9814

44

6398

Quin

clor

ac (7

5 D

F)

0.38

PR

E96

9594

100

9696

9595

100

9615

33

6992

Quin

clor

ac (1

.5 G

R)

0.25

DPR

E94

9090

100

9495

9393

100

945

00

7089

Quin

clor

ac (1

.5 G

R)

0.38

DPR

E95

9393

9994

9593

9399

9313

11

6476

Quin

clor

ac (1

.5 G

R)

0.5

DPR

E95

9393

100

9895

9595

100

9818

34

6416

Quin

clor

ac (7

5 D

F)

0.38

DPR

E96

9594

100

9996

9594

100

968

00

7104

Quin

clor

ac (1

.5 G

R)

0.25

EPO

ST

5880

7610

094

5885

8110

091

40

069

51Q

uin

clor

ac (1

.5 G

R)

0.38

EPO

ST

7993

9010

095

8194

9010

096

90

064

29Q

uin

clor

ac (1

.5 G

R)

0.5

EPO

ST

6594

9310

098

7094

9310

098

50

070

40Q

uin

clor

ac (7

5 D

F)

0.38

+ A

gri-D

ex (1

%)

EPO

ST

9195

9510

099

9395

9510

098

80

070

19

Blo

ck 2

Untr

eate

d ch

eck

00

00

00

00

00

00

051

07Q

uin

clor

ac (7

5 D

F)

0.38

+ pe

ndi

met

hal

in(6

0 D

F)

1.0

DPR

E96

9595

100

9596

9595

100

9516

00

6254 co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

53

Tab

le 1

2. C

onti

nued

.W

eed

contr

olR

esis

tant ba

rnya

rdgr

ass

B

arnya

rdgr

ass

Ric

eR

ice

App

licat

ion

(R-E

CH

CG

)

(EC

HC

G)

inju

ryyi

eld

Her

bici

deR

ate

timin

g6/

46/

236/

187/

17/

296/

46/

236/

187/

17/

296/

46/

186/

238/

10(lb

/A)

(%)

(lb/A

)

Blo

ck 2

. C

onti

nued

.Q

uin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(6

0 D

F)

1.0

EPO

ST

9595

9510

099

9595

9510

010

011

00

6156

Quin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(6

0 D

F)

1.0

LPO

ST

086

7410

099

089

7610

096

100

065

32Q

uin

clor

ac (7

5 D

F)

0.38

+ pe

ndi

met

hal

in(3

.3 E

C)

1.0

DPR

E95

9595

100

9595

9595

100

9814

00

6704

Quin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(3

.3 E

C) +

1.0

Agr

i-D

ex (1

%)

EPO

ST

9595

9510

098

9595

9510

095

130

059

68Q

uin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(3

.3 E

C) +

1.0

Agr

i-D

ex (1

%)

LPO

ST

094

7810

098

095

8010

098

00

066

05

LSD

(0.0

5)

45

81

54

47

15

4N

SN

S93

8

AAES RESEARCH SERIES 462

54

Tab

le 1

2. C

onti

nued

.W

eed

contr

olR

esis

tant ba

rnya

rdgr

ass

B

arnya

rdgr

ass

Ric

eR

ice

App

licat

ion

(R-E

CH

CG

)

(EC

HC

G)

inju

ryyi

eld

Her

bici

deR

ate

timin

g6/

46/

236/

187/

17/

296/

46/

236/

187/

17/

296/

46/

186/

238/

10(lb

/A)

(%)

(lb/A

)

Blo

ck 2

. C

onti

nued

.Q

uin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(6

0 D

F)

1.0

EPO

ST

9595

9510

099

9595

9510

010

011

00

6156

Quin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(6

0 D

F)

1.0

LPO

ST

086

7410

099

089

7610

096

100

065

32Q

uin

clor

ac (7

5 D

F)

0.38

+ pe

ndi

met

hal

in(3

.3 E

C)

1.0

DPR

E95

9595

100

9595

9595

100

9814

00

6704

Quin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(3

.3 E

C) +

1.0

Agr

i-D

ex (1

%)

EPO

ST

9595

9510

098

9595

9510

095

130

059

68Q

uin

clor

ac (7

5 D

F)

0.5

+ pe

ndi

met

hal

in(3

.3 E

C) +

1.0

Agr

i-D

ex (1

%)

LPO

ST

094

7810

098

095

8010

098

00

066

05

LSD

(0.0

5)

45

81

54

47

15

4N

SN

S93

8

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

55

Tab

le 1

3. S

usc

epti

bility

of re

d ri

ce b

ioty

pes

to im

azet

hap

yr (P

urs

uit

) in fie

ld s

tudi

es, S

tutt

gart

.

TEST INFO

RM

ATIO

N

Loca

tion

................................................................................

Stu

ttga

rtPl

antin

g da

te...........................................................

May

19,

199

7E

xper

imen

tal D

esig

n /

rep

licat

ions

........................................

Spl

it Pl

ot /

3H

arve

st d

ate

................

Sep

tem

ber

17-1

9, 1

997

and

Oct

ober

2, 1

997

Plo

t si

ze......................................................................

4.5

by 2

ft.

Cro

p/Var

iety

.........................................re

d ri

ce a

nd

Kay

bonnet

ric

eN

um

ber

of r

ows

per

plot

.....................................................................

1D

ate

of F

lood

.............................................................J

uly

9, 1

997

Soi

l typ

e..........................

Cro

wle

y si

lt lo

am (8

% s

and,

75%

silt

, 16%

cla

y)%

OM

/ p

H..............

..................................................

.......1

.3 /

5.5

Com

men

ts:

Plo

ts n

ot tre

ated

with

imaz

ethap

yr (d

esig

nat

ed “untr

eate

d” in

Tab

le) w

ere

trea

ted

June

20 w

ith p

ropa

nil,

0.5

lb a

i/A +

ben

tazo

n, 0

.75

lb a

i/A.

Imaz

ethap

yr (P

urs

uit) w

as a

pplie

d at

0.0

625

lb a

i/A (1

X) a

nd

0.12

5 lb

/A (2

X).

POST

= po

stem

erge

nce

.App

licat

ion typ

ePO

ST (P

urs

uit)

PO

ST (n

o Pu

rsu

it)

Dat

e ap

plie

d6/

10/9

76/

20/9

7Ti

me

N/A

N/A

Inco

rpor

atio

n e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)N/

AN/

AR

elat

ive

hum

idity

(%)

N/A

N/A

Win

d (m

ph, d

irec

tion)

5 /

north

10 /

sou

thw

est

Wea

ther

clou

dycl

oudy

Soi

l moi

sture

very

wet

wet

Cro

p st

age/

Hei

ght (in

.)3-

4 lf

/ 5-

7"Spr

ayer

type

/mph

CO

2 Bac

kpac

kC

O2 B

ackp

ack

Noz

zle

type/

Siz

eFl

at fa

n /

800

1Fl

at fa

n /

800

1B

oom

ht /

# N

oz /

Spa

cing

(in.)

20 /

3 /

20

20 /

11

/ 20

Gpa

/ P

si10

/ 2

310

/ 2

5W

eed s

pec

ies

OR

YS

A3-

4 lf

/ 6-

9"C

oncl

usi

ons:

Bro

ad d

iffer

ence

s in

gro

wth

and

deve

lopm

ent pa

tter

ns

and

min

or d

iffer

ence

s in

her

bici

de s

usc

eptibi

lity

wer

e fo

und

amon

g th

e 52

red

ric

e bi

otyp

es.

Imaz

ethap

yr p

rovi

ded

nea

rly

100%

con

trol

of m

ost bi

otyp

es o

f red

ric

e at

0.1

25 lb

/A a

nd

mor

e th

an 9

5% c

ontr

ol a

t 0.

063

lb/A

. The

bla

ckhull

biot

ypes

199

5-8

and

1995-1

0 w

ere

mar

ginal

ly, b

ut si

gnifi

cantly,

mor

e to

lera

nt th

an a

ll ot

her

bio

types

to

0.0

63 lb

/A im

azet

hap

yr, p

rodu

cing

15 a

nd 6

%, r

espec

tive

ly, o

f the

bio

mas

spr

oduce

d by

untr

eate

d pl

ants

. Thes

e pl

ants

did

not

pro

duce

see

d an

d w

ere

too

smal

l to

be c

ompe

titive

. Fou

rtee

n o

ther

bio

type

s al

so s

urv

ived

and

regr

ew fr

om the

inju

ry a

t th

e lo

wer

her

bic

ide

rate

to

pro

du

ce a

sm

all a

mou

nt of

bio

mas

s. In

all, 4

4%

of al

l bla

ckhu

lls a

nd 2

5%

of al

l str

awhu

lls h

ad s

ome

surv

ival

, sug

gest

ing

that

the

blac

khul

l typ

es a

s a

grou

p m

ay b

e so

mew

hat

mor

e to

lera

nt t

o im

azet

hapy

r.

AAES RESEARCH SERIES 462

56

Tab

le 1

3.

Red

ric

e co

ntr

olFi

nal

pla

nt h

eigh

t7/

18/9

79/

15/9

7To

tal p

lant bi

omas

sB

ioty

pe1X

Purs

uit

2X

Purs

uit

Untr

eate

d1X

Purs

uit

2X P

urs

uit

Untr

eate

d1X

Purs

uit

2X P

urs

uit

(%)

(cm

)(%

UTC

)(k

g/m

of r

ow)

(% U

TC

)

Bla

ckhull

type

sStg

B97

9915

20

01.

680

010

A10

010

015

40

01.

460

017

C10

010

013

60

01.

050

018

E99

100

144

360

1.00

10

1995

-198

100

130

440

0.86

10

1995

-10

8810

018

164

01.

336

019

95-1

310

010

096

00

0.98

00

1995

-410

010

012

90

00.

510

019

95-8

9010

013

449

00.

9515

019

95-9

9598

170

00

1.34

00

1996

-11

9810

015

042

01.

242

019

97-1

9810

012

00

00.

970

019

97-2

797

100

151

470

1.37

20

19A

100

100

162

00

1.32

00

810

010

014

70

01.

300

0TX

497

100

158

380

1.36

20

Str

awhull

type

sStg

S99

100

147

640

1.24

10

11A

100

100

155

00

1.07

00

11B

100

100

147

00

1.23

00

11C

100

100

147

00

0.37

00

11D

100

9915

10

01.

080

013

G10

010

014

20

01.

330

013

H10

099

980

00.

650

015

A10

099

137

00

1.25

00

16B

100

100

148

00

1.43

00 co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

57

Tab

le 1

3. C

onti

nued

.R

ed r

ice

contr

olFi

nal

pla

nt h

eigh

t7/

18/9

79/

15/9

7To

tal p

lant bi

omas

sB

ioty

pe1X

Purs

uit

2X P

urs

uit

Untr

eate

d1X

Purs

uit

2X P

urs

uit

Untr

eate

d1X

Purs

uit

2X P

urs

uit

(%)

(cm

)(%

UTC

)(k

g/m

of r

ow)

(% U

TC

)16

E96

100

153

400

1.38

20

17A

9910

014

00

01.

390

019

95-1

110

010

013

80

01.

070

019

95-1

299

100

150

00

1.48

00

1995

-15

9910

016

20

01.

280

019

95-2

100

100

131

00

0.83

00

1995

-310

010

014

90

01.

590

019

95-5

100

100

140

00

1.15

00

1995

-610

010

014

10

01.

250

019

95-7

9710

014

40

01.

090

0K

aty-

RR

hyb

rid

100

100

118

00

0.98

00

1996

-10

100

100

146

00

1.24

00

1997

-310

010

013

90

01.

250

019

97-2

210

010

015

30

01.

210

019

97-2

310

010

015

30

01.

460

019

97-2

498

100

150

00

1.29

00

1997

-25

100

100

147

00

1.33

00

1997

-26

100

100

149

00

1.18

00

1997

-28

9910

014

60

01.

290

020

A98

100

155

00

1.25

00

21A

100

100

138

00

1.24

00

2B95

100

149

390

1.31

10

3B10

010

015

20

00.

960

04A

9310

014

542

01.

153

07

9710

015

555

01.

113

0LA

398

100

148

420

1.31

30

MS4

100

100

140

390

1.07

10

Whit

e ty

pes

Kay

bonnet

100

9910

90

00.

740

0PI

414

714

100

100

121

00

0.81

00

LSD

(0.0

5)

415

51N

S0.

304

NS

AAES RESEARCH SERIES 462

58

Tab

le 1

4. I

nfluence

of f

loodin

g o

n the p

erf

orm

ance

of h

erb

icid

es

and g

row

th o

f ric

e a

nd re

d ri

ce, S

tutt

gar

t.Tab

le 1

4. I

nfluence

of f

loodin

g o

n the p

erf

orm

ance

of h

erb

icid

es

and g

row

th o

f ric

e a

nd re

d ri

ce, S

tutt

gar

t.Tab

le 1

4. I

nfluence

of f

loodin

g o

n the p

erf

orm

ance

of h

erb

icid

es

and g

row

th o

f ric

e a

nd re

d ri

ce, S

tutt

gar

t.Tab

le 1

4. I

nfluence

of f

loodin

g o

n the p

erf

orm

ance

of h

erb

icid

es

and g

row

th o

f ric

e a

nd re

d ri

ce, S

tutt

gar

t.Tab

le 1

4. I

nfluence

of f

loodin

g o

n the p

erf

orm

ance

of h

erb

icid

es

and g

row

th o

f ric

e a

nd re

d ri

ce, S

tutt

gar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.....................................................................................S

tutt

gart

Plan

ting

dat

eEx

perim

enta

l Des

ign

/ re

plic

atio

ns..........................................

Split

Plo

t / 4

Red

rice

...............................................................Ju

ne 3

, 1997

Plot si

ze.......................................................................6.6

by

9.9

ft.

Dom

estic

rice

.......................................................Ju

ne 6

, 1997

Num

ber o

f row

s pe

r plo

t............................................................

broa

dcas

tHar

vest

dat

e..........................................................

Oct

ober

31, 1

997

Soil t

ype

...........................C

row

ley

silt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)Cr

op/V

arie

ty.........................................Red

Ric

e an

d K

aybonn

et ri

ce%

OM

/ p

H..........................................................................

1.3

/ 5

.5D

ate

of F

lood

...............................................................Ju

ne 5

, 1997

Dat

e of

dra

inin

g pi

npoi

nt fl

ood

.....................................Ju

ne 1

5, 1

997

Com

men

ts:

Plo

ts w

ere

tille

d w

ith T

riple

-K b

efor

e pla

nting.

Red

ric

e se

eds

wer

e bro

adca

st s

eeded

at

24 lb

/A. D

omes

tic

rice

see

ds

wer

e so

aked

for

24 h

and

dra

ined

for

24 h

bef

ore

bro

adca

st-s

eedin

g. D

omes

tic

rice

yie

ld w

as a

dju

sted

to

12%

moi

stu

re c

onte

nt. P

PI =

pre

pla

nt in

corp

orat

ed; P

PL

= pre

pla

nt (p

rior

to

flood

and

rice

pla

nting)

; DAS =

day

s af

ter

sow

ing.

App

licat

ion typ

ePPI

PP

LD

ate

appl

ied

6/3/

976/

4/97

Tim

e3:

00 p

m8:

30 a

mIn

corp

orat

ion e

quip

men

tR

otot

iller

N/A

Air/S

oil t

empe

ratu

re (F

)N/

AN/

AR

elat

ive

hum

idity

(%)

N/A

N/A

Win

d (m

ph, d

irec

tion)

5 /

north

5 /

north

Wea

ther

mos

tly s

unny

clou

dySoi

l moi

sture

dry

dry

Cro

p st

age/

Hei

ght (in

.)Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFl

at fa

n /

800

1Fl

at fa

n /

800

1B

oom

ht /

# N

oz /

Spa

cing

(in.)

20 /

3 /

28

20 /

3 /

28

Gpa

/ P

si10

/ 2

510

/ 2

5C

oncl

usi

ons:

Th

is s

tudy

eval

uat

ed t

he

influ

ence

of floo

din

g on

th

e ac

tivi

ty o

f m

olin

ate

(Ord

ram

) an

d t

hio

ben

carb

(B

oler

o) o

n d

omes

tic

rice

an

d r

ed r

ice.

Thio

ben

carb

was

mor

e ac

tive

on r

ed r

ice

under

con

tinu

ous

flood

ing

than

pin

poi

nt flo

odin

g bu

t al

so c

ause

d g

reat

er in

jury

on d

omes

tic

rice

. The

rice

inju

ry fr

omth

ioben

carb

red

uce

d p

anic

le d

ensi

ty a

nd y

ield

of d

omes

tic

rice

. Flo

odin

g did

not

affe

ct c

ontr

ol o

f red

ric

e bio

types

with thes

e her

bic

ides

. Mol

inat

e w

as e

ffect

ive

agai

nst

red

ric

e re

gard

less

of f

lood

ing

met

hod

, and

yiel

ds w

ere

hig

h. C

ontinuou

s flo

odin

g w

ithou

t her

bici

des

was

als

o an

effe

ctiv

e tr

eatm

ent fo

r re

d ri

ce.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

59

Tab

le 1

4.

Inju

ry rat

ing

Con

trol

rat

ing

Dom

estic

Red

ric

e bi

otyp

e

80

DAS

83 D

AS

Panic

le d

ensi

tyrice

Trea

tmen

tov

erse

eded

Dom

estic

rice

Red

ric

eD

omes

tic

rice

Red

ric

eyi

eld

(lb/A

)(%

)(n

o/ft2 )

(lb/A

)

Con

tinuou

s floo

d:

Mol

inat

e, 4

.0, P

PIN

one

038

4650

Mol

inat

e 4.

0, P

PISt

raw

hull

087

38<1

4680

Mol

inat

e 4.

0, P

PIB

lack

hull

090

38<1

5120

Thio

benca

rb, 4

.0, P

PLN

one

7527

1170

Thio

benca

rb, 4

.0, P

PLSt

raw

hull

8092

24<1

1070

Thio

benca

rb, 4

.0, P

PLB

lack

hull

7585

30<1

1700

Untr

eate

dN

one

031

4250

Untr

eate

dSt

raw

hull

090

38<1

4630

Untr

eate

dB

lack

hull

085

391

4440

Pin

poin

t floo

d:M

olin

ate,

4.0

, PPI

Non

e2

3847

30M

olin

ate

4.0,

PPI

Stra

whu

ll2

9040

<151

70M

olin

ate

4.0,

PPI

Bla

ckhu

ll2

8542

<149

80Th

iobe

nca

rb, 4

.0, P

PLN

one

1545

5040

Thio

benca

rb, 4

.0, P

PLSt

raw

hull

235

304

3540

Thio

benca

rb, 4

.0, P

PLB

lack

hull

77

392

4160

Untr

eate

dN

one

041

5250

Untr

eate

dSt

raw

hull

00

326

2980

Untr

eate

dB

lack

hull

00

358

3040

LSD

(0.0

5)

1223

94

1140

AAES RESEARCH SERIES 462

60

Tab

le 1

5. E

ffect

of s

oybean

herb

icid

es

on s

traw

hull

and b

lack

hull

red ri

ce b

ioty

pes

in fi

eld

stu

die

s, S

tutt

gar

t.Tab

le 1

5. E

ffect

of s

oybean

herb

icid

es

on s

traw

hull

and b

lack

hull

red ri

ce b

ioty

pes

in fi

eld

stu

die

s, S

tutt

gar

t.Tab

le 1

5. E

ffect

of s

oybean

herb

icid

es

on s

traw

hull

and b

lack

hull

red ri

ce b

ioty

pes

in fi

eld

stu

die

s, S

tutt

gar

t.Tab

le 1

5. E

ffect

of s

oybean

herb

icid

es

on s

traw

hull

and b

lack

hull

red ri

ce b

ioty

pes

in fi

eld

stu

die

s, S

tutt

gar

t.Tab

le 1

5. E

ffect

of s

oybean

herb

icid

es

on s

traw

hull

and b

lack

hull

red ri

ce b

ioty

pes

in fi

eld

stu

die

s, S

tutt

gar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.....................................................................................S

tutt

gart

Plan

ting

dat

e..............................................................

June

23, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

..........................................

Split

Plo

t / 3

Har

vest

dat

e.....................................................

Sept

embe

r 12, 1

997

Plot si

ze........................................................................

5.3

by 10 ft

.Cr

op/V

arie

ty..................................................................

red

rice

only

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................................

7 / 8

Dat

e of

Flo

od......................................................................

no fl

ood

Soil t

ype

...........................C

row

ley

silt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)Fl

ush

irrig

ated

........................

July

22, A

ugus

t 1 a

nd A

ugus

t 12, 1

997

% O

M /

pH

..........................................................................

1.3

/ 5

.5

Com

men

ts:

PPI =

pre

pla

nt in

corp

orat

ed; P

OST =

pos

tem

erge

nce

.App

licat

ion typ

ePPI

PO

ST

Dat

e ap

plie

d6/

23/9

77/

7/97

Tim

e12

:00

noo

nN/

AIn

corp

orat

ion e

quip

men

tR

otot

iller

N/A

Air

tem

pera

ture

(F)

9090

Rel

ativ

e hum

idity

(%)

N/A

N/A

Win

d (m

ph, d

irec

tion)

5 /

south

-sou

thw

est

5 /

south

wes

tW

eath

erm

ostly

clo

udy

part

ly c

loudy

Soi

l moi

sture

dry

dry

Cro

p st

age/

Hei

ght (in

.)N/

AN/

ASpr

ayer

type

/mph

BkP

kCO

2 /

3B

kPkC

O2 /

3N

ozzl

e ty

pe/

Siz

eFl

at fa

n /

800

1Fl

at fa

n /

800

1B

oom

ht /

# N

oz /

Spa

cing

(in.)

20 /

3 /

20

20 /

3 /

20

Gpa

/ P

si10

/ 2

310

/ 2

3W

eed s

pec

ies:

(hei

ght /

# le

aves

)O

RSYA - s

traw

hull

RR

3 lf

/ 6-

7"O

RYSA - b

lack

hull

RR

3 lf

/ 8"

OR

YSA - p

urp

le m

arke

r3

lf /

4-5"

Con

clusi

ons:

All

PPI t

reat

men

ts (m

etol

achlo

r, d

imet

hen

amid

and

alac

hlo

r +

trifl

ura

lin) g

ave

100%

con

trol

of b

oth s

traw

hull

and

blac

khull

red r

ice

biot

ypes

. At th

e3-lf s

tage

, glu

fosi

nat

e pro

vided

mor

e th

an 9

5%

con

trol

and a

ll ot

her

tre

atm

ents

pro

vided

less

than

70%

con

trol

. Con

trol

from

sta

ndar

d r

ates

of p

oste

mer

gence

gram

inic

ides

(cle

thod

im, se

thox

ydim

, qu

izal

ofop

and flu

azifo

p +

fen

oxap

rop) r

ange

d fro

m 3

3%

for

set

hox

ydim

(0.3

lb a

i/A

) on b

lack

hu

ll re

d r

ice

to 6

0%

for

quiz

alof

op (0

.056 lb

ai/

A) o

n s

traw

hu

ll re

d r

ice.

Im

azet

hap

yr (P

urs

uit) p

rovi

ded

less

than

50%

con

trol

. Ove

rall,

pos

tem

erge

nce

her

bic

ides

wer

e m

oder

atel

y m

ore

active

aga

inst

str

awhull

than

bla

ckhull

red

rice

. Con

trol

by

post

emer

gence

tre

atm

ents

may

hav

e be

en r

educe

d ge

ner

ally

bec

ause

soy

bean

pla

nts

wer

e not

pre

sent

in thes

e pl

ots

to c

ompe

te w

ith the

red

rice

.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

61

Tab

le 1

5.

Her

bici

deR

ate

App

licat

ion ti

min

gR

ed r

ice

type

Vis

ual

con

trol

(lb a

i/A)

(Stu

ttga

rt)

(%)

Met

olac

hlo

r (D

ual

)1.

5PPI

Bla

ckhu

ll10

0M

etol

achlo

r (D

ual

)1.

5PPI

Stra

whu

ll10

0SAN

582

(Fro

ntier

)0.

87PPI

Bla

ckhu

ll10

0SAN

582

(Fro

ntier

)0.

87PPI

Stra

whu

ll10

0Ala

chlo

r : t

riflu

ralin

(8:1

)(F

reed

om)

3.38

PPI

Bla

ckhu

ll10

0Ala

chlo

r : t

riflu

ralin

(8:1

)(F

reed

om)

3.38

PPI

Stra

whu

ll10

0Im

azet

hap

yr0.

063

PO

ST

Bla

ckhu

ll35

Imaz

ethap

yr0.

063

PO

ST

Stra

whu

ll42

Imaz

ethap

yr0.

125

PO

ST

Bla

ckhu

ll30

Imaz

ethap

yr0.

125

PO

ST

Stra

whu

ll40

Cle

thod

im0.

063

PO

ST

Bla

ckhu

ll17

Cle

thod

im0.

063

PO

ST

Stra

whu

ll23

Cle

thod

im0.

125

PO

ST

Bla

ckhu

ll47

Cle

thod

im0.

125

PO

ST

Stra

whu

ll53

Set

hox

ydim

0.3

PO

ST

Bla

ckhu

ll33

Set

hox

ydim

0.3

PO

ST

Stra

whu

ll42

Set

hox

ydim

0.15

PO

ST

Bla

ckhu

ll30

Set

hox

ydim

0.15

PO

ST

Stra

whu

ll37

Quiz

alof

op0.

031

PO

ST

Bla

ckhu

ll33

Quiz

alof

op0.

031

PO

ST

Stra

whu

ll42

Quiz

alof

op0.

056

PO

ST

Bla

ckhu

ll58

Quiz

alof

op0.

056

PO

ST

Stra

whu

ll60

Flu

azifo

p +

fenox

apro

p(F

usi

on)

0.18

8PO

ST

Bla

ckhu

ll40

conti

nued

AAES RESEARCH SERIES 462

62

Tab

le 1

5. C

onti

nued

.H

erbi

cide

Rat

eApp

licat

ion ti

min

gR

ed r

ice

type

Vis

ual

con

trol

(lb a

i/A)

(%)

Flua

zifo

p + fe

noxa

prop

(Fus

ion)

0.18

8PO

ST

Stra

whu

ll42

Flua

zifo

p + fe

noxa

prop

(Fus

ion)

0.09

4PO

ST

Bla

ckhu

ll42

Flua

zifo

p + fe

noxa

prop

(Fus

ion)

0.09

4PO

ST

Stra

whu

ll45

Gly

phos

ate

0.5

PO

ST

Bla

ckhu

ll63

Gly

phos

ate

0.5

PO

ST

Stra

whu

ll67

Glu

fosi

nate

0.5

PO

ST

Bla

ckhu

ll96

Glu

fosi

nate

0.5

PO

ST

Stra

whu

ll95

Bla

ckhu

ll LS

D (0.0

5)

15St

raw

hull L

SD (0

.05)

15

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

63

Tab

le 1

6. S

usc

epti

bili

ty o

f red

rice

bio

types

and g

lufo

sinat

e (L

iber

ty)-

resi

stan

t rice

to p

ost

emer

gen

ceTab

le 1

6. S

usc

epti

bili

ty o

f red

rice

bio

types

and g

lufo

sinat

e (L

iber

ty)-

resi

stan

t rice

to p

ost

emer

gen

ceTab

le 1

6. S

usc

epti

bili

ty o

f red

rice

bio

types

and g

lufo

sinat

e (L

iber

ty)-

resi

stan

t rice

to p

ost

emer

gen

ceTab

le 1

6. S

usc

epti

bili

ty o

f red

rice

bio

types

and g

lufo

sinat

e (L

iber

ty)-

resi

stan

t rice

to p

ost

emer

gen

ceTab

le 1

6. S

usc

epti

bili

ty o

f red

rice

bio

types

and g

lufo

sinat

e (L

iber

ty)-

resi

stan

t rice

to p

ost

emer

gen

ceap

plic

atio

ns

of g

lufo

sinat

e in

field

stu

die

s, S

tutt

gar

t.ap

plic

atio

ns

of g

lufo

sinat

e in

field

stu

die

s, S

tutt

gar

t.ap

plic

atio

ns

of g

lufo

sinat

e in

field

stu

die

s, S

tutt

gar

t.ap

plic

atio

ns

of g

lufo

sinat

e in

field

stu

die

s, S

tutt

gar

t.ap

plic

atio

ns

of g

lufo

sinat

e in

field

stu

die

s, S

tutt

gar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.....................................................................................S

tutt

gart

Plan

ting

dat

e..............................................................

June

4, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

..........................................

Split

Plo

t / 4

Har

vest

dat

e (d

ry w

eigh

t)..................

Aug

ust 2

6 - Se

ptem

ber 2

, 1997

Plot si

ze.....................................................................

5.2

5 b

y 7.5

ft.

Cro

p/V

arie

ty............................................

Libe

rty-

resist

ant G

ulfm

ontÊ

Row

wid

th /

Num

ber o

f row

s pe

r plo

t.................................................7

" / 9

Dat

e of

Flo

od..............................................................

July

10, 1

997

Soil t

ype

...........................C

row

ley

silt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)%

OM

/ p

H..........................................................................

1.3

/ 5

.5

Com

men

ts:

BF =

pre

flood

, PO

FL

= pos

tflo

od; L

PO

FL

= la

te p

ostflo

od.

App

licat

ion typ

e3-

lfBF

PO

FL

LPO

FL

Dat

e ap

plie

d6/

26/9

77/

7/97

7/14

/97

7/21

/97

Tim

e2:

00 p

mN/

AN/

A9:

30 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir

tem

pera

ture

(F)

9580

85N/

AR

elat

ive

hum

idity

(%)

N/A

N/A

N/A

N/A

Win

d (m

ph, d

irec

tion)

5 /

south

sou

thw

est

10 /

eas

t5

/ so

uth

wes

tlig

ht /

var

iabl

eW

eath

erm

ostly

sunny

part

ly c

loudy

sunn

ym

ostly

sunny

Soi

l moi

sture

dry

dry

flood

1"

flood

2"

Cro

p st

age/

Hei

ght (in

.)3-

4 lf

/ 6"

tille

ring

/ 10

"til

lering

/ 12

-14"

tille

ring

/ 16

-18"

Spr

ayer

type

/mph

BkP

kCO

2 / 2

BkP

kCO

2 / 2

BkP

kCO

2 / 2

BkP

kCO

2 / 2

Noz

zle

type/

Siz

eFl

at fa

n /

800

1Fl

at fa

n /

800

1Fl

at fa

n /

800

1Fl

at fa

n /

800

1B

oom

ht /

# N

oz /

Spa

cing

(in.)

20 /

3 /

28

20 /

3 /

20

20 /

3 /

20

20 /

3 /

20

Gpa

/ P

si10

/ 2

310

/ 1

0 /

2310

/ 2

310

/ 2

3W

eed s

pec

ies:

OR

YS

A3-

4 lf

/ 7-

8"til

lering

/ 12

"til

lering

/ 12

-16"

tille

ring

/ 16

-24"

Con

clusi

ons:

The

mos

t ef

ficac

iou

s co

ntr

ol o

f se

vera

l red

ric

e bio

types

in g

lufo

sinat

e-re

sist

ant

‘Gu

lfmon

t’ ri

ce w

as fro

m s

plit

applic

atio

ns

of g

lufo

sinat

e at

the

thre

e-le

af s

tage

and

pref

lood

sta

ge, o

r si

ngl

e pr

eflo

od a

pplic

atio

ns

(Fig

ure

s 1A

, 1B

). Th

ese

trea

tmen

ts g

ener

ally

gav

e go

od c

ontr

ol o

f Stu

ttga

rt s

traw

hull

(Stg

S) r

edri

ce a

t to

tal ra

tes

of 0

.75 t

o 1.0

lb/A

. S

ingl

e pos

tflo

od a

pplic

atio

ns

of g

lufo

sin

ate

at 0

.5 lb/A

or

grea

ter

gave

exc

elle

nt

con

trol

of S

tgS

, bu

t sh

ould

not

be

reco

mm

ended

bec

ause

ear

ly s

easo

n w

eed c

ompet

itio

n c

an r

esu

lt in

yie

ld los

s. T

X4 r

ed r

ice

(Fig

ure

1A

) w

as a

bou

t tw

ice

as t

oler

ant

as S

tgS

(Fig

ure

1B

) to

glufo

sinat

e.

AAES RESEARCH SERIES 462

64

Phot

osyn

thes

is o

f red

rice

bio

type

s de

crea

sed

rapi

dly

begi

nnin

g w

ithi

n th

e fir

st fi

ve h

ours

aft

er tr

eatm

ent (

HA

T; F

igur

e 2A

). T

rans

pira

tion

dec

reas

ed to

ale

sser

deg

ree

than

did

pho

tosy

nthe

sis (F

igur

e 2B).

Lea

f chl

oros

is (as

est

imat

ed b

y a

Min

olta

SPA

D-5

02) de

velo

ped

mor

e sl

owly

, bec

omin

g no

tice

able

withi

n 24

HA

T (Fi

gur

e 2C).

Glu

fosi

nate

did

not

cau

se c

hlor

osis

or a

ny o

ther

vis

ible

cha

nges

in the

Gul

fmon

t pl

ants

eve

n th

ough

phot

osyn

thes

is a

nd tra

nspi

ration

rate

s w

ere

redu

ced

initia

lly a

nd the

n re

cove

red

(Fig

ures

2A

and

2B).

Thi

s re

sear

ch d

emon

stra

tes th

at g

lufo

sina

te c

an e

ffec

tive

ly c

ontr

ol sev

eral

red

rice

biot

ypes

with

a hi

gher

deg

ree

of sel

ectivi

ty in

glu

fosi

nate

-res

ista

nt ri

ce.

Bec

ause

som

e bi

otyp

es o

f red

rice

app

ear t

o su

rviv

e be

tter

tha

n ot

hers

at lo

w ra

tes of

glu

fosi

nate

, gro

wer

s w

ill n

eed

to a

void

app

lyin

g gl

ufos

inat

e at

sub

stan

tial

lyre

duce

d ra

tes.

Figure

1. E

ffect

of t

ota

l rat

e a

nd tim

ing o

f glu

fosi

nat

e (Lib

ert

y) ap

plic

atio

n o

n d

ry w

eig

ht of T

X4

red ri

ce (A

) an

dStg

S re

d ri

ce (B) in

separ

ate d

rill

row

s.Fi

gure

1. E

ffect

of t

ota

l rat

e a

nd tim

ing o

f glu

fosi

nat

e (Lib

ert

y) ap

plic

atio

n o

n d

ry w

eig

ht of T

X4

red ri

ce (A

) an

dStg

S re

d ri

ce (B) in

separ

ate d

rill

row

s.Fi

gure

1. E

ffect

of t

ota

l rat

e a

nd tim

ing o

f glu

fosi

nat

e (Lib

ert

y) ap

plic

atio

n o

n d

ry w

eig

ht of T

X4

red ri

ce (A

) an

dStg

S re

d ri

ce (B) in

separ

ate d

rill

row

s.Fi

gure

1. E

ffect

of t

ota

l rat

e a

nd tim

ing o

f glu

fosi

nat

e (Lib

ert

y) ap

plic

atio

n o

n d

ry w

eig

ht of T

X4

red ri

ce (A

) an

dStg

S re

d ri

ce (B) in

separ

ate d

rill

row

s.Fi

gure

1. E

ffect

of t

ota

l rat

e a

nd tim

ing o

f glu

fosi

nat

e (Lib

ert

y) ap

plic

atio

n o

n d

ry w

eig

ht of T

X4

red ri

ce (A

) an

dStg

S re

d ri

ce (B) in

separ

ate d

rill

row

s.A

bbre

viat

ions

for a

pplic

atio

n tim

ing: 3

lf =

3-leaf

; BF

= b

efo

re fl

ood (pre

flood);

3 lf

/BF

= 3

-leaf

follo

wed b

y b

efo

re fl

ood; P

ost

F =

4 d

ays

post

-flo

od.

Abbre

viat

ions

for a

pplic

atio

n tim

ing: 3

lf =

3-leaf

; BF

= b

efo

re fl

ood (pre

flood);

3 lf

/BF

= 3

-leaf

follo

wed b

y b

efo

re fl

ood; P

ost

F =

4 d

ays

post

-flo

od.

Abbre

viat

ions

for a

pplic

atio

n tim

ing: 3

lf =

3-leaf

; BF

= b

efo

re fl

ood (pre

flood);

3 lf

/BF

= 3

-leaf

follo

wed b

y b

efo

re fl

ood; P

ost

F =

4 d

ays

post

-flo

od.

Abbre

viat

ions

for a

pplic

atio

n tim

ing: 3

lf =

3-leaf

; BF

= b

efo

re fl

ood (pre

flood);

3 lf

/BF

= 3

-leaf

follo

wed b

y b

efo

re fl

ood; P

ost

F =

4 d

ays

post

-flo

od.

Abbre

viat

ions

for a

pplic

atio

n tim

ing: 3

lf =

3-leaf

; BF

= b

efo

re fl

ood (pre

flood);

3 lf

/BF

= 3

-leaf

follo

wed b

y b

efo

re fl

ood; P

ost

F =

4 d

ays

post

-flo

od.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

65

Figure

2. E

ffec

t of 1

lb/A

glu

fosi

nat

e (L

iber

ty) ap

plie

d ten

day

s post

-flo

od o

n p

hoto

synth

esis

(A

), tra

nsp

irat

ion (B),

Figure

2. E

ffec

t of 1

lb/A

glu

fosi

nat

e (L

iber

ty) ap

plie

d ten

day

s post

-flo

od o

n p

hoto

synth

esis

(A

), tra

nsp

irat

ion (B),

Figure

2. E

ffec

t of 1

lb/A

glu

fosi

nat

e (L

iber

ty) ap

plie

d ten

day

s post

-flo

od o

n p

hoto

synth

esis

(A

), tra

nsp

irat

ion (B),

Figure

2. E

ffec

t of 1

lb/A

glu

fosi

nat

e (L

iber

ty) ap

plie

d ten

day

s post

-flo

od o

n p

hoto

synth

esis

(A

), tra

nsp

irat

ion (B),

Figure

2. E

ffec

t of 1

lb/A

glu

fosi

nat

e (L

iber

ty) ap

plie

d ten

day

s post

-flo

od o

n p

hoto

synth

esis

(A

), tra

nsp

irat

ion (B),

and re

lati

ve c

hlo

rophyll co

nte

nt (C

) of S

tgS a

nd T

X4

red ri

ce b

ioty

pes,

and g

lufo

sinat

e-r

esi

stan

t G

ulfm

ont.

and re

lati

ve c

hlo

rophyll co

nte

nt (C

) of S

tgS a

nd T

X4

red ri

ce b

ioty

pes,

and g

lufo

sinat

e-r

esi

stan

t G

ulfm

ont.

and re

lati

ve c

hlo

rophyll co

nte

nt (C

) of S

tgS a

nd T

X4

red ri

ce b

ioty

pes,

and g

lufo

sinat

e-r

esi

stan

t G

ulfm

ont.

and re

lati

ve c

hlo

rophyll co

nte

nt (C

) of S

tgS a

nd T

X4

red ri

ce b

ioty

pes,

and g

lufo

sinat

e-r

esi

stan

t G

ulfm

ont.

and re

lati

ve c

hlo

rophyll co

nte

nt (C

) of S

tgS a

nd T

X4

red ri

ce b

ioty

pes,

and g

lufo

sinat

e-r

esi

stan

t G

ulfm

ont.

AAES RESEARCH SERIES 462

66

Tab

le 1

7. Red ri

ce c

ontr

ol i

n IM

I-to

lera

nt rice

, Rohw

er.

Tab

le 1

7. Red ri

ce c

ontr

ol i

n IM

I-to

lera

nt rice

, Rohw

er.

Tab

le 1

7. Red ri

ce c

ontr

ol i

n IM

I-to

lera

nt rice

, Rohw

er.

Tab

le 1

7. Red ri

ce c

ontr

ol i

n IM

I-to

lera

nt rice

, Rohw

er.

Tab

le 1

7. Red ri

ce c

ontr

ol i

n IM

I-to

lera

nt rice

, Rohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................R

ohw

erPl

anting

dat

e..............................................................

June

6, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.............................................................................N

/APl

ot si

ze.......................................................................4

.5 ft

by 17 ft

Cro

p/Var

iety

.......................................................

Ric

e /

IMI-T

ole

rant

Row

wid

th /

Num

ber o

f row

s pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

.............................................................J

une

25, 1

997

Soil t

ype

..............................................

Cla

y (9

% san

d, 3

8%

silt

, 53%

cla

y)%

OM

/ p

H...........................................................................3

.5 / 6

.7

Com

men

ts: PPI =

pre

pla

nt in

corp

orat

ed; P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; and E

PO

ST =

ear

ly p

oste

mer

gence

.App

licat

ion typ

ePPI

PR

ED

PR

EE

PO

ST

Dat

e ap

plie

dJu

ne

6, 1

997

June

6, 1

997

June

15, 1

997

June

23, 1

997

Tim

e12

:00

pm2:

45 p

m1:

00 p

m9:

50 p

mIn

corp

orat

ion e

quip

men

tro

to-t

iller

N/A

N/A

N/A

Air/S

oil t

empe

ratu

re (F

)82

/ 7

885

/ 8

087

/ 7

889

/ 7

8R

elat

ive

hum

idity

(%)

6155

6472

Win

d (m

ph)

5-10

5-10

3-5

1-3

Wea

ther

sunn

ysu

nny

sunn

ysu

nny

Soi

l moi

sture

moi

stm

oist

moi

stm

oist

Cro

p st

age/

Hei

ght

N/A

N/A

N/A

2-3

lf /

3"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

FF /

110

02B

oom

ht /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

15 /

4 /

17

15 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 1

815

/ 1

815

/ 1

815

/ 1

8W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)O

RYSA (1

50-1

80/m

2 )N/

AN/

AN/

A2-

3 lf

/ 2-

3"C

oncl

usi

ons:

This

stu

dy w

as d

esig

ned

to

eval

uat

e im

azet

hap

yr (P

urs

uit) f

or r

ed r

ice

contr

ol in

IMI-

rice

. A s

oil a

pplic

atio

n o

f im

azet

hap

yr a

t 0.

063

follo

wed

by

anea

rly

post

emer

gence

app

licat

ion o

f im

azet

hap

yr a

t 0.

063

lb/A

con

trol

led

red

rice

from

94

to 9

7%. T

his

stu

dy w

as n

ot tak

en to

yiel

d.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

67

Tab

le 1

7.

App

licat

ion

Red

ric

e (O

RYSA

) con

trol

Ric

e in

jury

Ric

e hea

din

gH

erbi

cide

Rat

etim

ing

7/9

7/29

8/14

8/28

7/9

7/29

8/14

8/28

8/14

8/28

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

9510

0Im

azet

hap

yr0.

094

PPI

6656

6155

00

00

8696

Imaz

ethap

yr0.

125

PPI

8989

9292

00

00

9397

Imaz

ethap

yr0.

063

PR

E43

3540

300

00

088

94Im

azet

hap

yr0.

094

PR

E73

7330

550

30

084

96Im

azet

hap

yr0.

125

PR

E79

8471

780

00

093

97Im

azet

hap

yr +

0.06

3pe

ndi

met

hal

in1.

0D

PR

E76

5888

580

40

075

95Im

azet

hap

yr +

0.09

4pe

ndi

met

hal

in1.

0D

PR

E85

7487

703

80

079

95Im

azet

hap

yr +

0.12

5pe

ndi

met

hal

in1.

0D

PR

E89

9497

854

30

084

97Im

azet

hap

yr +

0.06

3A

G-9

8 (0

.25%

)E

PO

ST

7188

9391

03

00

8097

Imaz

ethap

yr +

0.09

4A

G-9

8 (0

.25%

)E

PO

ST

7895

9095

35

00

7395

Imaz

ethap

yr +

0.12

5A

G-9

8 (0

.25%

)E

PO

ST

7095

9593

03

00

8198

Imaz

ethap

yr fb

0.06

3PPI

imaz

ethap

yr +

0.06

3A

G-9

8 (0

.25%

)E

PO

ST

8994

9897

00

00

9298

Imaz

ethap

yr fb

0.06

3PR

Eim

azet

hap

yr +

0.06

3A

G-9

8 (0

.25%

)E

PO

ST

8393

9797

00

00

9098

Imaz

ethap

yr +

0.06

3pe

ndi

met

hal

in fb

1.0

DPR

Eim

azet

hap

yr +

0.06

3A

G-9

8 (0

.25%

)E

PO

ST

8694

9894

33

00

7198

Prop

anil

(Sta

m M

4) +

4.0

pendi

met

hal

in1.

0E

PO

ST

2425

3829

00

00

8891

Quin

clor

ac +

0.5

pendi

met

hal

in1.

0D

PR

E5

1535

240

00

080

94 conti

nued

AAES RESEARCH SERIES 462

68

Tab

le 1

7.

Con

tinued

.App

licat

ion

Red

ric

e (O

RYSA

) con

trol

Ric

e in

jury

Ric

e hea

din

gH

erbi

cide

Rat

etim

ing

7/9

7/29

8/14

8/28

7/9

7/29

8/14

8/28

8/14

8/28

(lb/A

)(%

)

Clo

maz

one

fb0.

5PR

Eim

azet

hap

yr0.

063

EPO

ST

8095

9696

03

00

7996

LSD

(0.0

5)

910

1211

NS

NS

NS

NS

144

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

69

Tab

le 1

8. Eva

luat

ion o

f post

-flo

od a

pplic

atio

n tim

ings

of t

ricl

opyr

(G

randst

and) fo

llow

ing fe

noxa

pro

p (W

hip

), R

ohw

er.

Tab

le 1

8. Eva

luat

ion o

f post

-flo

od a

pplic

atio

n tim

ings

of t

ricl

opyr

(G

randst

and) fo

llow

ing fe

noxa

pro

p (W

hip

), R

ohw

er.

Tab

le 1

8. Eva

luat

ion o

f post

-flo

od a

pplic

atio

n tim

ings

of t

ricl

opyr

(G

randst

and) fo

llow

ing fe

noxa

pro

p (W

hip

), R

ohw

er.

Tab

le 1

8. Eva

luat

ion o

f post

-flo

od a

pplic

atio

n tim

ings

of t

ricl

opyr

(G

randst

and) fo

llow

ing fe

noxa

pro

p (W

hip

), R

ohw

er.

Tab

le 1

8. Eva

luat

ion o

f post

-flo

od a

pplic

atio

n tim

ings

of t

ricl

opyr

(G

randst

and) fo

llow

ing fe

noxa

pro

p (W

hip

), R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................R

ohw

erPl

anting

dat

e...............................................................M

ay 2

1, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

.................................................R

CB /

4Har

vest

dat

e.......................................................S

epte

mbe

r 5, 1

997

Plot si

ze.......................................................................4.5

ft b

y 17 ft

Cro

p/Var

iety

...............................................................Ri

ce /

Lem

ont

Row

wid

th /

Num

ber o

f row

s pe

r plo

t.....................................6

.5 in

/ 9

row

sD

ate

of F

lood

.............................................................J

une

30, 1

997

Soil t

ype

........................................

Silty

clay

(9%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H...........................................................................

3.5

/ 6

.7

Com

men

ts: 0

DAT

= da

y fe

nox

apro

p w

as a

pplie

d to

spe

cifie

d tr

eatm

ents

(June

26);

14 a

nd

28 D

AT

= 14

and

28 d

ays

afte

r fe

nox

apro

p w

as a

pplie

d. P

I = p

anic

lein

itia

tion

(14 D

AT);

and D

PR

E =

del

ayed

pre

emer

gence

.App

licat

ion typ

eD

PR

E0

DAT

14 D

AT

28 D

AT

Dat

e ap

plie

dM

ay 6

, 199

7Ju

ne

26, 1

997

July

11,

199

7Ju

ly 2

4, 1

997

Tim

e2:

45 p

m9:

00 p

m8:

05 a

m1:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)81

/ 7

090

/ 8

080

/ 7

897

/ 9

4R

elat

ive

hum

idity

(%)

3270

8280

Win

d (m

ph, d

irec

tion)

5-10

0-3

0-3

0-3

Wea

ther

sunn

ypa

rtly

clo

udy

part

ly c

loudy

sunn

ySoi

l moi

sture

good

wet

wet

dry

Cro

p st

age/

Hei

ght

N/A

3-5

lf /

12-1

6"PI

/ 1

2-16

"1"

inte

rnod

e /

14-1

8"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

FF /

110

02B

oom

ht /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

18 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 2

015

/ 1

815

/ 1

815

/ 1

8W

eed s

pec

ies

(pop

ula

tion

)(h

eigh

t /

# le

aves

)O

RYSA (1

50-1

80/m

2 )N/

AN/

AN/

A2-

3 lf

/ 2-

3"C

oncl

usi

ons:

This

stu

dy

was

des

igned

to

eval

uat

e ri

ce in

jury

when

tri

clop

yr (G

randst

and) f

ollo

wed

an a

pplic

atio

n o

f fen

oxap

rop (W

hip

). R

ice

inju

ry w

as 1

1%

at

the

Augu

st 2

8 ra

ting

date

, but w

as n

ot s

ignifi

cantly

hig

her

than

inju

ry fr

om s

ingl

e ap

plic

atio

ns

of tricl

opyr

. Fen

oxap

rop

at 0

.08

lb/A

follo

wed

by

tric

lopy

r at

0.2

5 lb

/Apl

us

prop

anil

at 1

.0 lb

/A h

ad the

hig

hes

t num

eric

al y

ield

of 7

436

lb/A

, and

fenox

apro

p at

0.0

7 lb

/A fo

llow

ed b

y tr

iclo

pyr

at 0

.38

lb/A

had

the

low

est num

eric

al y

ield

of 3

798

lb/A

.

AAES RESEARCH SERIES 462

70

Tab

le 1

8.

App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

7/9

7/29

8/14

8/28

yiel

d(lb

/A)

(%)

(lb/A

)0

DAT

= Ju

ne

26 w

hen

fenox

apro

p w

as a

pplie

d:U

ntr

eate

d ch

eck

00

00

6098

Tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

0 D

AT

43

00

6386

Tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

14 D

AT

03

056

42Tr

iclo

pyr

+0.

25 +

prop

anil

(Sta

m M

4)1.

028

DAT

44

152

53Tr

iclo

pyr

+ AG

-98

(0.2

5%)

0.38

0 D

AT

511

113

5633

Tric

lopy

r +

AG

-98

(0.2

5%)

0.38

14 D

AT

00

357

62Tr

iclo

pyr

+ AG

-98

(0.2

5%)

0.38

28 D

AT

33

042

90Fen

oxap

rop

0.07

0 D

AT

1116

115

5801

Fen

oxap

rop

+0.

07 +

tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

0 D

AT

53

50

6012

Fen

oxap

rop

fb0.

07 fb

0 D

AT

tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

14 D

AT

105

83

6050

Fen

oxap

rop

fb0.

07 fb

0 D

AT

tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

28 D

AT

1411

85

4970

Fen

oxap

rop

+0.

07 +

tric

lopy

r +

0.38

AG

-98 (0

.25%

)0

DAT

51

30

5973

Fen

oxap

rop

fb0.

07 fb

0 D

AT

tric

lopy

r +

AG

-98

(0.2

5%)

0.38

14 D

AT

1514

143

5719

Fen

oxap

rop

fb0.

07 fb

0 D

AT

tric

lopy

r +

0.38

AG

-98 (0

.25%

)28

DAT

1021

164

3798

Fen

oxap

rop

0.08

0 D

AT

1320

1911

5661

Fen

oxap

rop

+0.

08 +

tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

0 D

AT

614

105

5393

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

71

Tab

le 1

8.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

7/9

7/29

8/14

8/28

yiel

d(lb

/A)

(%)

(lb/A

)

Fen

oxap

rop

fb0.

08 fb

0 D

AT

tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

14 D

AT

1114

95

7436

Fen

oxap

rop

fb0.

08 fb

0 D

AT

tric

lopy

r +

0.25

+pr

opan

il (S

tam

M4)

1.0

28 D

AT

1313

153

4571

Fen

oxap

rop

+0.

08 fb

tric

lopy

r +

0.38

AG

-98 (0

.25%

)0

DAT

1113

65

5465

Fen

oxap

rop

fb0.

08 fb

0 D

AT

tric

lopy

r +

AG

-98

(0.2

5%)

0.38

14 D

AT

1416

155

5301

Fen

oxap

rop

fb0.

08 fb

0 D

AT

tric

lopy

r +

AG

-98

(0.2

5%)

0.38

28 D

AT

1318

116

5941

Fen

oxap

rop

fb0.

080

DAT

tric

lopy

r +

0.25

+(p

ropa

nil

+ m

olin

ate)

1.0

28 D

AT

55

43

5445

LSD

(0.0

5)

57

10N

S98

1

AAES RESEARCH SERIES 462

72

Tab

le 1

9. Eva

luat

ion o

f tricl

opyr (

Gra

ndst

and) an

d b

ensu

lfuro

n (Londax

) fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 1

9. Eva

luat

ion o

f tricl

opyr (

Gra

ndst

and) an

d b

ensu

lfuro

n (Londax

) fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 1

9. Eva

luat

ion o

f tricl

opyr (

Gra

ndst

and) an

d b

ensu

lfuro

n (Londax

) fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 1

9. Eva

luat

ion o

f tricl

opyr (

Gra

ndst

and) an

d b

ensu

lfuro

n (Londax

) fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 1

9. Eva

luat

ion o

f tricl

opyr (

Gra

ndst

and) an

d b

ensu

lfuro

n (Londax

) fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................R

ohw

erPl

anting

dat

e...............................................................M

ay 1

4, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e..............................................................................

N/A

Plot si

ze.......................................................................4

.5 ft

by 17 ft

Cro

p/Var

iety

................................................................

Rice

/ L

emon

tRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

.............................................................

June

25, 1

997

Soil t

ype

.......................................

Silty

clay

(9%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H...........................................................................3

.5 / 6

.7

Com

men

ts: A

pplic

atio

n b

ased

on r

ice

leaf

sta

ge; P

I - p

anic

le in

itia

tion

.App

licat

ion typ

e2-

3 lf

3-5

lfPI

Dat

e ap

plie

dJu

ne

5, 1

997

June

23, 1

997

July

11,

199

7Ti

me

10:3

0 am

7:30

am

7:30

am

Inco

rpor

atio

n e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)72

/ 7

078

/ 7

880

/ 7

8R

elat

ive

hum

idity

(%)

7090

82W

ind

(mph

, direc

tion)

2-5

1-2

0-3

Wea

ther

sunn

ysu

nny

part

ly c

loudy

Soi

l moi

sture

dry

good

wet

Cro

p st

age/

Hei

ght

2-3

lf /

2-5"

4-5

lf /

4-6"

PI /

12-

16"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 2

215

/ 1

815

/ 1

8W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (1

5-20

/m2 )

1-3

lf /

1-3"

1-4

lf /

1-4"

6-12

lf /

6-2

4"E

CH

CG

(500

-600

/m2)

1-3

lf /

0.5-

3"2-

5 lf/

0.5

-6"

1-4

till /

10-

24"

Concl

usi

ons:

This

stu

dy

eval

uat

ed t

ricl

opyr

(Gra

ndst

and) a

nd b

ensu

lfuro

n (L

ondax

) for

wee

d c

ontr

ol in

ric

e. B

arnya

rdgr

ass

contr

ol w

as a

bov

e 90%

for

all

trea

tmen

ts a

t th

e fir

st r

atin

g. H

owev

er, c

ontr

ol d

ropp

ed s

ignifi

cantly

as the

seas

on p

rogr

esse

d. C

ontr

ol o

f hem

p se

sban

ia a

nd

pal

mle

af m

ornin

gglo

ry w

as 9

4% o

rgr

eate

r fo

r al

l tre

atm

ents

at th

e ea

rly

rating.

The

rice

did

not

yie

ld d

ue

to h

eavy

late

-sea

son b

arnya

rdgr

ass

pres

sure

.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

73

Tab

le 1

9.

Wee

d co

ntr

olPal

mle

afH

emp

mor

nin

g-B

arnya

rdgr

ass

sesb

ania

glor

yApp

licat

ion

(EC

HC

G)

SE

BE

XIP

OW

RR

ice

inju

ryH

erbi

cide

Rat

etim

ing

6/13

7/9

7/30

8/14

6/13

6/13

6/13

7/9

7/30

8/14

(lb/A

)(%

)Pr

opan

il (S

tam

ED

F) +

4.0

AG

-98 (0

.25%

) fb

2-3

lftr

iclo

pyr

+ AG

-98

(0.2

5%)

0.25

3-5

lf93

7166

4897

951

00

0Tr

iclo

pyr

+ pr

opan

il0.

19(S

tam

ED

F) +

AG

-98 (0

.25%

)4.

02-

3 lf

9468

3655

9798

60

00

Tric

lopy

r +

0.19

(pro

panil

+ m

olin

ate)

4.0

2-3

lf97

8475

8098

989

00

0Tr

iclo

pyr

+ pr

opan

il0.

25(S

tam

ED

F) +

AG

-98 (0

.25%

)4.

03-

5 lf

4439

440

00

Tric

lopy

r +

prop

anil

0.19

(Sta

m E

DF) +

AG

-98 (0

.25%

) fb

4.0

2-3

lftr

iclo

pyr +

prop

anil

0.25

(Sta

m E

DF) +

AG

-98 (0

.25%

)1.

0PI

9569

7079

9898

80

00

Tric

lopy

r +

prop

ranil

0.25

(Sta

m E

DF) +

AG

-98 (0

.25%

) fb

4.0

3-5

lftr

iclo

pyr +

prop

anil

0.25

(Sta

m E

DF) +

AG

-98 (0

.25%

)1.

0PI

3545

540

00

Prop

anil

(Sta

m E

DF) +

4.0

AG

-98 (0

.25%

) fb

2-3

lftr

iclo

pyr

+ AG

-98

(0.2

5%)

0.25

PI

9335

3943

9898

80

00

Prop

anil

(Sta

m E

DF) +

4.0

AG

-98 (0

.25%

) fb

2-3

lftr

iclo

pyr

+ AG

-98

(0.2

5%)

0.38

PI

9325

4639

9797

90

00

Prop

anil

(Sta

m E

DF) +

AG

-98

4.0

2-3

lf(0

.25%

) fb

tric

lopy

r +

prop

anil

0.25

(Sta

m E

DF) +

AG

-98 (0

.25%

)1.

0PI

9540

4955

9898

60

00

Prop

anil

(Sta

m E

DF) +

AG

-98

4.0

2-3

lf(0

.25%

) fb

tric

lopy

r +

prop

anil

0.38

(Sta

m E

DF) +

AG

-98 (0

.25%

)1.

0PI

9550

4949

9898

80

00

conti

nued

AAES RESEARCH SERIES 462

74

Tab

le 1

9.

Con

tinued

Wee

d co

ntr

olPal

mle

afH

emp

mor

nin

g-B

arnya

rdgr

ass

sesb

ania

glor

yApp

licat

ion

(EC

HC

G)

SE

BE

XIP

OW

RR

ice

inju

ryH

erbi

cide

Rat

etim

ing

6/13

7/9

7/30

8/14

6/13

6/13

6/13

7/9

7/30

8/14

(lb/A

)(%

)

Prop

anil

(Sta

m E

DF) +

AG

-98

4.0

2-3

lf(0

.25%

) fb

tric

lopy

r +

0.25

(pro

panil

+ m

olin

ate)

1.0

PI

9361

6853

9898

80

00

Ben

sulfu

ron +

pro

panil

0.01

9(S

tam

ED

F) +

AG

-98 (0

.25%

)4.

02-

3 lf

fb b

ensu

lfuro

n +

pro

panil

0.01

9(S

tam

ED

F) +

AG

-98 (0

.25%

)4.

03-

5 lf

9388

8079

9798

90

00

Ben

sulfu

ron +

pro

panil

0.01

9(S

tam

ED

F) +

AG

-98 (0

.25%

)4.

02-

3 lf

fb b

ensu

lfuro

n +

pro

panil

0.02

8(S

tam

ED

F) +

AG

-98 (0

.25%

)4.

03-

5 lf

9386

8078

9798

80

00

Prop

anil

(Sta

m E

DF) +

AG

-98

4.0

2-3

lf(0

.25%

) fb

bensu

lfuro

n +

0.03

8pr

opan

il (S

tam

ED

F) +

4.0

AG

-98 (0

.25%

)3-

5 lf

8981

7165

9694

60

00

Prop

anil

(Sta

m E

DF) +

AG

-98

4.0

2-3

lf(0

.25%

) fb

bensu

lfuro

n +

0.04

7pr

opan

il (S

tam

ED

F) +

1.0

AG

-98 (0

.25%

)PI

9155

3145

9898

40

00

Ben

sulfu

ron +

0.01

9(p

ropa

nil

+ m

olin

ate)

4.0

2-3

lf97

8363

7196

986

00

0Pr

opan

il (S

tam

ED

F) +

AG

-98

4.0

2-3

lf(0

.25%

) fb

bensu

lfuro

n +

0.04

7(p

ropa

nil

+ m

olin

ate)

1.0

PI

9139

3844

9898

90

00

LSD

(0.0

5%

)N

S12

1417

NS

NS

NS

NS

NS

NS

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

75

Tab

le 2

0.

Annual

gra

ss c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

0.

Annual

gra

ss c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

0.

Annual

gra

ss c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

0.

Annual

gra

ss c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

0.

Annual

gra

ss c

ontr

ol i

n ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

Rohw

erEx

perim

enta

l Des

ign

/ re

plic

atio

ns................................................

RCB /

4Pl

anting

dat

e..............................................................

May

14, 1

997

Plot si

ze......................................................................

4.5

ft b

y 17 ft

Har

vest

dat

e...........................................................O

ctob

er 7

, 1997

Row

wid

th /

Num

ber o

f row

s pe

r plo

t....................................

6.5

in / 9

row

sCr

op/V

arie

ty..............................................................

Rice

/ L

emon

tSo

il typ

e.....................................Si

lty

clay

(89%

san

d, 4

9%

silt

, 43%

cla

y)D

ate

of F

lood

.............................................................J

une

25, 1

997

% O

M /

pH

..........................................................................

3.5

/ 6

.7

Com

men

ts: App

licat

ion b

ased

on r

ice

leaf

sta

ge.

App

licat

ion typ

e2-

3 lf

4-5

lfD

ate

appl

ied

June

5, 1

997

June

23, 1

997

Tim

e8:

30 a

m9:

00 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)67

/ 6

786

/ 7

8R

elat

ive

hum

idity

(%)

8484

Win

d (m

ph, d

irec

tion)

2-5

1-2

Wea

ther

sunn

ysu

nny

Soi

l moi

sture

dry

good

Cro

p st

age/

Hei

ght

2-3

lf /

2-5"

5 lf

/ 10

"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02B

oom

ht /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 2

215

/ 1

8W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (1

5-20

/m2 )

2-3

lf /

2-5"

4-8

lf /

2-5"

EC

HC

G (5

00-6

00/m

2)

1-3

lf /

0.5-

3"4-

5 lf/

0.5

-3"

IPO

WR

(4-5

/m2)

Cot

.-2 lf

/ 2

-5"

Cot

.-6 lf

/ 2

-5"

Con

clusi

ons:

This

stu

dy e

valu

ated

her

bici

des

for

annual

gra

ss c

ontr

ol in

ric

e. B

arnya

rdgr

ass

contr

ol w

as a

bove

90%

for

all t

reat

men

ts a

t th

e Ju

ne

13 r

atin

g.H

owev

er, b

y Augu

st 1

4 ba

rnya

rdgr

ass

contr

ol w

as b

elow

80%

with m

ost si

ngl

e her

bici

de a

pplic

atio

ns.

AAES RESEARCH SERIES 462

76

Tab

le 2

0.

Wee

d co

ntr

olPal

mle

afH

emp

mor

nin

g-B

arnya

rdgr

ass

sesb

ania

glor

yApp

licat

ion

(EC

HC

G)

SE

BE

XIP

OW

RR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

137/

97/

308/

146/

136/

136/

137/

97/

308/

14yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

1008

Prop

anil

(Sta

m M

-4)

4.0

2-3

lf95

5644

4697

968

00

011

81Pr

opan

il (S

tam

80

ED

F) +

4.0

AG

-98 (0

.25%

)2-

3 lf

9034

2630

9794

50

00

586

Prop

anil

(Supe

r W

ham

)+4.

0A

gri-D

ex (1

%)

2-3

lf94

4333

3397

9718

00

011

48Pr

opan

il (S

tam

M-4

) fb

3.0

2-3

lfpr

opan

il (S

tam

M-4

)3.

04-

5 lf

9393

8083

9795

100

00

3457

Prop

anil

(Sta

m 8

0ED

F) +

3.0

AG

-98 (0

.25%

) fb

2-3

lfpr

opan

il (S

tam

80E

DF) +

3.0

AG

-98 (0

.25%

)4-

5 lf

9388

6984

9797

40

00

3616

Prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%) f

b2-

3 lf

prop

anil

(Supe

r W

ham

) +3.

0A

gri-D

ex (1

%)

4-5

lf93

9087

8697

9714

00

038

03Pr

opan

il (S

tam

M-4

) +3.

0th

iobe

nca

rb3.

02-

3 lf

9783

4663

9498

150

00

1873

Prop

anil

(Supe

r W

ham

) +3.

0th

iobe

nca

rb +

3.0

Agr

i-D

ex (1

%)

2-3

lf97

7450

5695

9819

00

013

40Pr

opan

il (S

tam

80E

DF) +

3.0

thio

benca

rb +

3.0

AG

-98 (0

.25%

)2-

3 lf

9773

5453

9798

100

00

2070

Prop

anil

(Sta

m M

-4) +

3.0

pendi

met

hal

in1.

02-

3 lf

9790

7976

9797

140

00

3587

Prop

anil

(Supe

r W

ham

) +3.

0pe

ndi

met

hal

in +

1.0

Agr

i-D

ex (1

%)

2-3

lf97

8875

7397

9820

00

034

91 conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

77

Tab

le 2

0. C

onti

nued

.W

eed

contr

olPal

mle

afH

emp

mor

nin

g-B

arnya

rdgr

ass

sesb

ania

glor

yApp

licat

ion

(EC

HC

G)

SE

BE

XIP

OW

RR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

137/

97/

308/

146/

136/

136/

137/

97/

308/

14yi

eld

(lb/A

)(%

)(lb

/A)

Prop

anil

(Sta

m 8

0ED

F) +

3.0

pendi

met

hal

in +

1.0

AG

-98 (0

.25%

)2-

3 lf

9784

7481

9797

60

00

2555

Prop

anil

(Sta

m 8

0ED

F) +

3.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)2-

3 lf

9669

5560

9797

130

00

2315

Prop

anil

(Sta

m M

-4) +

3.0

quin

clor

ac0.

125

2-3

lf97

9384

9095

9813

00

038

90Pr

opan

il (S

tam

M-4

) +3.

0qu

incl

orac

0.25

2-3

lf97

9093

9597

9710

00

048

35Pr

opan

il (S

tam

M-4

) +3.

0qu

incl

orac

0.38

2-3

lf98

9098

9698

9810

00

044

94Pr

opan

il (S

upe

r W

ham

) +3.

0qu

incl

orac

+0.

125

Agr

i-D

ex (1

%)

2-3

lf97

8884

8497

9710

00

041

20Q

uin

clor

ac +

0.12

5A

gri-D

ex (1

%)

2-3

lf91

8371

7097

924

00

021

80Q

uin

clor

ac +

0.25

Agr

i-D

ex (1

%)

2-3

lf88

8378

7396

924

00

028

91Q

uin

clor

ac +

0.38

Agr

i-D

ex (1

%)

2-3

lf91

9390

8998

9714

00

050

76(P

ropa

nil

+ m

olin

ate)

6.0

2-3

lf95

8680

8198

9723

00

034

77

LSD

(0.0

5)

412

1616

34

9N

SN

SN

S16

86

AAES RESEARCH SERIES 462

78

Tab

le 2

1. P

endim

eth

alin

(Pro

wl)

com

bin

atio

ns

for w

eed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

1. P

endim

eth

alin

(Pro

wl)

com

bin

atio

ns

for w

eed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

1. P

endim

eth

alin

(Pro

wl)

com

bin

atio

ns

for w

eed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

1. P

endim

eth

alin

(Pro

wl)

com

bin

atio

ns

for w

eed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

1. P

endim

eth

alin

(Pro

wl)

com

bin

atio

ns

for w

eed c

ontr

ol i

n ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Rohw

erPl

anting

dat

e...............................................................M

ay 1

4, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e...............................................................................N

/APl

ot si

ze......................................................................

4.5

ft b

y 17 ft

Cro

p/Var

iety

................................................................

Rice

/ L

emon

tRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

..............................................................

June

25, 1

997

Soil t

ype

.......................................S

ilty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H..........................................................................

3.5

/ 6

.7

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; E

PO

ST =

ear

ly p

oste

mer

gence

; LP

OST =

late

pos

tem

erge

nce

.App

licat

ion typ

eD

PR

EE

PO

ST

LPO

ST

Dat

e ap

plie

dM

ay 2

2, 1

997

June

5, 1

997

June

23, 1

997

Tim

e9:

00 a

m7:

05 a

m9:

35 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)67

/ 6

568

/ 6

787

/ 7

8R

elat

ive

hum

idity

(%)

5972

80W

ind

(mph

, direc

tion)

4-6

2-4

1-3

Wea

ther

sunn

ysu

nny

sunn

ySoi

l moi

sture

good

dry

good

Cro

p st

age/

Hei

ght

N/A

2-3

lf /

2-5"

5 lf

/ 10

"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

18 /

4 /

17

15 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 1

815

/ 2

215

/ 1

8W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (2

0-25

/m2 )

N/A

1-3

lf /

2-4"

4-8

lf /

4-6"

EC

HC

G (2

5-30

/m2 )

N/A

1-3

lf /

0.5-

2"4-

5 lf

/ 4-

6"C

oncl

usi

ons:

This

stu

dy e

valu

ated

sev

eral

soi

l-ap

plie

d pr

oduct

s fo

r ba

rnya

rdgr

ass

contr

ol. A

ll tr

eatm

ents

con

trol

led

barn

yard

gras

s 87

to

98%

at th

e Ju

ne

13ra

ting.

Pen

dim

ethal

in (P

row

l) at

1.0

lb/A

plu

s qu

incl

orac

(Fac

et) a

t 0.

25 to

0.5

lb/A

had

the

mos

t co

nsi

sten

t co

ntr

ol. R

ice

yiel

ds d

id n

ot d

iffer

am

ong

trea

tmen

ts.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

79

Tab

le 2

1.

Wee

d co

ntr

olPal

mle

afH

emp

mor

nin

g-B

arnya

rdgr

ass

sesb

ania

glor

yApp

licat

ion

(EC

HC

G)

SE

BE

XIP

OW

RR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

137/

97/

296/

137/

96/

136/

26/

137/

97/

29yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

4293

Pendi

met

hal

in1.

0D

PR

E94

9374

8073

763

50

043

50Pe

ndi

met

hal

in +

1.0

thio

benca

rb2.

0D

PR

E94

9576

8470

824

80

050

42Pe

ndi

met

hal

in +

1.0

thio

benca

rb3.

0D

PR

E94

9571

8669

785

60

047

20Pe

ndi

met

hal

in +

1.0

quin

clor

ac (7

5 D

F)

0.25

DPR

E97

9390

8890

908

80

047

63Pe

ndi

met

hal

in +

1.0

quin

clor

ac (7

5 D

F)

0.37

5D

PR

E97

9195

9793

974

60

051

52Q

uin

clor

ac (7

5 D

F)

0.25

DPR

E96

9395

9383

963

50

053

44Q

uin

clor

ac (7

5 D

F)

0.37

5D

PR

E94

9488

9181

874

40

052

58Q

uin

clor

ac (7

5 D

F)

0.5

DPR

E98

9494

9793

975

60

051

91Q

uin

clor

ac (1

.5 G

)0.

25D

PR

E97

9488

8669

956

40

052

39Q

uin

clor

ac (1

.5 G

)0.

375

DPR

E95

9483

9373

954

50

049

36Q

uin

clor

ac (1

.5 G

)0.

5D

PR

E98

9490

9484

975

80

052

96C

lom

azon

e0.

5D

PR

E96

9479

6434

918

60

045

76C

lom

azon

e0.

75D

PR

E93

9488

5851

906

40

049

41Th

iobe

nca

rb4.

0D

PR

E92

9153

8055

891

40

045

23Q

uin

clor

ac (7

5 D

F) +

0.37

5pe

ndi

met

hal

in1.

0D

PR

E87

8986

8583

613

40

042

83Q

uin

clor

ac (7

5 D

F) +

0.5

pendi

met

hal

in1.

0E

PO

ST

9894

9795

9496

05

00

4624

Quin

clor

ac (7

5 D

F) +

0.5

pendi

met

hal

in1.

0LPO

ST

9375

940

049

53

LSD

(0.0

5)

74

1210

1412

44

NS

NS

NS

AAES RESEARCH SERIES 462

80

Tab

le 2

2. Eva

luat

ion o

f clo

maz

one (C

om

man

d) ap

plic

atio

n tim

ings

and ra

tes,

Rohw

er.

Tab

le 2

2. Eva

luat

ion o

f clo

maz

one (C

om

man

d) ap

plic

atio

n tim

ings

and ra

tes,

Rohw

er.

Tab

le 2

2. Eva

luat

ion o

f clo

maz

one (C

om

man

d) ap

plic

atio

n tim

ings

and ra

tes,

Rohw

er.

Tab

le 2

2. Eva

luat

ion o

f clo

maz

one (C

om

man

d) ap

plic

atio

n tim

ings

and ra

tes,

Rohw

er.

Tab

le 2

2. Eva

luat

ion o

f clo

maz

one (C

om

man

d) ap

plic

atio

n tim

ings

and ra

tes,

Rohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Rohw

erPl

anting

dat

e...............................................................

May

14, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e............................................................

Oct

ober

8, 1

997

Plot si

ze......................................................................

4.5

ft b

y 17 ft

Cro

p/Var

iety

................................................................

Rice

/ L

emon

tRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

.............................................................

June

25, 1

997

Soil t

ype

.......................................S

ilty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H.........................................................................

3.5

/ 6

.7

Com

men

ts: P

PI =

pre

pla

nt in

corp

orat

ed; P

RE

- p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

.App

licat

ion typ

ePPI

PR

ED

PR

ED

ate

appl

ied

May

13,

199

7M

ay 1

4, 1

997

May

22,

199

7Ti

me

2:30

am

3:30

pm

8:30

am

Inco

rpor

atio

n e

quip

men

ttil

ler

N/A

N/A

Air/S

oil t

empe

ratu

re (F

)81

/ 7

084

/ 6

866

/ 6

5R

elat

ive

hum

idity

(%)

3256

70W

ind

(mph

, direc

tion)

5-10

5-10

5-9

Wea

ther

sunn

ypa

rtly

clo

udy

sunn

ySoi

l moi

sture

good

good

good

Cro

p st

age/

Hei

ght

N/A

N/A

N/A

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 /

3B

kPkC

O2 /

3N

ozzl

e ty

pe/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

15 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 2

015

/ 2

015

/ 1

8C

oncl

usi

ons:

This

stu

dy

eval

uat

ed c

lom

azon

e (C

omm

and) a

t diff

eren

t ra

tes

and tim

ings

for

bar

nya

rdgr

ass

contr

ol. C

lom

azon

e at

0.6

to

1.0

lb/A

had

the

mos

tco

nsi

sten

t co

ntr

ol fo

r th

e en

tire

sea

son a

cros

s ap

plic

atio

n tim

ings

. How

ever

, at th

ese

hig

her

rat

es a

pre

plan

t in

corp

orat

ed a

pplic

atio

n r

esulted

in m

ore

crop

inju

ryin

the

earl

y se

ason

. No

inju

ry w

as o

bser

ved

by J

uly

29.

Ric

e yi

elds

did

not

diff

er a

mon

g tr

eatm

ents

.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

81

Tab

le 2

2.

Wee

d co

ntr

olB

arnya

rdgr

ass

Hem

p se

sban

iaApp

licat

ion

(EC

HC

G)

SE

BE

XR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

137/

97/

296/

137/

96/

26/

137/

97/

29yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

049

65C

lom

azon

e (4

EC

)0.

1PPI

7379

5816

263

50

042

73C

lom

azon

e (4

EC

)0.

2PPI

7681

6934

133

60

051

81C

lom

azon

e (4

EC

)0.

4PPI

8490

9034

215

60

045

52C

lom

azon

e (4

EC

)0.

6PPI

9685

9318

3018

210

058

49C

lom

azon

e (4

EC

)0.

8PPI

9488

8944

2918

190

055

17C

lom

azon

e (4

EC

)1.

0PPI

9888

9341

2920

230

058

39C

lom

azon

e (3

ME

)0.

1PPI

6685

5125

161

50

046

77C

lom

azon

e (3

ME

)0.

2PPI

8589

6121

230

50

054

55C

lom

azon

e (3

ME

)0.

4PPI

8888

6440

154

80

046

39C

lom

azon

e (3

ME

)0.

6PPI

9688

9329

1910

140

049

41C

lom

azon

e (3

ME

)0.

8PPI

7586

7733

2410

140

053

97C

lom

azon

e (3

ME

)1.

0PPI

9888

9650

3120

344

061

42C

lom

azon

e (3

ME

)0.

1PR

E84

9366

3926

16

00

5133

Clo

maz

one

(3 M

E)

0.2

PR

E84

8564

2524

38

00

4667

Clo

maz

one

(3 M

E)

0.4

PR

E95

8887

2624

85

00

5546

Clo

maz

one

(3 M

E)

0.6

PR

E94

8988

2525

85

00

5368

Clo

maz

one

(3 M

E)

0.8

PR

E97

9193

3829

139

00

4648

Clo

maz

one

(3 M

E)

1.0

PR

E98

8996

2115

148

00

5320

Clo

maz

one

(3 M

E)

0.1

DPR

E85

8555

3514

45

00

4946

Clo

maz

one

(3 M

E)

0.2

DPR

E81

8661

3421

34

00

5244

Clo

maz

one

(3 M

E)

0.4

DPR

E95

8973

2125

35

00

5887

Clo

maz

one

(3 M

E)

0.6

DPR

E98

9093

2116

85

00

6281

Clo

maz

one

(3 M

E)

0.8

DPR

E97

8895

3624

155

00

5488

Clo

maz

one

(3 M

E)

1.0

DPR

E97

9095

3130

136

00

5988

LSD

(0.0

5)

249

2423

156

8N

SN

SN

S

AAES RESEARCH SERIES 462

82

Tab

le 2

3.

Eval

uat

ion o

f clo

maz

one 3

ME v

s. 3

G fo

r weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

3.

Eval

uat

ion o

f clo

maz

one 3

ME v

s. 3

G fo

r weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

3.

Eval

uat

ion o

f clo

maz

one 3

ME v

s. 3

G fo

r weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

3.

Eval

uat

ion o

f clo

maz

one 3

ME v

s. 3

G fo

r weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

3.

Eval

uat

ion o

f clo

maz

one 3

ME v

s. 3

G fo

r weed c

ontr

ol i

n ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................R

ohw

erPl

anting

dat

e...............................................................M

ay 1

4, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

.................................................R

CB /

4Har

vest

dat

e............................................................

Oct

ober

7, 1

997

Plot si

ze.......................................................................4.5

ft b

y 17 ft

Cro

p/Var

iety

...............................................................Ri

ce /

Lem

ont

Row

wid

th /

Num

ber o

f row

s pe

r plo

t.....................................6

.5 in

/ 9

row

sD

ate

of F

lood

..............................................................

June

25, 1

997

Soil t

ype

........................................

Silty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H...........................................................................

3.5

/ 6

.7

Com

men

ts: P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; ME

= m

icro

enca

psula

ted

form

ula

tion

; G =

gra

nula

r fo

rmula

tion

.App

licat

ion typ

ePR

ED

PR

ED

ate

appl

ied

May

14,

199

7M

ay 2

2, 1

997

Tim

e4:

00 p

m9:

45 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)84

/ 6

862

/ 6

5R

elat

ive

hum

idity

(%)

5669

Win

d (m

ph, d

irec

tion)

5-10

5-10

Wea

ther

part

ly c

loudy

sunn

ySoi

l moi

sture

good

good

Cro

p st

age/

Hei

ght

N/A

N/A

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02B

oom

ht /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 2

015

/ 1

8C

oncl

usi

ons:

This

stu

dy e

valu

ated

the

3 M

E v

ersu

s th

e 3G

form

ula

tion

of c

lom

azon

e (C

omm

and)

. Little

to n

o di

ffere

nce

s oc

curr

ed w

ith b

arnya

rdgr

ass

contr

ol;

how

ever

, ble

achin

g in

jury

was

mor

e pr

onou

nce

d w

hen

the

gran

ula

r fo

rmula

tion w

as u

sed.

Yie

lds

did

not

diff

er s

ignifi

cantly

.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

83

Tab

le 2

3.

Wee

d co

ntr

olB

arnya

rdgr

ass

Hem

p se

sban

iaE

ffect

on r

ice

App

licat

ion

(EC

HC

G)

SE

BE

XIn

jury

Ble

achin

gH

erbi

cide

Rat

etim

ing

7/9

7/30

7/9

7/9

7/30

6/2

6/13

(lb/A

)(%

)

Untr

eate

d0

00

00

00

Clo

maz

one

(3M

E)

0.4

PR

E89

9325

00

63

Clo

maz

one

(3M

E)

0.5

PR

E89

849

00

10

Clo

maz

one

(3M

E)

0.6

PR

E90

9314

00

94

Clo

maz

one

(3G

)0.

4PR

E90

8829

00

1715

Clo

maz

one

(3G

)0.

5PR

E90

8524

00

1518

Clo

maz

one

(3G

)0.

6PR

E90

9234

00

1616

Clo

maz

one

(3M

E)

0.4

DPR

E88

9114

00

30

Clo

maz

one

(3M

E)

0.5

DPR

E89

9724

00

40

Clo

maz

one

(3M

E)

0.6

DPR

E90

9424

00

30

Clo

maz

one

(3G

)0.

4D

PR

E90

8839

00

511

Clo

maz

one

(3G

)0.

5D

PR

E89

8619

00

1119

Clo

maz

one

(3G

)0.

6D

PR

E83

8616

00

1423

Quin

clor

ac0.

5D

PR

E90

9788

00

10

Thio

benca

rb4.

0D

PR

E75

5819

00

00

Pendi

met

hal

in1.

0D

PR

E90

7473

00

01

Pendi

met

hal

in +

1.0

quin

clor

ac0.

5D

PR

E90

9789

00

30

Pendi

met

hal

in +

1.0

thio

benca

rb4.

0D

PR

E90

7576

00

10

LSD

(0.0

5)

710

14N

SN

S5

5 conti

nued

AAES RESEARCH SERIES 462

84

Tab

le 2

3.

Con

tinued

.E

ffect

on r

ice

App

licat

ion

Chlo

rosi

sSta

nd

redu

ctio

nSt

unt

ing

Ric

eH

erbi

cide

Rat

etim

ing

6/2

6/13

6/2

6/13

6/2

6/13

yiel

d(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

2848

Clo

maz

one

(3M

E)

0.4

PR

E3

110

00

034

33C

lom

azon

e (3

ME

)0.

5PR

E8

100

00

042

98C

lom

azon

e (3

ME

)0.

6PR

E8

140

00

037

12C

lom

azon

e (3

G)

0.4

PR

E8

160

10

542

30C

lom

azon

e (3

G)

0.5

PR

E5

150

40

932

94C

lom

azon

e (3

G)

0.6

PR

E9

150

60

949

17C

lom

azon

e (3

ME

)0.

4D

PR

E5

90

10

040

14C

lom

azon

e (3

ME

)0.

5D

PR

E6

60

00

025

75C

lom

azon

e (3

ME

)0.

6D

PR

E8

80

10

029

97C

lom

azon

e (3

G)

0.4

DPR

E4

130

60

338

94C

lom

azon

e (3

G)

0.5

DPR

E5

140

30

539

23C

lom

azon

e (3

G)

0.6

DPR

E4

140

30

935

29Q

uin

clor

ac0.

5D

PR

E3

60

10

036

68Th

iobe

nca

rb4.

0D

PR

E1

90

30

032

37Pe

ndi

met

hal

in1.

0D

PR

E0

100

30

041

44Pe

ndi

met

hal

in +

1.0

quin

clor

ac0.

5D

PR

E6

110

10

041

30Pe

ndi

met

hal

in +

1.0

thio

benca

rb4.

0D

PR

E4

110

30

045

81

LSD

(0.0

5)

44

NS

NS

NS

4N

S

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

85

Tab

le 2

4. Eva

luat

ion o

f quin

clora

c (F

acet)

form

ula

tions

for g

rass

contr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

4. Eva

luat

ion o

f quin

clora

c (F

acet)

form

ula

tions

for g

rass

contr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

4. Eva

luat

ion o

f quin

clora

c (F

acet)

form

ula

tions

for g

rass

contr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

4. Eva

luat

ion o

f quin

clora

c (F

acet)

form

ula

tions

for g

rass

contr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

4. Eva

luat

ion o

f quin

clora

c (F

acet)

form

ula

tions

for g

rass

contr

ol i

n ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Rohw

erPl

anting

dat

e..............................................................

May

14, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.............................................................................N

/APl

ot si

ze......................................................................

4.5

ft b

y 17 ft

Cro

p/Var

iety

...............................................................Ri

ce /

Lem

ont

Row

wid

th /

Num

ber o

f row

s pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

.............................................................J

une

25, 1

997

Soil t

ype

.......................................S

ilty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H.........................................................................

3.5

/ 6

.7

Com

men

ts: PR

E =

pre

emer

gence

; DPR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; GR

= g

ranula

r fo

rmula

tion

; DF =

dry

flow

able

form

ula

tion

.App

licat

ion typ

ePR

ED

PR

EE

PO

ST

Dat

e ap

plie

dM

ay 1

4, 1

997

May

22,

199

7Ju

ne

5, 1

997

Tim

e4:

10 p

m1:

20 p

m7:

15 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)84

/ 6

875

/ 6

568

/ 6

7R

elat

ive

hum

idity

(%)

5659

85W

ind

(mph

, direc

tion)

5-10

5-8

2-5

Wea

ther

part

ly c

loudy

sunn

ysu

nny

Soi

l moi

sture

good

good

dry

Cro

p st

age/

Hei

ght

N/A

N/A

2-3

lf /

2-5"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

15 /

4 /

17

Gpa

/ P

si15

/ 2

015

/ 1

815

/ 2

2W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (2

0-25

/m2 )

N/A

N/A

1-3

lf /

1-3"

EC

HC

G (8

00-1

000/

m2)

N/A

N/A

1-3

lf /

0.5-

3"C

oncl

usi

ons:

Th

is s

tudy

eval

uat

ed t

he

75 D

F (dry

flo

wab

le) an

d 1

.5 G

R (gr

anu

lar)

for

mu

lati

ons

of q

uin

clor

ac a

t diffe

ren

t ap

plic

atio

n t

imin

gs. Lit

tle

to n

odiff

eren

ces

occu

rred

when

com

par

ing

the

two

form

ula

tion

s ap

plie

d P

RE

or

DPR

E. H

owev

er, w

hen

the

1.5

GR

form

ula

tion

was

applie

d E

PO

ST, b

arnya

rdgr

ass

contr

ol w

as s

ignifi

cantly

less

when

com

pare

d to

the

75 D

F fo

rmula

tion.

AAES RESEARCH SERIES 462

86

Tab

le 2

4.

Wee

d co

ntr

olPal

mle

afB

arnya

rdgr

ass

Hem

p se

sban

iam

ornin

gglo

ryApp

licat

ion

(EC

HC

G)

(SE

BE

X)

(IPO

WR

)R

ice

inju

ryH

erbi

cide

Rat

etim

ing

6/13

7/9

7/30

6/13

7/9

7/30

6/13

6/2

6/13

7/9

7/30

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

00

0Q

uin

clor

ac (1

.5 G

R)

0.25

PR

E90

7340

8973

3888

03

00

Quin

clor

ac (7

5 D

F)

0.25

PR

E90

6646

8164

3485

03

00

Quin

clor

ac (1

.5 G

R)

0.37

5PR

E95

7864

8980

6695

03

00

Quin

clor

ac (7

5 D

F)

0.37

5PR

E94

5844

8966

5092

01

00

Quin

clor

ac (1

.5 G

R)

0.5

PR

E96

8673

9583

6993

04

00

Quin

clor

ac (7

5 D

F)

0.5

PR

E95

7655

9683

5992

04

00

Quin

clor

ac (1

.5 G

R)

0.25

DPR

E86

7044

8573

3494

09

00

Quin

clor

ac (7

5 D

F)

0.25

DPR

E90

6444

9170

6693

05

00

Quin

clor

ac (1

.5 G

R)

0.37

5D

PR

E85

5140

8466

4088

04

00

Quin

clor

ac (7

5 D

F)

0.37

5D

PR

E93

7560

9478

6997

04

00

Quin

clor

ac (1

.5 G

R)

0.5

DPR

E89

8363

8876

6991

06

00

Quin

clor

ac (7

5 D

F)

0.5

DPR

E96

8565

9384

8096

05

00

Quin

clor

ac (7

5 D

F) +

0.25

thio

benca

rb2.

0D

PR

E93

7061

9681

7897

30

0Q

uin

clor

ac (1

.5 G

R)

0.25

EPO

ST

5655

5070

7363

736

00

Quin

clor

ac (7

5 D

F) +

0.25

Agr

i-D

ex (1

%)

EPO

ST

8484

7393

8886

936

00

Quin

clor

ac (1

.5 G

R)

0.37

5E

PO

ST

6971

4070

8083

705

00

Quin

clor

ac (7

5 D

F) +

0.37

5A

gri-D

ex (1

%)

EPO

ST

9086

6894

8683

905

00

Quin

clor

ac (1

.5 G

R0.

5E

PO

ST

6664

3161

8080

549

00

Quin

clor

ac (7

5 D

F) +

0.5

Agr

i-D

ex (1

%)

EPO

ST

9190

8997

8893

876

00

Quin

clor

ac (7

5 D

F) +

0.18

8(p

ropa

nil

+ m

olin

ate)

2.0

EPO

ST

9790

8597

9096

961

00

LSD

(0.0

5)

1415

148

913

10N

S5

NS

NS

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

87

Tab

le 2

5. Eva

luat

ion o

f F-8

42

6 fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 2

5. Eva

luat

ion o

f F-8

42

6 fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 2

5. Eva

luat

ion o

f F-8

42

6 fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 2

5. Eva

luat

ion o

f F-8

42

6 fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

Tab

le 2

5. Eva

luat

ion o

f F-8

42

6 fo

r ric

e w

eed c

ontr

ol,

Rohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................R

ohw

erPl

anting

dat

e...............................................................M

ay 1

4, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e...........................................................O

ctob

er 8

, 1997

Plot si

ze.......................................................................4

.5 ft

by 17 ft

Cro

p/Var

iety

...............................................................Ri

ce /

Lem

ont

Row

wid

th /

Num

ber o

f row

s pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

.............................................................J

une

25, 1

997

Soil t

ype

.......................................

Silty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H..........................................................................

3.5

/ 6

.7

Com

men

ts: P

RE

= p

reem

erge

nce

; D

PR

E =

del

ayed

pre

emer

gence

; E

PO

ST =

ear

ly p

oste

mer

gence

.App

licat

ion typ

ePR

ED

PR

EE

PO

ST

Dat

e ap

plie

dM

ay 1

4, 1

997

May

22,

199

7Ju

ne

5, 1

997

Tim

e4:

15 p

m9:

00 a

m7:

15 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)84

/ 6

866

/ 6

568

/ 6

7R

elat

ive

hum

idity

(%)

5670

85W

ind

(mph

, direc

tion)

5-10

5-9

2-5

Wea

ther

part

ly c

loudy

sunn

ysu

nny

Soi

l moi

sture

good

good

dry

Cro

p st

age/

Hei

ght

N/A

N/A

2-3

lf /

2-5"

Spr

ayer

type

/mph

BkP

kCO

2 /

3B

kPkC

O2 /

3B

kPkC

O2 /

3N

ozzl

e ty

pe/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

15 /

4 /

17

Gpa

/ P

si15

/ 2

015

/ 1

815

/ 2

2W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (4

-8/m

2)

N/A

N/A

1-3

lf /

2-3"

EC

HC

G (2

5-30

/m2 )

N/A

N/A

1-3

lf /

0.5-

2"IP

OW

R (6

/m2 )

N/A

N/A

1-4

lf /

1-3"

Con

clusi

ons:

This

stu

dy w

as d

esig

ned

to

eval

uat

e F-8

426

with c

lom

azon

e (C

omm

and)

. Wee

d co

ntr

ol d

iffer

ed li

ttle

am

ong

appl

icat

ion tim

ings

and

rate

s, a

nd

rice

yiel

ds d

id n

ot d

iffer

. Wee

d co

ntr

ol w

ith s

ulfe

ntr

azon

e (A

uth

ority)

app

lied

DPR

E o

r E

POST

was

exc

elle

nt, b

ut ri

ce w

as in

jure

d 75

and

64%

, res

pect

ivel

y.

AAES RESEARCH SERIES 462

88

Tab

le 2

5.

Wee

d co

ntr

olPal

mle

afB

arnya

rdgr

ass

Hem

p se

sban

iam

ornin

gglo

ryApp

licat

ion

(EC

HC

G)

(SE

BE

X)

(IPO

WR

)R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

127/

97/

296/

127/

96/

126/

26/

127/

97/

29yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

4444

Clo

maz

one

fb F

8426

+0.

6PR

EA

G-9

8 (0

.25%

)0.

01E

PO

ST

9790

8597

8970

86

00

4797

Clo

maz

one

fb F

8426

+0.

6PR

EA

G-9

8 (0

.25%

)0.

02E

PO

ST

9891

8198

8874

813

00

5340

Clo

maz

one

fb F

8426

+0.

6PR

EA

G-9

8 (0

.25%

)0.

03E

PO

ST

9891

8398

9097

1115

00

4975

Clo

maz

one

fb0.

6PR

EF84

26 +

0.02

prop

anil

1.0

EPO

ST

9890

9098

8997

118

00

4355

Clo

maz

one

fb0.

6PR

EF84

26 +

0.02

prop

anil

2.0

EPO

ST

9791

8598

8894

810

00

5580

Clo

maz

one

fb0.

6PR

EF84

26 +

0.02

prop

anil

4.0

EPO

ST

9793

8898

9087

913

00

5023

Clo

maz

one

fb0.

6PR

Eth

iobe

nca

rb4.

0E

PO

ST

9890

9389

7975

1110

00

4888

Clo

maz

one

fb0.

6PR

E(p

ropa

nil

+ m

olin

ate)

6.0

EPO

ST

9790

9798

9088

911

00

5517

Clo

maz

one

fb0.

6PR

Epr

opan

il4.

0E

PO

ST

9891

8595

8494

1110

00

4960

Clo

maz

one

fb0.

6PR

Equ

incl

orac

+0.

38A

gri-D

ex (1

%)

EPO

ST

9493

9797

9089

108

00

4600

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

89

Tab

le 2

5.

Con

tinued

.W

eed

contr

olPal

mle

afB

arnya

rdgr

ass

Hem

p se

sban

iam

ornin

gglo

ryApp

licat

ion

(EC

HC

G)

(SE

BE

X)

(IPO

WR

)R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

127/

97/

296/

127/

96/

126/

26/

127/

97/

29yi

eld

(lb/A

)(%

)(lb

/A)

Clo

maz

one

fb0.

6PR

Etr

iclo

pyr

0.22

EPO

ST

9891

8679

7688

99

00

5306

Clo

maz

one

+0.

6su

lfentr

azon

e0.

3PR

E97

9193

3333

8911

90

047

11C

lom

azon

e fb

0.6

PR

Esu

lfentr

azon

e0.

3D

PR

E98

9096

9885

9496

754

353

16C

lom

azon

e fb

0.6

PR

Esu

lfentr

azon

e +

0.3

AG

-98 (0

.25%

)E

PO

ST

9890

9595

8896

964

280

5258

LSD

(0.0

5)

43

1015

1325

46

4N

SN

S

AAES RESEARCH SERIES 462

90

Tab

le 2

6. Eva

luat

ion o

f ric

e w

eed c

ontr

ol p

rogra

ms

conta

inin

g thio

benca

rb (Bole

ro),

Rohw

er.

Tab

le 2

6. Eva

luat

ion o

f ric

e w

eed c

ontr

ol p

rogra

ms

conta

inin

g thio

benca

rb (Bole

ro),

Rohw

er.

Tab

le 2

6. Eva

luat

ion o

f ric

e w

eed c

ontr

ol p

rogra

ms

conta

inin

g thio

benca

rb (Bole

ro),

Rohw

er.

Tab

le 2

6. Eva

luat

ion o

f ric

e w

eed c

ontr

ol p

rogra

ms

conta

inin

g thio

benca

rb (Bole

ro),

Rohw

er.

Tab

le 2

6. Eva

luat

ion o

f ric

e w

eed c

ontr

ol p

rogra

ms

conta

inin

g thio

benca

rb (Bole

ro),

Rohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Rohw

erPl

anting

dat

e...............................................................M

ay 1

4, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e..............................................................................

N/A

Plot si

ze......................................................................

4.5

ft b

y 17 ft

Cro

p/Var

iety

...............................................................

Rice

/ L

emon

tRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

..............................................................

June

25, 1

997

Soil t

ype

.......................................S

ilty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H..........................................................................

3.5

/ 6

.7

Com

men

ts: A

pplic

atio

ns

bas

ed o

n r

ice

grow

th s

tage

. DPR

E =

del

ayed

pre

emer

gence

.App

licat

ion typ

eD

PR

E2-

3 lf

4-5

lfD

ate

appl

ied

May

22,

199

7Ju

ne

5, 1

997

June

23, 1

997

Tim

e1:

00 p

m10

:15

am7:

05 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)74

/ 6

572

/ 7

077

/ 7

8R

elat

ive

hum

idity

(%)

5970

92W

ind

(mph

, direc

tion)

5-10

2-5

0-2

Wea

ther

part

ly c

loudy

sunn

ysu

nny

Soi

l moi

sture

good

dry

good

Cro

p st

age/

Hei

ght

N/A

2-3

lf /

2-5"

4-5

lf /

8"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

18 /

4 /

17

15 /

4 /

17

18 /

4 /

17

Gpa

/ P

si15

/ 1

815

/ 2

215

/ 1

8W

eed s

pec

ies

(pop

ula

tion

)(h

eigh

t /

# le

aves

)SE

BE

X (1

5-20

/m2 )

N/A

1-3

lf /

1-3"

2-10

lf /

2-8

"E

CH

CG

(400

-600

/m2)

N/A

1-3

lf /

0.5-

3"3

lf - 2

till

/ 1-

8"C

oncl

usi

ons:

This

stu

dy

was

des

igned

to

eval

uat

e th

ioben

carb

(Bol

ero)

in r

ice

wee

d c

ontr

ol p

rogr

ams.

Bar

nya

rdgr

ass

contr

ol im

pro

ved w

hen

thio

ben

carb

plu

spen

dim

ethal

in (P

row

l) or

qu

incl

orac

(Fac

et) a

pplie

d D

PR

E w

as fo

llow

ed b

y a

PO

ST a

pplic

atio

n o

f pro

pan

il or

pro

pan

il plu

s m

olin

ate

at the

2-

to 3

-lea

f or

4-

to 5

-le

af s

tage

of r

ice.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

91

Tab

le 2

6.

Wee

d co

ntr

olB

arnya

rdgr

ass

Hem

p se

sban

iaApp

licat

ion

(EC

HC

G)

(SE

BE

X)

Ric

e in

jury

Her

bici

deR

ate

timin

g6/

26/

137/

97/

306/

136/

26/

137/

97/

30(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

0Th

iobe

nca

rb +

3.0

quin

clor

ac0.

5D

PR

E97

9179

7196

05

00

Thio

benca

rb +

2.0

quin

clor

ac fb

0.5

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

2-3

lf95

9890

9398

014

00

Thio

benca

rb +

4.0

pendi

met

hal

in1.

0D

PR

E92

9343

3497

05

00

Pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

2-3

lf88

9889

8698

015

00

Thio

benca

rb +

2.0

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

2.0

prop

anil

3.0

2-3

lf91

9053

4397

010

00

Thio

benca

rb +

2.0

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

4-5

lf93

9484

9093

08

00

Thio

benca

rb +

3.0

prop

anil

3.0

2-3

lf92

5531

9714

00

Thio

benca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

2-3

lf98

8990

9814

00

Thio

benca

rb +

2.0

prop

anil

fb3.

02-

3 lf

thio

benca

rb +

2.0

prop

anil

3.0

4-5

lf93

8991

9618

00

LSD

(0.0

5)

66

1015

3N

S6

NS

NS

AAES RESEARCH SERIES 462

92

Tab

le 2

7. Eva

luat

ion o

f V-1

00

29

for w

eed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

7. Eva

luat

ion o

f V-1

00

29

for w

eed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

7. Eva

luat

ion o

f V-1

00

29

for w

eed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

7. Eva

luat

ion o

f V-1

00

29

for w

eed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

7. Eva

luat

ion o

f V-1

00

29

for w

eed c

ontr

ol in ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Rohw

erPl

anting

dat

e...............................................................

May

14, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e............................................................

Oct

ober

8, 1

997

Plot si

ze.....................................................................4.5

ft b

y 17 ft

Cro

p/Var

iety

................................................................

Rice

/ L

emon

tRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

.............................................................

June

25, 1

997

Soil t

ype

.......................................S

ilty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H.........................................................................

3.5

/ 6

.7

Com

men

ts: App

licat

ions

base

d on

ric

e gr

owth

sta

ge. D

PRE

= d

elay

ed p

reem

erge

nce

; PO

FL

= po

st-flo

od; 1

Till

= 1

till

er.

App

licat

ion typ

eD

PR

E2-

3 lf

4-5

lfPO

FL

1 Ti

llD

ate

appl

ied

May

22,

199

7Ju

ne

5, 1

997

June

23, 1

997

July

8, 1

997

July

11,

199

7Ti

me

1:45

pm

11:0

0 am

9:10

am

9:00

am

7:53

a.m

.In

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)75

/ 6

576

/ 7

186

/ 7

883

/ 8

180

/ 7

8R

elat

ive

hum

idity

(%)

5966

8482

82W

ind

(mph

, direc

tion)

5-8

2-5

0-2

5-10

0-3

Wea

ther

sunn

ysu

nny

sunn

ypa

rtly

clo

udy

part

ly c

loudy

Soi

l moi

sture

good

dry

good

wet

wet

Cro

p st

age/

Hei

ght

N/A

2-3

lf /

2-5"

5 lf

/ 10

"4-

5 lf

12-1

6 lf

/ PI

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

18 /

4 /

17

15 /

4 /

17

18 /

4 /

17

19 /

4 /

18

18 /

4 /

17

Gpa

/ P

si15

/ 1

815

/ 2

015

/ 1

815

/ 2

115

/ 1

8W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (1

5-20

/m2 )

N/A

1-3

lf /

1-3"

2-8

lf /

1-6"

2-8

lf /

1-6"

8-15

lf /

6-1

2"E

CH

CG

(40-

50/m

2 )N/

A1-

3 lf

/ 0.

5-3"

2-5

lf /

1-3"

2-5

lf /

1-3"

2-3

till /

12-

16"

IPO

WR

(5-8

/m2)

N/A

cot.-

2 lf

/ 0.

5-3"

1-4

lf /

1-4"

1-4

lf /

1-4"

1-4

lf /

1-4"

Con

clusi

ons:

This

stu

dy

eval

uat

ed b

arnya

rdgr

ass,

hem

p s

esban

ia a

nd p

alm

leaf

mor

nin

gglo

ry c

ontr

ol w

ith V

-10029. A

t th

e Ju

ly 3

0 r

atin

g, b

arnya

rdgr

ass

and

hem

p se

sban

ia c

ontr

ol w

as g

reat

er than

90%

and

palm

leaf

mor

nin

gglo

ry c

ontr

ol w

as g

reat

er than

85%

with a

ny

com

binat

ion c

onta

inin

g V

-100

29. A

ll tr

eatm

ents

with

V-1

0029

exc

ept V

-100

29 b

y its

elf a

nd

thio

benca

rb +

pro

panil

fb V

-100

29 +

thio

benca

rb y

ield

ed b

ette

r th

an the

untr

eate

d ch

eck.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

93

Tab

le 2

7.

Wee

d co

ntr

olB

arnya

rdgr

ass

Hem

p se

sban

ia

Pal

mle

af m

ornin

gglo

ryApp

licat

ion

(EC

HC

G)

(SE

BE

X)

(IPO

WR

)R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

137/

97/

306/

137/

97/

306/

137/

97/

306/

26/

137/

97/

30yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

00

025

74V

1002

9 +

0.02

Kin

etic

(0.2

5%)

PI

9497

870

2266

(Pro

panil

+ m

olin

ate)

6.0

PI

7097

500

3592

V-1

0029

+0.

02K

inet

ic (0

.25%

) fb

4-5

lftr

iclo

pyr

0.28

PO

FL

8688

9785

9497

6589

973

00

4712

(Pro

panil

+ m

olin

ate)

4.5

4-5

lffb

tric

lopy

r0.

28PO

FL

9290

9389

9498

7993

985

00

4168

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

lf95

9592

9395

9784

9388

09

00

4398

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il4.

04-

5 lf

9494

9493

9598

8191

870

90

045

91Th

iobe

nca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

lf93

9594

8995

9880

9094

05

00

4168

Thio

benca

rb fb

3.0

DPR

E(p

ropa

nil

+ m

olin

ate)

4.5

4-5

lf89

9596

8095

9571

9387

03

00

4533

Thio

benca

rb +

2.0

prop

anil

fb3.

02-

3 lf

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

4-5

lf96

9597

9795

9793

9597

210

038

60Th

iobe

nca

rb +

2.0

prop

anil

fb3.

02-

3 lf

thio

benca

rb +

2.0

prop

anil

3.0

4-5

lf96

9597

9895

9791

9597

250

046

10 conti

nued

AAES RESEARCH SERIES 462

94

Tab

le 2

7.

Con

tinued

.W

eed

contr

olB

arnya

rdgr

ass

Hem

p se

sban

ia

Pal

mle

af m

ornin

gglo

ryApp

licat

ion

(EC

HC

G)

(SE

BE

X)

(IPO

WR

)R

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

137/

97/

306/

137/

97/

306/

137/

97/

306/

26/

137/

97/

30yi

eld

(lb/A

)(%

)(lb

/A)

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.03

8K

inet

ic (0

.25%

)4-

5 lf

9395

9792

9597

8195

970

80

043

22Pe

ndi

met

hal

in fb

1.0

bensu

lfuro

n +

0.03

8pr

opan

il3.

04-

5 lf

9395

8695

9598

8193

940

100

041

68Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.03

8K

inet

ic (0

.25%

)PO

FL

9793

9492

7697

8070

940

90

044

37Pe

ndi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n0.

038

PO

FL

9393

7093

7593

7976

770

60

039

18Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

PO

FL

9093

9793

7698

7483

980

90

043

99Pe

ndi

met

hal

in fb

1.0

DPR

Em

olin

ate

4.0

PO

FL

9290

9395

7479

8188

690

100

028

04Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

PO

FL

9295

9693

7695

7669

900

50

041

10Pe

ndi

met

hal

in fb

1.0

DPR

Em

olin

ate

+4.

0tr

iclo

pyr

0.28

PO

FL

9695

9593

8097

8483

970

90

041

10Th

iobe

nca

rb +

2.0

prop

anil

fb3.

02-

3 lf

V-1

0029

+0.

02th

iobe

nca

rb2.

04-

5 lf

9695

9598

9597

8895

9721

00

4321

LSD

(0.0

5)

74

87

74

98

12N

S5

NS

NS

1320

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

95

Tab

le 2

8. Pre

em

erg

ence

weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

8. Pre

em

erg

ence

weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

8. Pre

em

erg

ence

weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

8. Pre

em

erg

ence

weed c

ontr

ol i

n ri

ce, R

ohw

er.

Tab

le 2

8. Pre

em

erg

ence

weed c

ontr

ol i

n ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Rohw

erPl

anting

dat

e..............................................................

May

14, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e............................................................

Oct

ober

7, 1

997

Plot si

ze......................................................................

4.5

ft b

y 17 ft

Cro

p/Var

iety

...............................................................Ri

ce /

Lem

ont

Row

wid

th /

Num

ber o

f row

s pe

r plo

t....................................

6.5

in / 9

row

sD

ate

of F

lood

............................................................

June

25, 1

997

Soil t

ype

.......................................S

ilty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H..........................................................................

3.5

/ 6

.7

Com

men

ts: P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; EC

= e

mu

lsifi

able

con

centr

ate

form

ula

tion

; ME

= m

icro

-en

caps

ula

ted

form

ula

tion.

App

licat

ion typ

ePR

ED

PR

EE

PO

ST

Dat

e ap

plie

dM

ay 1

4, 1

997

May

22,

199

7Ju

ne

5, 1

997

Tim

e3:

15 p

m7:

00 a

m6:

30 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)84

/ 6

864

/ 6

568

/ 6

7R

elat

ive

hum

idity

(%)

5654

72W

ind

(mph

, direc

tion)

5-10

4-6

2-4

Wea

ther

part

ly c

loudy

sunn

ysu

nny

Soi

l moi

sture

good

good

dry

Cro

p st

age/

Hei

ght

N/A

N/A

2-3

lf /

2-5"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 /

3B

kPkC

O2 /

3N

ozzl

e ty

pe/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

15 /

4 /

17

18 /

4 /

17

15 /

4 /

17

Gpa

/ P

si15

/ 2

015

/ 1

815

/ 2

2W

eed s

pec

ies

(pop

ula

tion

) (h

eigh

t /

# le

aves

)SE

BE

X (6

-10/

m2)

N/A

N/A

2-3

lf /

1-3"

EC

HC

G (1

2-15

/m2 )

N/A

N/A

2-3

lf /

0.5-

2"C

oncl

usi

ons:

Th

is s

tudy

eval

uat

ed p

reem

erge

nce

tim

ings

of cl

omaz

one

(Com

man

d) co

mpar

ed t

o st

andar

d D

PR

E p

rogr

ams.

Bar

nya

rdgr

ass

con

trol

was

gener

ally

gre

ater

than

90%

at th

e ea

rly

rating

acro

ss tre

atm

ents

. Clo

maz

one

at a

ll ra

tes

PPI an

d a

t 0.6

lb/A

PR

E o

r D

PR

E h

ad 1

0% o

r gr

eate

r ri

ce in

jury

at th

eea

rlie

st r

atin

g dat

e. H

owev

er, ri

ce in

jury

was

gon

e ap

pro

xim

atel

y 8 w

eeks

late

r. In

gen

eral

, cl

omaz

one

applie

d D

PR

E o

r E

PO

ST d

id n

ot im

pro

ve r

ice

yiel

dco

mpa

red

to the

untr

eate

d ch

eck.

AAES RESEARCH SERIES 462

96

Tab

le 2

8.

Wee

d co

ntr

olB

arnya

rdgr

ass

Hem

p se

sban

iaApp

licat

ion

(EC

HC

G)

(SE

BE

X)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/13

7/9

7/29

6/13

7/9

6/2

6/13

7/9

7/29

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

00

040

27C

lom

azon

e (4

EC

)0.

4PPI

9888

9664

5811

60

045

91C

lom

azon

e (4

EC

)0.

5PPI

9689

9381

6616

140

048

59C

lom

azon

e (4

EC

)0.

6PPI

9789

8969

6113

110

047

95Q

uin

clor

ac0.

375

PPI

9889

8890

845

40

050

39Q

uin

clor

ac0.

5PPI

9886

9395

844

80

053

71C

lom

azon

e (4

EC

) +0.

5qu

incl

orac

0.37

5PPI

9893

9597

895

60

047

57C

lom

azon

e (3

ME

)0.

4PR

E96

8892

7455

96

00

4987

Clo

maz

one

(3M

E)

0.5

PR

E93

8690

6360

118

00

4578

Clo

maz

one

(3M

E)

0.6

PR

E98

8891

8158

86

00

5314

Quin

clor

ac0.

5PR

E98

9184

9789

45

00

5083

Clo

maz

one

(3M

E) +

0.5

quin

clor

ac0.

375

PR

E98

9092

9784

58

00

4883

Clo

maz

one

(3M

E)

0.4

DPR

E94

8895

7449

98

00

4230

Clo

maz

one

(3M

E)

0.5

DPR

E89

8554

8869

56

00

4562

Clo

maz

one

(3M

E)

0.6

DPR

E98

8890

6661

104

00

5102

Quin

clor

ac0.

25D

PR

E59

8648

4951

51

00

4331

Quin

clor

ac0.

375

DPR

E98

8993

9483

56

00

4328

Clo

maz

one

(3M

E) +

0.5

quin

clor

ac0.

375

DPR

E90

9069

8463

56

00

4507

Clo

maz

one

(3M

E) +

0.4

quin

clor

ac0.

25D

PR

E97

9096

9588

58

00

4712

Thio

benca

rb4.

0D

PR

E90

8654

5160

45

00

4005

Pendi

met

hal

in1.

0D

PR

E98

9088

9076

88

00

4979

Clo

maz

one

(4E

C) +

0.5

thio

benca

rb2.

0D

PR

E95

8886

8358

99

00

4552

Clo

maz

one

(4E

C) +

0.5

pendi

met

hal

in1.

0D

PR

E98

9093

9380

106

00

5275

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

97

Tab

le 2

8.

Con

tinued

.W

eed

contr

olB

arnya

rdgr

ass

Hem

p se

sban

iaApp

licat

ion

(EC

HC

G)

(SE

BE

X)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/13

7/9

7/29

6/13

7/9

6/2

6/13

7/9

7/29

yiel

d(lb

/A)

(%)

(lb/A

)

Quin

clor

ac +

0.37

5th

iobe

nca

rb2.

0D

PR

E93

8991

9283

55

00

4917

Quin

clor

ac +

0.37

5pe

ndi

met

hal

in1.

0D

PR

E97

9092

9789

58

00

5486

Quin

clor

ac +

0.25

thio

benca

rb2.

0D

PR

E98

8997

9583

54

00

4898

Quin

clor

ac +

0.25

pendi

met

hal

in1.

0D

PR

E98

9196

9389

56

00

4499

Clo

maz

one

(3M

E)

0.4

EPO

ST

8689

9369

514

00

4543

Clo

maz

one

(3M

E)

0.5

EPO

ST

9389

9579

5910

00

5289

Clo

maz

one

(3M

E)

0.6

EPO

ST

9591

9580

6513

00

4648

LSD

(0.0

5)

105

1013

115

6N

SN

S72

0

AAES RESEARCH SERIES 462

98

Tab

le 2

9. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

9. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

9. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

9. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, R

ohw

er.

Tab

le 2

9. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, R

ohw

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................R

ohw

erPl

anting

dat

e..............................................................

May

14, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

.................................................R

CB /

4Har

vest

dat

e..............................................................................

N/A

Plot si

ze.......................................................................4.5

ft b

y 17 ft

Cro

p/Var

iety

...............................................................Ri

ce /

Lem

ont

Row

wid

th /

Num

ber o

f row

s pe

r plo

t.....................................6

.5 in

/ 9

row

sD

ate

of F

lood

............................................................

June

25, 1

997

Soil t

ype

........................................

Silty

clay

(8%

san

d, 4

9%

silt

, 43%

cla

y)%

OM

/ p

H...........................................................................

3.5

/ 6

.7

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; PR

EFL

= pre

flood

; PO

FL

= pos

tflo

od.

App

licat

ion typ

eD

PR

EE

PO

ST

PR

EFL

PO

FL

Dat

e ap

plie

dM

ay 2

2, 1

997

June

5, 1

997

June

23, 1

997

July

8, 1

997

Tim

e1:

15 p

m11

:00

am6:

55 a

m7:

15 a

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)75

/ 6

572

/ 7

077

/ 7

883

/ 8

1R

elat

ive

hum

idity

(%)

5970

9082

Win

d (m

ph, d

irec

tion)

5-8

2-5

05-

10W

eath

ersu

nny

sunn

ysu

nny

part

ly c

loudy

Soi

l moi

sture

good

dry

good

wet

Cro

p st

age/

Hei

ght

N/A

2-3

lf /

2-5"

4-5

lf /

8"4-

5 lf

/ 15

"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eFF

/ 1

1002

FF /

110

02FF

/ 1

1002

FF /

110

02B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

4 /

17

15 /

4 /

17

18 /

4 /

17

15 /

4 /

17

Gpa

/ P

si15

/ 1

815

/ 2

215

/ 1

815

/ 2

2W

eed s

pec

ies

(pop

ula

tion

)(h

eigh

t /

# le

aves

)SE

BE

X (6

-10/

m2)

N/A

1-3

lf /

1-3"

3-6

lf /

2-3"

3-10

lf /

2-6

"E

CH

CG

(12-

15/m

2 )N/

A1-

3 lf

/ 0.

5-2"

3-6

lf /

2-5"

5 lf

- 3 ti

ll /

5-10

"C

oncl

usi

ons:

This

stu

dy e

valu

ated

thio

benca

rb (B

oler

o) fo

r ba

rnya

rdgr

ass

contr

ol. L

ittle

to n

o di

ffere

nce

in b

arnya

rdgr

ass

contr

ol o

ccurr

ed b

etw

een tre

atm

ents

acro

ss r

atin

g da

tes.

Ric

e in

jury

was

abo

ve 1

0% fo

r se

vera

l tre

atm

ents

at ea

rly

rating;

how

ever

, no

inju

ry w

as o

bser

ved

at the

last

rat

ing.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

99

Tab

le 2

9.

App

licat

ion

Bar

nya

rdgr

ass

(EC

HC

G) c

ontr

olR

ice

inju

ryH

erbi

cide

Rat

etim

ing

6/2

6/13

7/9

7/30

6/2

6/13

7/9

7/30

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

Quin

clor

ac +

0.5

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb3.

0PR

EFL

9097

8696

05

00

Quin

clor

ac +

0.5

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb4.

0PR

EFL

8895

8492

08

00

Prop

anil

fb3.

0E

PO

ST

thio

benca

rb3.

0PR

EFL

9086

8613

00

Prop

anil

fb3.

0E

PO

ST

thio

benca

rb4.

0PR

EFL

9481

859

00

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

thio

benca

rb3.

0PR

EFL

9590

9211

00

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

thio

benca

rb4.

0PR

EFL

9686

9410

00

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

bensu

lfuro

n0.

038

PO

FL

9584

8110

00

LSD

(0.0

5)

83

710

NS

5N

SN

S

AAES RESEARCH SERIES 462

100

Tab

le 3

0. C

lom

azone (C

om

man

d) in

jury

on ri

ce (ro

lled v

s. n

ot ro

lled s

eedbed),

Lonoke

.Tab

le 3

0. C

lom

azone (C

om

man

d) in

jury

on ri

ce (ro

lled v

s. n

ot ro

lled s

eedbed),

Lonoke

.Tab

le 3

0. C

lom

azone (C

om

man

d) in

jury

on ri

ce (ro

lled v

s. n

ot ro

lled s

eedbed),

Lonoke

.Tab

le 3

0. C

lom

azone (C

om

man

d) in

jury

on ri

ce (ro

lled v

s. n

ot ro

lled s

eedbed),

Lonoke

.Tab

le 3

0. C

lom

azone (C

om

man

d) in

jury

on ri

ce (ro

lled v

s. n

ot ro

lled s

eedbed),

Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e.................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

3Har

vest

dat

e.....................................................

Sept

embe

r 16, 1

997

Plot si

ze.......................................................................10 ft

by 50 ft

Crop

/Var

iety

...............................................................R

ice

/ Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.0

/ 4

.9

Com

men

ts: P

PI’s

wer

e ap

plie

d to

em

erge

d 1-

to

2-le

af (6

0/ft

2) b

road

leaf

sig

nal

gras

s an

d in

corp

orat

ed tw

ice.

See

dbed

was

rol

led

in a

ppro

pria

te p

lots

. PP

I =pre

pla

nt in

corp

orat

ed; P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

.App

licat

ion typ

ePPI

PR

ED

PR

ED

ate

appl

ied

May

7, 1

997

May

7, 1

997

May

12,

199

7Ti

me

8:50

am

5:00

pm

2:50

pm

Inco

rpor

atio

n e

quip

men

tS-T

ine

N/A

N/A

Air/S

oil t

empe

ratu

re (F

)70

/ 6

078

/ 7

060

/ 6

2R

elat

ive

hum

idity

(%)

4544

54W

ind

(mph

, direc

tion)

33

4W

eath

erpa

rtly

clo

udy

mos

tly c

loudy

clou

dySoi

l moi

sture

moi

stm

oist

moi

stC

rop

stag

e/H

eigh

tN/

AN/

AN/

ASpr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 /

3B

kPkC

O2 /

3N

ozzl

e ty

pe/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

18 /

6 /

20

18 /

6 /

20

Gpa

/ P

si10

/ 2

310

/ 2

310

/ 2

3C

oncl

usi

ons:

We

hav

e re

port

ed le

ss in

jury

from

PPI

tre

atm

ents

with C

omm

and

than

oth

er in

vest

igat

ors.

We

felt it

may

hav

e be

en d

ue

to r

ollin

g an

d pl

anting

in a

firm

see

dbed

. In

this

stu

dy

we

look

ed a

t 0.5

lb/A

of C

omm

and a

t va

riou

s tim

ings

wher

e th

e se

edbed

was

rol

led fi

rm p

rior

to

pla

nting

or n

ot r

olle

d r

esultin

g in

alo

ose

seed

bed

. Ther

e w

as a

litt

le m

ore

PPI in

jury

in g

ener

al, b

ut no

concl

usi

ve d

iffer

ence

s, b

etw

een r

ollin

g or

not

rol

ling.

While

not

sig

nifi

cantly

diff

eren

t, y

ield

tren

ds w

ere

low

er in

the

PPI t

reat

men

ts.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

101

Tab

le 3

0.

Bro

adle

af s

ignal

gras

sApp

licat

ion

(BR

APP) c

ontr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g5/

225/

306/

175/

225/

306/

176/

277/

228/

219/

2yi

eld

(lb/A

)(%

)(lb

/A)

Tre

atm

ents

1-5

rol

led:

Pendi

met

hal

in +

1.0

quin

clor

ac0.

25D

PR

E10

098

100

020

133

00

567

05C

lom

azon

e (4

EC

)0.

5PPI

100

9510

047

3530

170

00

5985

Clo

maz

one

(3M

E)

0.5

PPI

100

9510

030

2847

337

33

5670

Clo

maz

one

(3M

E)

0.5

PR

E10

093

100

4018

1712

00

064

35C

lom

azon

e (3

ME

)0.

5D

PR

E10

095

100

4717

155

00

056

70

Tre

atm

ents

6-1

0 n

ot-r

olle

d:Pe

ndi

met

hal

in +

1.0

quin

clor

ac0.

25D

PR

E10

098

100

713

03

00

067

05C

lom

azon

e (4

EC

)0.

5PPI

100

9710

030

4542

3213

78

5625

Clo

maz

one

(3M

E)

0.5

PPI

100

9510

037

2535

202

00

5445

Clo

maz

one

(3M

E)

0.5

PR

E10

092

100

5017

233

00

065

25C

lom

azon

e (3

ME

)0.

5D

PR

E10

095

100

4717

105

00

063

00

LSD

(0.0

5)

NS

NS

NS

1313

108

NS

NS

NS

NS

AAES RESEARCH SERIES 462

102

Tab

le 3

1. C

lom

azone (Com

man

d 3

ME) an

d q

uin

clora

c (F

acet)

leve

e c

ontr

ol,

Lonoke

.Tab

le 3

1. C

lom

azone (Com

man

d 3

ME) an

d q

uin

clora

c (F

acet)

leve

e c

ontr

ol,

Lonoke

.Tab

le 3

1. C

lom

azone (Com

man

d 3

ME) an

d q

uin

clora

c (F

acet)

leve

e c

ontr

ol,

Lonoke

.Tab

le 3

1. C

lom

azone (Com

man

d 3

ME) an

d q

uin

clora

c (F

acet)

leve

e c

ontr

ol,

Lonoke

.Tab

le 3

1. C

lom

azone (Com

man

d 3

ME) an

d q

uin

clora

c (F

acet)

leve

e c

ontr

ol,

Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Lono

kePl

anting

dat

e.................................................................M

ay 7

, 1997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

3Har

vest

dat

e.............................................................................N/

APl

ot si

ze.......................................................................10 ft

by 50 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................S

ilt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H.........................................................................

1.0

/ 4

.9

Com

men

ts: PP

I’s w

ere

appl

ied

to 1

- to

2-lea

f bro

adle

af s

ignal

gras

s an

d in

corp

orat

ed tw

ice.

PPI

= p

repl

ant in

corp

orat

ed; P

RE

= p

reem

erge

nce

.App

licat

ion typ

ePPI

PR

ED

ate

appl

ied

May

7, 1

997

May

7, 1

997

Tim

e8:

50 a

m3:

40 p

mIn

corp

orat

ion e

quip

men

tS-T

ine

N/A

Air/S

oil t

empe

ratu

re (F

)70

/ 6

078

/ 7

0R

elat

ive

hum

idity

(%)

4544

Win

d (m

ph, d

irec

tion)

33

Wea

ther

part

ly c

loudy

mos

tly c

loudy

Soi

l moi

sture

moi

stm

oist

Cro

p st

age/

Hei

ght

N/A

N/A

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

18 /

6 /

20

Gpa

/ P

si10

/ 2

310

/ 2

3C

oncl

usi

ons:

This

stu

dy

was

des

igned

to

com

par

e w

eed c

ontr

ol w

hen

her

bic

ides

wer

e ap

plie

d o

n fl

at g

rou

nd b

efor

e pu

lling

the

leve

es (t

rts.

2, 4

, 7 a

nd 9

), w

hen

addi

tion

al h

erbi

cide

was

app

lied

to the

leve

es a

fter

form

atio

n (t

rts.

3, 5

, and

8), a

nd

when

bot

h the

padd

y an

d le

vee

wer

e sp

raye

d af

ter

leve

e fo

rmat

ion (t

rts.

6 a

nd

10).

Plo

ts w

ith a

dditio

nal

her

bici

de a

pplie

d to

the

leve

es o

r sp

raye

d af

ter

leve

e fo

rmat

ion h

ad the

best

wee

d co

ntr

ol.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

103

Tab

le 3

1.

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olApp

licat

ion

Plo

tsLev

ees

Her

bici

deR

ate

timin

g5/

225/

306/

277/

229/

25/

306/

176/

277/

229/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

Clo

maz

one

(pu

ll le

vee)

0.5

PPI

100

9093

100

100

5753

274

31C

lom

azon

e (p

ull

leve

e) fb

0.5

PPI

clom

azon

e (s

pra

y0.

3le

vee

only

)PR

E10

090

100

100

9377

9480

4318

Clo

maz

one

(pu

ll le

vee)

0.5

PR

E10

093

100

100

100

6758

355

35C

lom

azon

e (p

ull

leve

e) +

0.5

clom

azon

e (s

pra

y0.

3le

vee

only

)PR

E10

092

100

100

100

7896

8032

34Pu

ll le

vee;

clo

maz

one

0.5

PR

E(s

pra

y plo

t an

d le

vee)

100

9210

010

010

078

9477

2046

Quin

clor

ac (p

ull

leve

e)0.

375

PPI

100

9510

010

010

053

7453

1857

Quin

clor

ac (p

ull

leve

e) fb

0.37

5PPI

quin

clor

ac (s

pray

0.25

PR

Ele

vee

only

)10

093

100

100

100

8795

7847

53Q

uin

clor

ac (p

ull

leve

e)0.

375

PR

E10

093

100

100

100

7068

3817

55Pu

ll le

vee;

quin

clor

ac0.

375

PR

E(s

pra

y plo

t an

d le

vee)

100

9510

010

010

087

9783

4238

LSD

(0.0

5)

14

61

620

1324

1420 co

nti

nued

AAES RESEARCH SERIES 462

104

Tab

le 3

1.

Con

tinued

.App

licat

ion

Ric

e in

jury

Her

bici

deR

ate

timin

g5/

225/

306/

176/

277/

229/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

Clo

maz

one

(pu

ll le

vee)

0.5

PPI

2228

280

00

Clo

maz

one

(pu

ll le

vee)

fb0.

5PPI

clom

azon

e (s

pra

y0.

3le

vee

only

)PR

E30

3533

80

7C

lom

azon

e (p

ull

leve

e)0.

5PR

E40

2212

50

0C

lom

azon

e (p

ull

leve

e) +

0.5

clom

azon

e (s

pra

y0.

3le

vee

only

)PR

E72

2825

00

0Pu

ll le

vee;

clo

maz

one

0.5

PR

E(s

pra

y plo

t an

d le

vee)

5822

80

00

Quin

clor

ac (p

ull

leve

e)0.

375

PPI

310

00

00

Quin

clor

ac (p

ull

leve

e) fb

0.37

5PPI

quin

clor

ac (s

pray

0.25

PR

Ele

vee

only

)7

100

00

0Q

uin

clor

ac (p

ull

leve

e)0.

375

PR

E10

100

00

0Pu

ll le

vee;

quin

clor

ac0.

375

PR

E(s

pra

y plo

t an

d le

vee)

1512

00

00

LSD

(0.0

5)

156

9N

SN

SN

S

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

105

Tab

le 3

2. C

lom

azone (C

om

man

d) in

ric

e, L

onoke

.Tab

le 3

2. C

lom

azone (C

om

man

d) in

ric

e, L

onoke

.Tab

le 3

2. C

lom

azone (C

om

man

d) in

ric

e, L

onoke

.Tab

le 3

2. C

lom

azone (C

om

man

d) in

ric

e, L

onoke

.Tab

le 3

2. C

lom

azone (C

om

man

d) in

ric

e, L

onoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.....................................................

Sept

embe

r 17, 1

997

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.0

/ 4

.9

Com

men

ts: P

PI’s

wer

e ap

plie

d to

em

erge

d br

oadl

eaf s

ignal

gras

s (1

- to

2-lf,

appr

ox 3

0/ft

2 ), then

inco

rpor

ated

with a

fiel

d cu

ltiv

ator

to

a de

pth o

f 3 in

. Lig

ht ra

infa

lloc

curr

ed d

uri

ng

DPR

E a

pplic

atio

n.

PPI =

pre

plan

t in

corp

orat

ed; P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; ME

= m

icro

enca

psula

ted

form

ula

tion

;G

= g

ranula

r fo

rmula

tion.

App

licat

ion typ

ePPI

PR

ED

PR

ED

ate

appl

ied

May

7, 1

997

May

7, 1

997

May

12,

199

7Ti

me

8:50

am

2:00

pm

3:15

pm

Inco

rpor

atio

n e

quip

men

tS-T

ine

N/A

N/A

Air/S

oil t

empe

ratu

re (F

)70

/ 6

078

/ 7

060

/ 6

2R

elat

ive

hum

idity

(%)

4544

66W

ind

(mph

, direc

tion)

33

4W

eath

erpa

rtly

clo

udy

mos

tly c

loudy

clou

dySoi

l moi

sture

moi

stm

oist

moi

stC

rop

stag

e/H

eigh

tN/

AN/

AN/

ASpr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

18 /

6 /

20

18 /

6 /

20

Gpa

/ P

si10

/ 2

310

/ 2

310

/ 2

4W

eed s

pec

ies

(hei

ght /

# le

aves

)B

RA

PP

1-2

lfC

oncl

usi

ons:

Th

ere

was

sig

nific

ant

inju

ry e

arly

fro

m h

igh

er r

ates

of cl

omaz

one

at a

ll ti

min

gs. Th

ere

was

exc

elle

nt

bro

adle

af s

ign

algr

ass

con

trol

in

mos

ttr

eatm

ents

. Rat

es o

f 0.3

to

0.4

lb/A

con

tinue

to b

e ve

ry c

onsi

sten

t w

ith li

ttle

inju

ry o

n s

ilt lo

am s

oils

. Clo

maz

one

continues

to b

e ve

ry p

rom

isin

g as

a r

ice

her

bici

de.

The

3 M

E fo

rmula

tion to

date

has

bee

n m

ore

consi

sten

t in

per

form

ance

than

the

3G.

AAES RESEARCH SERIES 462

106

Tab

le 3

2App

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g5/

225/

306/

176/

277/

228/

218/

275/

225/

306/

176/

277/

228/

21yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

00

038

25C

lom

azon

e (3

ME

)0.

3PPI

9378

8495

9896

9419

2315

10

066

15C

lom

azon

e (3

ME

)0.

4PPI

100

8399

8810

010

096

2825

194

00

5625

Clo

maz

one

(3M

E)

0.5

PPI

100

8310

099

100

100

100

2129

3916

00

4995

Clo

maz

one

(3M

E)

0.6

PPI

100

8510

095

100

100

9940

3648

280

051

75C

lom

azon

e (3

ME

)0.

3PR

E99

8610

010

010

010

098

2516

60

00

6435

Clo

maz

one

(3M

E)

0.4

PR

E10

086

100

100

100

100

100

4321

114

03

6030

Clo

maz

one

(3M

E)

0.5

PR

E89

8510

098

100

100

100

4030

2312

00

5535

Clo

maz

one

(3M

E)

0.6

PR

E10

088

100

9810

010

010

055

3931

130

058

95C

lom

azon

e (3

G)

0.4

PR

E89

7691

9398

9994

4326

268

00

5535

Clo

maz

one

(3G

)0.

5PR

E76

8095

9110

095

8948

2528

80

054

00C

lom

azon

e (3

G)

0.6

PR

E90

8510

098

100

9695

4835

3519

00

5445

Clo

maz

one

(3M

E)

0.3

DPR

E63

8598

9910

010

010

033

2010

100

058

95C

lom

azon

e (3

ME

)0.

4D

PR

E86

8410

099

100

100

100

4523

93

00

6075

Clo

maz

one

(3M

E)

0.5

DPR

E93

8310

098

100

100

100

3530

153

00

6525

Clo

maz

one

(3M

E)

0.6

DPR

E90

8510

098

100

100

100

5526

199

03

5850

Clo

maz

one

(3G

)0.

4D

PR

E73

8398

9899

9998

4025

336

00

5805

Clo

maz

one

(3G

)0.

5D

PR

E93

8510

096

100

9910

038

2930

140

061

20C

lom

azon

e (3

G)

0.6

DPR

E78

8198

9510

010

095

4828

3423

00

5940

Quin

clor

ac0.

25PPI

9888

9399

100

9910

00

101

00

058

50Q

uin

clor

ac0.

375

PPI

100

8910

010

010

010

010

00

141

00

064

35Q

uin

clor

ac0.

25PR

E95

8810

096

100

100

100

010

00

00

6615

Quin

clor

ac0.

375

PR

E10

090

100

100

100

100

100

513

34

00

6885

Quin

clor

ac0.

375

DPR

E10

090

100

100

100

100

100

811

04

00

6705

Thio

benca

rb4.

0D

PR

E63

4053

7360

3548

310

03

00

5265

Pendi

met

hal

in1.

0D

PR

E85

5573

7358

6348

011

00

00

5490

Clo

maz

one

(3M

E) +

0.3

quin

clor

ac0.

25PPI

9886

100

9310

010

010

015

2123

80

068

40C

lom

azon

e (3

ME

) +0.

3qu

incl

orac

0.25

PR

E93

7998

9610

010

099

3021

114

00

6165

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

107

Tab

le 3

2. C

onti

nued

.App

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g5/

225/

306/

176/

277/

228/

218/

275/

225/

306/

176/

277/

228/

21yi

eld

(lb/A

)(%

)(lb

/A)

Clo

maz

one

(3M

E) +

0.3

quin

clor

ac0.

25D

PR

E90

8999

9610

010

098

2311

43

00

6165

Clo

maz

one

(3M

E) +

0.3

thio

benca

rb2.

0D

PR

E83

8198

9999

9995

2814

03

00

6795

LSD

(0.0

5)

108

57

44

910

610

13N

S3

1116

AAES RESEARCH SERIES 462

108

Tab

le 3

3. IM

I-to

lera

nt rice

, Lonoke

.Tab

le 3

3. IM

I-to

lera

nt rice

, Lonoke

.Tab

le 3

3. IM

I-to

lera

nt rice

, Lonoke

.Tab

le 3

3. IM

I-to

lera

nt rice

, Lonoke

.Tab

le 3

3. IM

I-to

lera

nt rice

, Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................Lo

noke

Plan

ting

dat

e.................................................................M

ay 8

, 1997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e..............................................................................

N/A

Plot si

ze........................................................................

10 ft

by 20 ft

Crop

/Var

iety

.........................................Ric

e /

IMI r

ice

- 93A

S3510 IT

Row

wid

th /

Num

ber o

f row

s pe

r plo

t.....................................7 in

/ 1

7 ro

ws

Dat

e of

Flo

od...................................................J

une

19 a

nd 2

0, 1

997

Soil t

ype

........................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H...........................................................................1

.9 / 4

.6

Com

men

ts: I

MI-

tole

rant rice

is g

enet

ical

ly tra

nsf

orm

ed to

tole

rate

imid

azol

inon

e her

bici

des.

Augu

st 2

0 ra

ting:

hem

p se

sban

ia u

neq

ual

ly d

istr

ibute

d ov

er tes

t; thic

kst

and in

mid

dle

of t

est, b

ut not

on e

dge

s. I

n thic

k a

reas

, trt

s. 2

4, 2

5, 2

9, a

nd 3

0 a

ppea

red to

contr

ol h

emp s

esban

ia b

ut re

sults

are

inco

ncl

usi

ve d

ue

to p

oor

pop

ula

tion

dis

trib

ution

. PPI =

pre

pla

nt in

corp

orat

ed; P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; PR

EFL

= pre

flood

;an

d P

OFL

= pos

tflo

od.

App

licat

ion typ

ePPI

PR

ED

PR

EE

PO

ST

PR

EFL

PO

FL

Dat

e ap

plie

dM

ay 8

, 199

7M

ay 8

, 199

7M

ay 1

2, 1

997

June

2, 1

997

June

18, 1

997

June

27, 1

997

Tim

e10

:30

am4:

50 p

m5:

45 p

m12

:30

pm11

:00

am10

:25

amIn

corp

orat

ion e

quip

men

tS-T

ine

N/A

N/A

N/A

N/A

N/A

Air/S

oil t

empe

ratu

re (F

)77

/ 6

889

/ 8

060

/ 6

267

/ 6

286

/ 7

487

/ 8

0R

elat

ive

hum

idity

(%)

5832

5470

4565

Win

d (m

ph, d

irec

tion)

51

45

00

Wea

ther

mos

tly c

loudy

part

ly c

loudy

clou

dycl

oudy

clea

rcl

ear

Soi

l moi

sture

moi

stm

oist

moi

stda

mp

sogg

yw

etC

rop

stag

e/H

eigh

tN/

AN/

AN/

A2-

3 lf

/ 3"

4-5

tille

r /

7.5"

tille

red

/ 9"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

1100

1511

0015

1100

1511

0015

1100

1511

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

18 /

6 /

20

18 /

6 /

20

18 /

6 /

20

22 /

6 /

20

20 /

6 /

20

Gpa

/ P

si10

/ 2

210

/ 2

210

/ 2

410

/ 2

410

/ 2

210

/ 2

2W

eed s

pec

ies

(pop

ula

tion

):(h

eigh

t /

# le

aves

)B

RAPP

(10

to 1

2/ft2

)N/

AN/

AN/

A2

lf /

0.5-

3"1

lf /

0.5-

2"3

lf /

7"E

CLA

L (6

to

12/f

t2)

N/A

N/A

N/A

2 lf

/ 0.

5-2"

2-4

lf /

3"6

lf /

4"SE

BE

X (<

1/ft2

)N/

AN/

AN/

A2

lf /

3"12

lf /

20"

Con

clusi

ons:

Litt

le in

jury

occ

urr

ed w

ith a

ny

trea

tmen

t at

this

loca

tion.

Mos

t tr

eatm

ents

faile

d to

con

trol

hem

p se

sban

ia a

nd

the

test

was

not

har

vest

ed.

Imaz

ethap

yr p

rovi

ded

exce

llent co

ntr

ol o

f bro

adle

af s

ignal

gras

s at

all

rate

s an

d tim

ings

. Im

azaq

uin

als

o pr

ovid

ed e

xcel

lent gr

ass

con

trol

and

bett

er c

ontr

ol o

fbr

oadl

eaf a

nd

aquat

ic w

eeds

. Th

e ri

ce w

as a

shor

t-se

ason

var

iety

with v

ery

poor

yie

ld p

oten

tial

.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

109

Tab

le 3

3.

Wee

d co

ntr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Ecl

ipta

(EC

LAL)

Her

bici

deR

ate

timin

g6/

26/

96/

187/

37/

238/

208/

256/

96/

18(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

0Im

azet

hap

yr0.

063

PPI

9599

9810

010

099

950

0Im

azet

hap

yr0.

094

PPI

9899

100

100

100

100

100

3315

Imaz

ethap

yr0.

125

PPI

100

9910

010

010

010

010

088

70Im

azet

hap

yr0.

063

PR

E10

096

9910

010

010

010

046

24Im

azet

hap

yr0.

094

PR

E10

099

100

100

100

100

100

8653

Imaz

ethap

yr0.

125

PR

E10

010

010

010

010

010

010

098

94Im

azet

hap

yr0.

063

DPR

E98

9910

010

010

010

010

044

0Im

azet

hap

yr0.

094

DPR

E99

9696

100

100

100

100

2013

Imaz

ethap

yr0.

125

DPR

E99

100

100

100

100

100

100

7861

Imaz

ethap

yr +

0.06

3pe

ndi

met

hal

in1.

0D

PR

E10

010

010

010

010

010

010

066

31Im

azet

hap

yr +

0.09

4pe

ndi

met

hal

in1.

0D

PR

E99

100

100

100

100

100

100

4864

Imaz

ethap

yr +

0.12

5pe

ndi

met

hal

in1.

0D

PR

E10

010

099

100

100

100

100

9673

Imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

066

100

100

100

100

100

4370

Imaz

ethap

yr +

0.09

4Act

ivat

or 9

0 (0

.25%

)E

PO

ST

073

100

100

100

100

100

5348

Imaz

ethap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)E

PO

ST

089

100

100

100

100

100

7964

Imaz

ethap

yr fb

0.06

3PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9199

100

100

100

100

100

9864

conti

nued

AAES RESEARCH SERIES 462

110

Tab

le 3

3. C

onti

nued

.W

eed

contr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Ecl

ipta

(EC

LAL)

Her

bici

deR

ate

timin

g6/

26/

96/

187/

37/

238/

208/

256/

96/

18(lb

/A)

(%)

Imaz

ethap

yr fb

0.06

3PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9610

010

010

010

010

010

098

91Im

azet

hap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9610

010

010

010

010

010

091

74Pe

ndi

met

hal

in +

1.0

imaz

ethap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9399

100

100

100

100

100

9383

Imaz

aquin

0.12

5PPI

9998

9610

010

010

098

9695

Imaz

aquin

+0.

063

imaz

ethap

yr0.

063

PPI

9910

010

010

010

010

010

099

93Im

azaq

uin

fb0.

125

PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9810

010

010

010

010

010

099

98Im

azet

hap

yr fb

0.06

3PPI

imaz

aquin

+0.

125

Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9810

010

010

010

010

010

010

010

0Pr

opan

il (S

upe

r W

ham

) +3.

0im

azet

hap

yr +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

EPO

ST

010

010

010

010

010

010

010

010

0Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PR

EFL

073

9910

010

010

010

069

85Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PO

FL

061

9610

010

010

010

00

0

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

111

Tab

le 3

3. C

onti

nued

.W

eed

contr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Ecl

ipta

(EC

LAL)

Her

bici

deR

ate

timin

g6/

26/

96/

187/

37/

238/

208/

256/

96/

18(lb

/A)

(%)

Imaz

ethap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)PO

FL

00

1541

100

100

950

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9910

010

010

010

010

010

010

010

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il (S

upe

r W

ham

)3.

0+

tric

lopy

r +

0.25

Penet

rato

r Pl

us

(1 p

t/A)

PR

EFL

9910

098

100

100

100

100

100

99

LSD

(0.0

5)

67

42

11

422

19co

nti

nued

Tab

le 3

3.

Con

tinued

.H

emp

sesb

ania

App

licat

ion

(SE

BE

X) c

ontr

olR

ice

inju

ryH

erbi

cide

Rat

etim

ing

7/23

8/25

6/2

6/9

6/18

7/3

7/23

8/20

8/25

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

0Im

azet

hap

yr0.

063

PPI

00

00

00

00

0Im

azet

hap

yr0.

094

PPI

00

00

00

00

0Im

azet

hap

yr0.

125

PPI

00

00

00

00

0Im

azet

hap

yr0.

063

PR

E0

00

00

00

00

Imaz

ethap

yr0.

094

PR

E0

00

00

00

00

Imaz

ethap

yr0.

125

PR

E0

00

00

00

00

Imaz

ethap

yr0.

063

DPR

E0

00

00

00

00 co

nti

nued

AAES RESEARCH SERIES 462

112

Tab

le 3

3.

Con

tinued

.H

emp

sesb

ania

App

licat

ion

(SE

BE

X) c

ontr

olR

ice

inju

ryH

erbi

cide

Rat

etim

ing

7/23

8/25

6/2

6/9

6/18

7/3

7/23

8/20

8/25

(lb/A

)(%

)

Imaz

ethap

yr0.

094

DPR

E0

00

00

00

00

Imaz

ethap

yr0.

125

DPR

E0

00

00

00

00

Imaz

ethap

yr +

0.06

3pe

ndi

met

hal

in1.

0D

PR

E0

00

00

00

00

Imaz

ethap

yr +

0.09

4pe

ndi

met

hal

in1.

0D

PR

E0

00

00

00

00

Imaz

ethap

yr +

0.12

5pe

ndi

met

hal

in1.

0D

PR

E0

00

00

00

00

Imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

00

00

0Im

azet

hap

yr +

0.09

4Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

00

00

0Im

azet

hap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

03

50

30

0Im

azet

hap

yr fb

0.06

3PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

00

00

0Im

azet

hap

yr fb

0.06

3PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

00

00

0Im

azet

hap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

00

40

0Pe

ndi

met

hal

in +

1.0

imaz

ethap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

00

00

0Im

azaq

uin

0.12

5PPI

00

00

00

00

0Im

azaq

uin

+0.

063

imaz

ethap

yr0.

063

PPI

00

00

00

00

0 conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

113

Tab

le 3

3.

Con

tinued

.H

emp

sesb

ania

App

licat

ion

(SE

BE

X) c

ontr

olR

ice

inju

ryH

erbi

cide

Rat

etim

ing

7/23

8/25

6/2

6/9

6/18

7/3

7/23

8/20

8/25

(lb/A

)(%

)

Imaz

aquin

fb0.

125

PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

00

00

30

30

0Im

azet

hap

yr fb

0.06

3PPI

imaz

aquin

+0.

125

Act

ivat

or 9

0 (0

.25%

)E

PO

ST

100

980

00

03

00

Prop

anil

(Supe

r W

ham

) +3.

0im

azet

hap

yr +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

EPO

ST

100

990

243

05

00

Imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PR

EFL

00

00

00

00

0Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PO

FL

00

00

00

00

0Im

azet

hap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)PO

FL

00

00

00

330

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

100

980

03

00

00

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il (S

upe

r W

ham

)3.

0+

tric

lopy

r +

0.25

Penet

rato

r Pl

us

(1 p

t/A)

PR

EFL

100

100

00

10

100

0

LSD

(0.0

5)

12

NS

2N

SN

S6

NS

NS

AAES RESEARCH SERIES 462

114

Tab

le 3

4. IM

I-to

lera

nt ri

ce, S

tutt

gar

t.Tab

le 3

4. IM

I-to

lera

nt ri

ce, S

tutt

gar

t.Tab

le 3

4. IM

I-to

lera

nt ri

ce, S

tutt

gar

t.Tab

le 3

4. IM

I-to

lera

nt ri

ce, S

tutt

gar

t.Tab

le 3

4. IM

I-to

lera

nt ri

ce, S

tutt

gar

t.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.....................................................................................S

tutt

gart

Plan

ting

dat

e..............................................................

May

13, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.............................................................................

N/A

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

..........................................................

Rice

/ 9

3A

S3510

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................................................

Soil t

ype

...........................C

row

ley

silt lo

am (8%

san

d, 7

5%

silt

, 16%

cla

y)%

OM

/ p

H..........................................................................

1.6

/ 4

.5

Com

men

ts: I

MI-

tole

rant ri

ce is

gen

etic

ally

tra

nsf

orm

ed to

tole

rate

imid

azol

inon

e her

bici

des.

PPI

= p

repl

ant in

corp

orat

ed; P

RE

= p

reem

erge

nce

; DPR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; PR

EFL

= pre

flood

; and P

OFL

= pos

tflo

od.

App

licat

ion typ

ePPI

PR

ED

PR

EE

PO

ST

PR

EFL

PO

FL

Dat

e ap

plie

dM

ay 1

3, 1

997

May

13,

199

7M

ay 2

3, 1

997

June

5, 1

997

June

19, 1

997

June

25, 1

997

Tim

e12

:15

am5:

00 p

m11

:50

am12

:05

pm11

:00

am10

:50

amIn

corp

orat

ion e

quip

men

tS-T

ine

N/A

N/A

N/A

N/A

N/A

Air/S

oil t

empe

ratu

re (F

)75

/ 7

880

/ 7

773

/ 7

376

/ 6

592

/ 8

182

/ 7

8R

elat

ive

hum

idity

(%)

3029

5336

4160

Win

d (m

ph, d

irec

tion)

34

2.5

23.

54

Wea

ther

clea

rcl

ear

clou

dypa

rtly

clo

udy

clea

rcl

oudy

Soi

l moi

sture

dry

dry

sogg

ydr

yda

mp

wet

Cro

p st

age/

Hei

ght

N/A

N/A

N/A

tille

ring

/ 5"

tille

ring

/ 7"

/ 30

"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

1100

1511

0015

1100

1511

0015

1100

1511

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

18 /

6 /

20

18 /

6 /

20

20 /

6 /

20

22 /

6 /

20

28 /

6 /

20

Gpa

/ P

si10

/ 2

210

/ 2

210

/ 2

210

/ 2

610

/ 2

410

/ 1

9W

eed s

pec

ies:

(hei

ght /

# le

aves

)O

RYS

AN/

AN/

AN/

A2

lf /

5"4

tille

rs /

6"

30"

Con

clusi

ons:

Sev

ere

inju

ry r

esu

lted

from

the

DPR

E tre

atm

ents

at th

is lo

cation

. A

ll tr

eatm

ents

exc

ept th

ose

applie

d P

OFL

pro

vided

exc

elle

nt r

ed r

ice

contr

ol.

Bei

ng

a sh

ort se

ason

var

iety

, the

crop

was

des

troy

ed to

prev

ent an

y po

ssib

le o

utc

ross

ing;

thus

yiel

ds w

ere

not

tak

en.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

115

Tab

le 3

4.

Wee

d co

ntr

olE

ntir

elea

f mor

nin

gglo

ryApp

licat

ion

Red

ric

e (O

RYS

A)

(IPO

HG

)H

erbi

cide

Rat

etim

ing

6/5

6/16

6/25

7/2

7/16

7/23

6/5

6/16

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

Imaz

ethap

yr0.

063

PPI

9185

9010

010

010

089

73Im

azet

hap

yr0.

094

PPI

9493

9510

010

010

093

84Im

azet

hap

yr0.

125

PPI

9595

9410

010

010

090

80Im

azet

hap

yr0.

063

PR

E75

7379

9510

010

078

60Im

azet

hap

yr0.

094

PR

E86

8889

100

100

100

8364

Imaz

ethap

yr0.

125

PR

E86

8993

100

100

100

8480

Imaz

ethap

yr0.

063

DPR

E81

8695

100

100

100

8683

Imaz

ethap

yr0.

094

DPR

E76

8895

100

100

100

8178

Imaz

ethap

yr0.

125

DPR

E83

9095

100

100

9988

78Im

azet

hap

yr +

0.06

3pe

ndi

met

hal

in1.

0D

PR

E84

8995

100

100

100

9180

Imaz

ethap

yr +

0.09

4pe

ndi

met

hal

in1.

0D

PR

E80

8695

100

100

100

8883

Imaz

ethap

yr +

0.12

5pe

ndi

met

hal

in1.

0D

PR

E83

9095

100

100

100

8385

Imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

050

9010

010

010

00

58Im

azet

hap

yr +

0.09

4Act

ivat

or 9

0 (0

.25%

)E

PO

ST

053

9110

010

010

00

58Im

azet

hap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)E

PO

ST

050

9110

010

010

00

65Im

azet

hap

yr fb

0.06

3PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9494

9510

010

010

090

83Im

azet

hap

yr fb

0.06

3PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

7689

9510

010

010

085

79

conti

nued

AAES RESEARCH SERIES 462

116

Tab

le 3

4. C

onti

nued

.W

eed

contr

olE

ntir

elea

f mor

nin

gglo

ryApp

licat

ion

Red

ric

e (O

RYS

A)

(IPO

HG

)H

erbi

cide

Rat

etim

ing

6/5

6/16

6/25

7/2

7/16

7/23

6/5

6/16

(lb/A

)(%

)

Imaz

ethap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

7985

9510

010

010

091

71Pe

ndi

met

hal

in +

1.0

imaz

ethap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

8189

9510

010

010

081

80Im

azaq

uin

0.12

5PPI

9178

8010

010

010

090

79Im

azaq

uin

+0.

063

imaz

ethap

yr0.

063

PPI

9591

9410

010

010

084

80Im

azaq

uin

fb0.

125

PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9491

9510

010

010

089

84Im

azet

hap

yr fb

0.06

3PPI

imaz

aquin

+0.

125

Act

ivat

or 9

0 (0

.25%

)E

PO

ST

9494

9510

010

010

083

74Pr

opan

il (S

upe

r W

ham

) +3.

0im

azet

hap

yr +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

EPO

ST

058

9110

010

010

00

53Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PR

EFL

055

9110

010

010

00

53Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PO

FL

045

7910

096

100

040

Imaz

ethap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)PO

FL

00

035

6428

00

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

117

Tab

le 3

4. C

onti

nued

.W

eed

contr

olE

ntir

elea

f mor

nin

gglo

ryApp

licat

ion

Red

ric

e (O

RYS

A)

(IPO

HG

)H

erbi

cide

Rat

etim

ing

6/5

6/16

6/25

7/2

7/16

7/23

6/5

6/16

(lb/A

)(%

)

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

048

9110

010

010

00

85Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il (S

upe

r W

ham

)3.

0+

tric

lopy

r +

0.25

Penet

rato

r Pl

us

(1 p

t/A)

PR

EFL

00

00

00

088

LSD

(0.0

5)

57

35

211

913

conti

nued

Tab

le 3

4.

Con

tinued

.R

ice

hea

ds

App

licat

ion

Ric

e in

jury

form

edH

erbi

cide

Rat

etim

ing

6/5

6/16

6/25

7/2

7/16

7/23

7/23

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

40Im

azet

hap

yr0.

063

PPI

30

00

00

98Im

azet

hap

yr0.

094

PPI

115

00

00

93Im

azet

hap

yr0.

125

PPI

2813

235

50

75Im

azet

hap

yr0.

063

PR

E0

50

00

010

0Im

azet

hap

yr0.

094

PR

E9

38

00

010

0Im

azet

hap

yr0.

125

PR

E15

613

00

095

Imaz

ethap

yr0.

063

DPR

E41

1820

44

063

Imaz

ethap

yr0.

094

DPR

E55

2628

1815

621

conti

nued

AAES RESEARCH SERIES 462

118

Tab

le 3

4.

Con

tinued

.R

ice

hea

ds

App

licat

ion

Ric

e in

jury

form

edH

erbi

cide

Rat

etim

ing

6/5

6/16

6/25

7/2

7/16

7/23

7/23

(lb/A

)(%

)

Imaz

ethap

yr0.

125

DPR

E63

4538

2419

110

Imaz

ethap

yr +

0.06

3pe

ndi

met

hal

in1.

0D

PR

E61

2531

2120

1026

Imaz

ethap

yr +

0.09

4pe

ndi

met

hal

in1.

0D

PR

E33

1621

513

375

Imaz

ethap

yr +

0.12

5pe

ndi

met

hal

in1.

0D

PR

E64

3431

2319

616

Imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

08

00

00

96Im

azet

hap

yr +

0.09

4Act

ivat

or 9

0 (0

.25%

)E

PO

ST

026

145

31

68Im

azet

hap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)E

PO

ST

025

154

00

98Im

azet

hap

yr fb

0.06

3PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

318

111

01

94Im

azet

hap

yr fb

0.06

3PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

08

00

00

99Im

azet

hap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

1823

148

31

81Pe

ndi

met

hal

in +

1.0

imaz

ethap

yr fb

0.06

3D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

5134

2623

206

64Im

azaq

uin

0.12

5PPI

53

00

00

95Im

azaq

uin

+0.

063

imaz

ethap

yr0.

063

PPI

110

00

00

89

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

119

Tab

le 3

4.

Con

tinued

.R

ice

hea

ds

App

licat

ion

Ric

e in

jury

form

edH

erbi

cide

Rat

etim

ing

6/5

6/16

6/25

7/2

7/16

7/23

7/23

(lb/A

)(%

)

Imaz

aquin

fb0.

125

PPI

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

011

100

00

99Im

azet

hap

yr fb

0.06

3PPI

imaz

aquin

+0.

125

Act

ivat

or 9

0 (0

.25%

)E

PO

ST

310

158

00

95Pr

opan

il (S

upe

r W

ham

) +3.

0im

azet

hap

yr +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

EPO

ST

033

113

51

84Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PR

EFL

013

2320

201

73Im

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

) fb

EPO

ST

imaz

ethap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)PO

FL

00

38

201

46Im

azet

hap

yr +

0.12

5Act

ivat

or 9

0 (0

.25%

)PO

FL

00

00

3625

5Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Eim

azet

hap

yr +

0.06

3Act

ivat

or 9

0 (0

.25%

)E

PO

ST

05

83

50

88Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il (S

upe

r W

ham

)3.

0+

tric

lopy

r +

0.25

Penet

rato

r Pl

us

(1 p

t/A)

PR

EFL

00

00

00

14

LSD

(0.0

5)

119

68

66

26

AAES RESEARCH SERIES 462

120

Tab

le 3

5. F

enoxa

pro

p s

afener,

Lonoke

.Tab

le 3

5. F

enoxa

pro

p s

afener,

Lonoke

.Tab

le 3

5. F

enoxa

pro

p s

afener,

Lonoke

.Tab

le 3

5. F

enoxa

pro

p s

afener,

Lonoke

.Tab

le 3

5. F

enoxa

pro

p s

afener,

Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.....................................................

Sept

embe

r 18, 1

997

Plot si

ze.......................................................................

10 ft

by 20 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H...........................................................................1

.9 / 4

.6

Com

men

ts: H

OE

-122

006

is the

fenox

apro

p sa

fener

. 2-L

F =

2-lea

f ric

e; P

RE

FL

= pr

eflo

od.

App

licat

ion typ

e2-

LFPR

EFL

Dat

e ap

plie

dM

ay 3

0, 1

997

June

17, 1

997

Tim

e11

:36

am4:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)68

/ 7

289

/ 8

2R

elat

ive

hum

idity

(%)

7556

Win

d (m

ph, d

irec

tion)

33

Wea

ther

clou

dypa

rtly

clo

udy

Soi

l moi

sture

dam

pda

mp

Cro

p st

age/

Hei

ght

2-lf

/ 3"

4 til

ler /

12"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 /

3N

ozzl

e ty

pe/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

22 /

6 /

20

24 /

6 /

20

Gpa

/ P

si10

/ 2

810

/ 2

2 &

26

Wee

d s

pec

ies

(hei

ght /

# le

aves

)B

RAPP

(10

to 4

7/ft2

)2-

lf /

1"4-

lf /

4"C

oncl

usi

ons:

This

stu

dy w

as o

vers

pray

ed w

ith 1

gal

lon/A

of H

i-D

ep in

stea

d of

1 q

uar

t/A o

n J

uly

7, s

o ra

tings

after

that

and

rice

yie

lds

may

not

acc

ura

tely

ref

lect

resu

lts o

f fen

oxap

rop

trea

tmen

ts.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

121

Tab

le 3

5.

Bro

adle

af s

ignal

gras

sApp

licat

ion

(BR

APP) c

ontr

olR

ice

inju

ryH

erbi

cide

Rat

etim

ing

6/9

6/18

7/23

8/20

6/9

6/18

7/3

7/10

7/23

8/20

8/27

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

00

00

026

55Fen

oxap

rop (B

ugl

e)0.

057

2-LF

8365

100

100

00

89

243

556

70Fen

oxap

rop (B

ugl

e)0.

114

2-LF

8670

100

100

00

1616

3519

2542

30Fen

oxap

rop (B

ugl

e) +

0.05

7H

OE

-112

2006

0.05

72-

LF81

6610

010

00

03

628

814

5535

Fen

oxap

rop (B

ugl

e) +

0.11

4H

OE

-122

006

0.11

42-

LF84

6810

010

00

03

421

610

5490

Fen

oxap

rop

(Whip

360

)0.

057

2-LF

8670

100

100

03

449

4123

3827

45Fen

oxap

rop

(Whip

360

)0.

114

2-LF

8370

100

100

018

3333

4025

4339

15Fen

oxap

rop

(Whip

360

) +0.

057

HO

E-1

2200

60.

057

2-LF

8070

100

100

00

35

214

1458

95Fen

oxap

rop

(Whip

360

) +0.

114

HO

E-1

2200

60.

114

2-LF

8966

100

100

00

35

194

1058

95Fen

oxap

rop (B

ugl

e) +

0.04

HO

E-1

2200

6 fb

0.04

2-LF

benta

zon +

0.75

fenox

apro

p (B

ugl

e) +

0.05

7H

OE

-122

006

0.05

7PR

EFL

8666

100

100

00

106

154

861

65Pr

opan

il (S

upe

r W

ham

) +3.

0Pe

net

rato

r Pl

us

(1 p

t/A)

2-LF

fbpr

opan

il (S

upe

rW

ham

) +3.

0Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

100

9510

010

00

08

621

910

3780

Prop

anil

(Supe

r W

ham

) +3.

0qu

incl

orac

+0.

25Pe

net

rato

r Pl

us

(1 p

t/A)

2-LF

100

100

100

100

00

149

166

862

55Fen

oxap

rop (B

ugl

e) fb

0.04

2-LF

fenox

apro

p (B

ugl

e)0.

057

PR

EFL

8068

100

100

00

1818

3320

3337

80 conti

nued

AAES RESEARCH SERIES 462

122

Tab

le 3

5. C

onti

nued

.B

road

leaf

sig

nal

gras

sApp

licat

ion

(BR

APP) c

ontr

olR

ice

inju

ryH

erbi

cide

Rat

etim

ing

6/9

6/18

7/23

8/20

6/9

6/18

7/3

7/10

7/23

8/20

8/27

yiel

d(lb

/A)

(%)

(lb/A

)

Fen

oxap

rop (B

ugl

e) +

0.04

HO

E-1

2200

6 fb

0.04

2-LF

fenox

apro

p (B

ugl

e) +

0.05

7H

OE

-122

006

0.05

7PR

EFL

7868

100

100

00

1111

245

1159

40

LSD

(0.0

5)

98

11

NS

512

1117

1318

1440

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

123

Tab

le 3

6. Q

uin

clor

ac (F

acet

) gra

nule

s, L

onok

e.

TEST INFO

RM

ATIO

N

Loca

tion

..................................................................................

Lonok

ePl

anting

dat

e.................................................................

May

7, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

..............................................

RC

B /

4Har

vest

dat

e.....................................................

Sept

embe

r 19, 1

997

Plo

t si

ze......................................................................

10 ft

by

20 ft

Crop

/Var

iety

...............................................................R

ice

/ Cyp

ress

Row

wid

th /

Num

ber of

row

s pe

r pl

ot.................................7

.5 in

/ 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soi

l typ

e......................................

Silt

loam

(2%

san

d, 8

6% s

ilt, 1

2% c

lay)

% O

M /

pH

..............

..................................................

........

1.0

/ 4.

9

Com

men

ts: Q

uin

clor

ac (F

acet

) gra

nule

s (G

) wer

e m

ixed

with 3

lb o

f san

d an

d han

d-sp

read

in p

lots

. PR

E =

pre

emer

gence

; DPR

E =

del

ayed

pre

emer

gence

;E

PO

ST =

ear

ly p

oste

mer

gence

; PO

FL

= pos

tflo

od; D

F =

dry

flow

able

form

ula

tion

.App

licat

ion typ

ePR

ED

PR

EE

PO

ST

PO

FL

Dat

e ap

plie

dM

ay 7

, 199

7M

ay 1

2, 1

997

May

30,

199

7Ju

ne

27, 1

997

Tim

e3:

15 p

m3:

30 p

m6:

15 p

m10

:00

amIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)78

/ 7

060

/ 6

280

/ 8

086

/ 8

0R

elat

ive

hum

idity

(%)

4466

3863

Win

d (m

ph, d

irec

tion)

34

50

Wea

ther

mos

tly c

loudy

clou

dycl

ear

clea

rSoi

l moi

sture

moi

stm

oist

dam

pw

etC

rop

stag

e/H

eigh

tN/

AN/

A2-

lf /

3"4-

5 til

ler /

8"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

18 /

6 /

20

24 /

6 /

20

20 /

6 /

20

Gpa

/ P

si10

/ 2

310

/ 2

410

/ 2

610

/ 2

2W

eed s

pec

ies

(pop

ula

tion

): (h

eigh

t /

# le

aves

)B

RAPP

(20

to 3

8/ft2

)N/

AN/

A2-

lf /

1-2"

17"

Con

clusi

ons:

This

stu

dy w

as a

con

tinuat

ion o

f res

earc

h to

com

pare

Fac

et D

F w

ith the

Fac

et 1

.5%

gra

nula

r fo

rmula

tion. I

n a

ll so

il-ap

plie

d tr

eatm

ents

, per

for-

man

ce o

f the

two

form

ula

tion

s w

as c

ompa

rabl

e. T

he

gran

ula

r fo

rmula

tion

was

less

effe

ctiv

e ea

rly

post

emer

gence

, whic

h is

con

sist

ent w

ith p

revi

ous

resu

lts.

Bot

hfo

rmula

tions

prov

ided

poo

r co

ntr

ol a

pplie

d po

stflo

od.

AAES RESEARCH SERIES 462

124

Tab

le 3

6.

Wee

d co

ntr

olPe

nnsy

lvan

ia s

mar

twee

dApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

(PO

LPY

)H

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

6/27

7/22

8/21

8/27

8/21

8/27

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

00

Quin

clor

ac (D

F)

0.25

PR

E10

090

9899

9810

010

098

00

Quin

clor

ac (1

.5G

)0.

25PR

E90

8486

9610

010

010

099

00

Quin

clor

ac (D

F)

0.37

5PR

E10

090

9410

010

010

010

010

014

18Q

uin

clor

ac (1

.5G

)0.

375

PR

E93

8594

9893

100

100

100

2020

Quin

clor

ac (D

F)

0.5

PR

E98

9099

100

9910

010

010

069

71Q

uin

clor

ac (1

.5G

)0.

5PR

E98

8998

100

9810

010

010

080

75Q

uin

clor

ac (D

F)

0.25

DPR

E95

9098

9810

010

010

010

074

76Q

uin

clor

ac (1

.5G

)0.

25D

PR

E86

8494

100

9810

010

010

068

55Q

uin

clor

ac (D

F)

0.37

5D

PR

E95

9098

100

100

100

100

100

8083

Quin

clor

ac (1

.5G

)0.

375

DPR

E91

8994

100

9810

010

010

078

73Q

uin

clor

ac (D

F)

0.5

DPR

E93

9099

100

100

100

100

100

7979

Quin

clor

ac (1

.5G

)0.

5D

PR

E78

8895

100

100

100

100

9871

73Q

uin

clor

ac (D

F) +

0.25

Agr

i-D

ex (1

pt/

A)

EPO

ST

00

9199

100

100

100

100

4033

Quin

clor

ac (1

.5G

)0.

25E

PO

ST

00

6588

9087

9050

220

Quin

clor

ac (D

F) +

0.37

5Agr

i-D

ex (1

pt/

A)

EPO

ST

00

8610

010

010

010

010

063

45Q

uin

clor

ac (1

.5G

)0.

375

EPO

ST

00

4777

7090

9080

00

Quin

clor

ac (D

F) +

0.5

Agr

i-D

ex (1

pt/

A)

EPO

ST

00

9598

9810

010

010

083

79Q

uin

clor

ac (1

.5G

)0.

5E

PO

ST

00

5486

100

9598

9065

58Q

uin

clor

ac (D

F) +

0.37

5Agr

i-D

ex (1

pt/

A)

PO

FL

00

00

068

8475

6553

Quin

clor

ac (1

.5G

)0.

375

PO

FL

00

00

00

4535

00

Quin

clor

ac (D

F) +

0.5

Agr

i-D

ex (1

pt/

A)

PO

FL

00

00

4895

9363

00

Quin

clor

ac (1

.5G

)0.

5PO

FL

00

00

6085

8777

5043

Quin

clor

ac (D

F) +

0.25

thio

benca

rb2.

0D

PR

E99

9099

100

100

100

100

950

0co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

125

Tab

le 3

6. C

onti

nued

.W

eed

contr

olPe

nnsy

lvan

ia s

mar

twee

dApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

(PO

LPY

)H

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

6/27

7/22

8/21

8/27

8/21

8/27

(lb/A

)(%

)

Quin

clor

ac (D

F) +

0.18

8th

iobe

nca

rb2.

0D

PR

E98

8696

100

9810

010

010

070

68Q

uin

clor

ac (D

F) +

0.25

pendi

met

hal

in1.

0D

PR

E10

090

9910

098

100

100

100

9385

Quin

clor

ac (D

F) +

0.18

8pe

ndi

met

hal

in1.

0D

PR

E98

9010

010

010

010

010

010

070

65Q

uin

clor

ac (D

F) +

0.37

5th

iobe

nca

rb2.

0D

PR

E99

9010

010

010

010

010

010

070

60Q

uin

clor

ac (D

F) +

0.37

5th

iobe

nca

rb3.

0D

PR

E98

9010

098

100

100

100

100

6360

Quin

clor

ac (D

F) +

0.37

5pe

ndi

met

hal

in1.

0D

PR

E10

090

100

9910

010

010

010

089

83

LSD

(0.0

5)

83

117

99

1015

2626 co

nti

nued

Tab

le 3

6.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

6/27

7/22

8/21

yiel

d(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

041

85Q

uin

clor

ac (D

F)

0.25

PR

E3

100

84

00

6615

Quin

clor

ac (1

.5G

)0.

25PR

E0

101

40

00

6300

Quin

clor

ac (D

F)

0.37

5PR

E8

100

245

00

6480

Quin

clor

ac (1

.5G

)0.

375

PR

E5

100

155

00

6525

Quin

clor

ac (D

F)

0.5

PR

E15

130

84

03

6435

Quin

clor

ac (1

.5G

)0.

5PR

E15

131

1511

00

6120

conti

nued

AAES RESEARCH SERIES 462

126

Tab

le 3

6.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

6/27

7/22

8/21

yiel

d(lb

/A)

(%)

Quin

clor

ac (D

F)

0.25

DPR

E0

100

10

00

6480

Quin

clor

ac (1

.5G

)0.

25D

PR

E10

100

51

00

6660

Quin

clor

ac (D

F)

0.37

5D

PR

E0

113

43

00

6345

Quin

clor

ac (1

.5G

)0.

375

DPR

E5

111

90

00

6210

Quin

clor

ac (D

F)

0.5

DPR

E8

100

80

00

6795

Quin

clor

ac (1

.5G

)0.

5D

PR

E8

110

155

03

6870

Quin

clor

ac (D

F) +

0.25

Agr

i-D

ex (1

pt/

A)

EPO

ST

00

01

30

064

80Q

uin

clor

ac (1

.5G

)0.

25E

PO

ST

00

00

00

059

40Q

uin

clor

ac (D

F) +

0.37

5Agr

i-D

ex (1

pt/

A)

EPO

ST

00

00

10

060

75Q

uin

clor

ac (1

.5G

)0.

375

EPO

ST

00

00

50

355

35Q

uin

clor

ac (D

F) +

0.5

Agr

i-D

ex (1

pt/

A)

EPO

ST

00

00

30

061

20Q

uin

clor

ac (1

.5G

)0.

5E

PO

ST

00

03

50

356

25Q

uin

clor

ac (D

F) +

0.37

5Agr

i-D

ex (1

pt/

A)

PO

FL

00

00

00

049

05Q

uin

clor

ac (1

.5G

)0.

375

PO

FL

00

00

00

041

40Q

uin

clor

ac (D

F) +

0.5

Agr

i-D

ex (1

pt/

A)

PO

FL

00

00

00

054

45Q

uin

clor

ac (1

.5G

)0.

5PO

FL

00

00

00

057

15Q

uin

clor

ac (D

F) +

0.25

thio

benca

rb2.

0D

PR

E5

100

50

00

6075

Quin

clor

ac (D

F) +

0.18

8th

iobe

nca

rb2.

0D

PR

E3

100

01

00

6390

Quin

clor

ac (D

F) +

0.25

pendi

met

hal

in1.

0D

PR

E10

101

84

00

6210

Quin

clor

ac (D

F) +

0.18

8pe

ndi

met

hal

in1.

0D

PR

E5

110

94

00

5985

Quin

clor

ac (D

F) +

0.37

5th

iobe

nca

rb2.

0D

PR

E0

100

150

00

6615

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

127

Tab

le 3

6.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

6/27

7/22

8/21

yiel

d(lb

/A)

(%)

Quin

clor

ac (D

F) +

0.37

5th

iobe

nca

rb3.

0D

PR

E5

101

10

00

5895

Quin

clor

ac (D

F) +

0.37

5pe

ndi

met

hal

in1.

0D

PR

E13

101

80

00

6480

LSD

(0.0

5)

102

NS

9N

SN

SN

S10

17

AAES RESEARCH SERIES 462

128

Tab

le 3

7. H

alosu

lfuro

n (Perm

it) in

rice

, Lonoke

.Tab

le 3

7. H

alosu

lfuro

n (Perm

it) in

rice

, Lonoke

.Tab

le 3

7. H

alosu

lfuro

n (Perm

it) in

rice

, Lonoke

.Tab

le 3

7. H

alosu

lfuro

n (Perm

it) in

rice

, Lonoke

.Tab

le 3

7. H

alosu

lfuro

n (Perm

it) in

rice

, Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e..................................................... Se

ptem

ber 2

2, 1

997

Plot si

ze.......................................................................

10 ft

by 20 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts: PR

E =

pre

emer

gence

; DPR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; PR

EFL1

= p

reflo

od; P

RE

FL2

= p

reflo

od 2

4 h

rs fo

llow

ing

PR

EFL1

; PO

FL

= pos

tflo

od.

App

licat

ion typ

ePR

ED

PR

EE

PO

ST

PR

EFL1

PR

EFL2

PO

FL

Dat

e ap

plie

dM

ay 7

, 199

7M

ay 1

2, 1

997

May

29,

199

7Ju

ne

17, 1

997

June

18, 1

997

June

27, 1

997

Tim

e3:

40 p

m3:

00 p

m6:

30 p

m1:

30 p

m11

:00

am1:

45 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)78

/ 7

060

/ 6

280

/ 8

081

/ 7

878

/ 7

289

/ 8

0R

elat

ive

hum

idity

(%)

4466

4063

6553

Win

d (m

ph, d

irec

tion)

34

54

00

Wea

ther

mos

tly c

loudy

clou

dycl

ear

part

ly c

loudy

clea

rcl

ear

Soi

l moi

sture

moi

stm

oist

moi

stso

ggy

wet

wet

Cro

p st

age/

Hei

ght

N/A

N/A

2-3

lf /

3"5

lf /

6"4-

5 til

ler /

7.5"

16"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

1100

1511

0015

1100

1511

0015

1100

1511

0015

Boo

m h

t / #

Noz

/ S

pac

ing

(in.)

18 /

6 /

20

18 /

6 /

20

20 /

6 /

20

20 /

6 /

20

22 /

6 /

20

18 /

6 /

20

Gpa

/ Psi

10 /

23

10 /

24

10 /

26

10 /

24

10 /

23

10 /

22

Wee

d s

pec

ies

(popula

tion):

(hei

ght /

# le

aves

)B

RA

PP (1

/ft2

)N/

AN/

AN/

A2-

3 lf

/ <1

"4

lf /

3" 2

lf /

1"

CYPE

S (1

/ft2

)N/

AN/

AN/

A5-

8 lf

/ 5-

12"

N/A

N/A

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

129

Con

clusi

ons:

Hal

osulfu

ron (P

erm

it) c

ontinues

to

show

pro

mis

e fo

r ye

llow

nuts

edge

con

trol

in r

ice.

This

stu

dy w

as d

esig

ned

to

look

at ef

fect

s hal

osulfu

ron h

ad o

nri

ce y

ield

s. T

he

study

was

mai

nta

ined

wee

d-fr

ee a

fter

June

17 s

o cr

op in

jury

and

yiel

d w

ould

be

the

only

var

iabl

es. N

o ad

vers

e ef

fect

s on

yie

ld o

ccurr

ed w

ith a

ny

trea

tmen

t.

Tab

le 3

7.

Wee

d co

ntr

olB

road

leaf

Yel

low

sign

algr

ass

nuts

edge

App

licat

ion

(BR

APP)

(CY

PE

S)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/22

6/17

6/17

5/22

6/17

6/27

7/22

8/21

9/17

yiel

d(lb

/A)

(%)

(lb/A

)

All

trea

tmen

ts in

clude

d qu

incl

orac

, 0.2

5 +

pen

dim

ethal

in, 1

.0, D

PR

E fb

prop

anil,

4.0

, PR

EFL2

:C

hec

k (D

PR

E, PR

FL)

9391

930

33

05

167

95H

alos

ulfu

ron

0.06

2PR

E99

9198

34

33

44

6525

Hal

osulfu

ron

0.12

4PR

E96

9699

010

30

55

6615

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%)

EPO

ST

9194

980

86

05

471

55H

alos

ulfu

ron +

0.12

4In

duce

(0.2

5%)

EPO

ST

9496

100

03

40

34

6660

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%)

PR

EFL1

9094

840

315

14

669

30H

alos

ulfu

ron +

0.12

4In

duce

(0.2

5%)

PR

EFL1

9490

540

05

00

165

25H

alos

ulfu

ron +

0.06

2In

duce

(0.2

5%)

PO

FL

9991

550

55

05

572

00H

alos

ulfu

ron +

0.12

4In

duce

(0.2

5%)

PO

FL

8595

880

05

05

367

95H

alos

ulfu

ron +

0.06

2In

duce

(0.2

5%) f

bE

PO

ST

hal

osulfu

ron +

0.04

7In

duce

(0.2

5%)

PR

EFL1

8999

100

06

114

910

6570

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%) f

bE

PO

ST

hal

osulfu

ron +

0.06

2In

duce

(0.2

5%)

PO

FL

8996

100

06

53

46

6930

conti

nued

AAES RESEARCH SERIES 462

130

Tab

le 3

7. C

onti

nued

.W

eed

contr

olB

road

leaf

Yel

low

sign

algr

ass

nuts

edge

App

licat

ion

(BR

APP)

(CY

PE

S)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/22

6/17

6/17

5/22

6/17

6/27

7/22

8/21

9/17

yiel

d(lb

/A)

(%)

(lb/A

)

Hal

osulfu

ron +

0.06

2In

duce

(0.2

5%) f

bPR

EFL1

hal

osulfu

ron +

0.04

7In

duce

(0.2

5%)

PO

FL

9691

750

16

03

370

20

LSD

(0.0

5)

NS

NS

34N

SN

SN

SN

SN

SN

SN

S

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

131

Tab

le 3

8. A

nnual

gra

ss c

ontr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

8. A

nnual

gra

ss c

ontr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

8. A

nnual

gra

ss c

ontr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

8. A

nnual

gra

ss c

ontr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

8. A

nnual

gra

ss c

ontr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.....................................................

Sept

embe

r 28, 1

997

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H.........................................................................

1.9

/ 4

.6

Com

men

ts: 2-

3 LF

= 2

-3 le

af g

rass

es; 4

-5 L

F =

4-5

leaf

gra

sses

; 2-T

ILL

= 2-

tille

r gr

asse

s; 4

-TIL

L =

4-tille

r gr

asse

s.App

licat

ion typ

e2-

3 LF

4-5

LF2-

TILL

4-TI

LLD

ate

appl

ied

May

29,

199

7Ju

ne

4, 1

997

June

11, 1

997

June

17, 1

997

Tim

e7:

35 p

m10

:15

am1:

55 p

m3:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)74

/ 6

869

/ 6

289

/ 6

285

/ 7

8R

elat

ive

hum

idity

(%)

6073

6342

Win

d (m

ph, d

irec

tion)

23.

53

4W

eath

ercl

ear

clou

dycl

oudy

part

ly c

loudy

Soi

l moi

sture

dam

pda

mp

sogg

yso

ggyC

rop

stag

e/H

eigh

t1-

2 lf

/ 2"

4 lf

/ 5"

4 lf

/ 5"

4-5

lf /

6"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

22 /

6 /

20

22 /

6 /

20

22 /

6 /

20

20 /

6 /

20

Gpa

/ P

si10

/ 2

510

/ 2

610

/ 1

910

/ 2

4W

eed s

pec

ies

(pop

ula

tion

):(h

eigh

t /

# le

aves

)B

RAPP

(10

to 2

0/ft2

)2

lf /

1"3

lf /

3"3

lf /

3"4

lf /

4"PO

LPY (1

0/ft

2 to

<1/f

t2 b

y Ju

ne

4)N/

A4-

8 lf

/ 5"

7 lf

/ 5"

6 lf

/ 5"

SE

BE

X (<

1/ft2

)N/

AN/

A2

lf /

3"3

lf /

4"E

CLA

L (5

/ft2 )

N/A

N/A

2 lf

/ 1"

N/A

Con

clusi

ons:

V-1

0029

pro

vide

d ex

celle

nt co

ntr

ol o

f bar

nya

rdgr

ass

in o

ther

res

earc

h a

t th

e U

niv

ersi

ty o

f Ark

ansa

s. H

owev

er, i

t co

nsi

sten

tly

faile

d to

con

trol

broa

dlea

f sig

nal

gras

s at

this

loca

tion

.

AAES RESEARCH SERIES 462

132

Tab

le 3

8.

Wee

d co

ntr

olB

road

leaf

sig

nal

gras

sH

emp

sesb

ania

Penn. s

mar

twee

dApp

licat

ion

(BR

APP)

(SE

BE

X)

(PO

LPY

)H

erbi

cide

Rat

etim

ing

6/9

6/17

7/3

7/22

8/20

9/8

6/9

7/22

8/20

9/8

7/22

8/20

9/8

(lb/A

)(%

)U

ntr

eate

d ch

eck

00

00

00

00

00

00

0V

-100

29 +

0.02

Kin

etic

(0.2

5%)

2-3

LF0

180

1120

130

7588

7573

100

95V

-100

29 +

0.01

3K

inet

ic (0

.25%

)2-

3 LF

00

05

013

080

9595

3810

098

V-1

0029

+0.

009

Kin

etic

(0.2

5%)

2-3

LF0

50

1014

130

4838

7550

8881

(Pro

panil

+ m

olin

ate)

4.5

2-3

LF96

6310

085

8069

100

9585

9888

100

100

V-1

0029

+0.

02K

inet

ic (0

.25%

)4-

5 LF

030

100

6060

530

100

100

100

100

100

100

V-1

0029

+0.

013

Kin

etic

(0.2

5%)

4-5

LF0

2325

4129

100

010

098

100

8310

010

0V

-100

29 +

0.00

9K

inet

ic (0

.25%

)4-

5 LF

00

2519

235

010

010

010

088

100

100

(Pro

panil

+ m

olin

ate)

6.0

4-5

LF10

095

100

100

100

9910

010

010

010

010

010

010

0V

-100

29 +

0.02

Kin

etic

(0.2

5%)

2-TI

LL0

00

59

100

100

100

100

010

010

0V

-100

29 +

0.01

3K

inet

ic (0

.25%

)2-

TILL

00

1015

1313

010

010

010

00

100

100

V-1

0029

+0.

009

Kin

etic

(0.2

5%)

2-TI

LL0

013

09

50

100

100

100

010

010

0(P

ropa

nil

+ m

olin

ate)

6.0

2-TI

LL0

7310

099

9891

010

010

010

010

010

010

0V

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-TI

LL0

00

010

00

100

100

100

085

95V

-100

29 +

0.01

3K

inet

ic (0

.25%

)4-

TILL

00

139

100

088

7510

00

3059

V-1

0029

+0.

009

Kin

etic

(0.2

5%)

4-TI

LL0

00

00

00

100

100

100

013

0(P

ropa

nil

+ m

olin

ate)

6.0

4-TI

LL0

810

093

8555

010

010

010

00

8568

LSD

(0.0

5)

115

1818

1523

131

2725

2721

24 conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

133

Tab

le 3

8.

Con

tinued

.W

eed

contr

olM

ornin

gglo

rySic

klep

odE

clip

taApp

licat

ion

(IPO

SS

)(S

EN

OB

)(E

CLA

L)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/9

6/9

6/17

6/9

6/17

7/3

7/22

8/20

9/8

yiel

d(lb

/A)

(%)

(lb/A

)U

ntr

eate

d ch

eck

00

00

00

00

022

50V

-100

29 +

0.02

Kin

etic

(0.2

5%)

2-3

LF95

00

00

00

00

2925

V-1

0029

+0.

013

Kin

etic

(0.2

5%)

2-3

LF75

00

00

00

00

2340

V-1

0029

+0.

009

Kin

etic

(0.2

5%)

2-3

LF25

00

00

00

00

3105

(Pro

panil

+ m

olin

ate)

4.5

2-3

LF10

010

010

00

00

00

051

75V

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF10

00

00

10

00

056

70V

-100

29 +

0.01

3K

inet

ic (0

.25%

)4-

5 LF

100

00

00

00

00

4005

V-1

0029

+0.

009

Kin

etic

(0.2

5%)

4-5

LF10

00

00

00

00

030

15(P

ropa

nil

+ m

olin

ate)

6.0

4-5

LF10

010

010

00

10

00

059

40V

-100

29 +

0.02

Kin

etic

(0.2

5%)

2-TI

LL10

00

00

00

00

033

75V

-100

29 +

0.01

3K

inet

ic (0

.25%

)2-

TILL

100

00

00

00

00

2790

V-1

0029

+0.

009

Kin

etic

(0.2

5%)

2-TI

LL10

00

00

00

00

040

50(P

ropa

nil

+ m

olin

ate)

6.0

2-TI

LL10

00

00

60

00

045

00V

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-TI

LL10

00

00

00

05

026

55V

-100

29 +

0.01

3K

inet

ic (0

.25%

)4-

TILL

700

00

00

00

020

25V

-100

29 +

0.00

9K

inet

ic (0

.25%

)4-

TILL

500

00

00

00

030

60(P

ropa

nil

+ m

olin

ate)

6.0

4-TI

LL75

00

00

00

00

5085

LSD

(0.0

5)

400

0N

SN

SN

SN

SN

SN

S13

32

AAES RESEARCH SERIES 462

134

Tab

le 3

9. Bro

adle

af a

nd g

rass

contr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

9. Bro

adle

af a

nd g

rass

contr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

9. Bro

adle

af a

nd g

rass

contr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

9. Bro

adle

af a

nd g

rass

contr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.Tab

le 3

9. Bro

adle

af a

nd g

rass

contr

ol in ri

ce w

ith V

-10

02

9 p

rogra

ms,

Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e.................................................................M

ay 7

, 1997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.............................................................................N/

APl

ot si

ze........................................................................

10 ft

by 20 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

.......................................

Silt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H...........................................................................1

.9 / 4

.6

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; 2-3

LF =

2-3

leaf

gra

sses

; 4-5

LF =

4-5

leaf

gra

sses

; PR

EFL

= 3 d

ays

pre

flood

; PO

FL

= pos

tflo

od; L

PO

FL

= la

tepo

stflo

od.

App

licat

ion typ

eD

PR

E2-

3 LF

4-5

LFPR

EFL

PO

FL

LPO

FL

Dat

e ap

plie

dM

ay 1

2, 1

997

May

29,

199

7Ju

ne

4, 1

997

June

16, 1

997

June

27, 1

997

July

7, 1

997

Tim

e5:

00 p

m7:

35 p

m8:

45 a

m4:

00 p

m1:

00 p

m1:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)60

/ 6

274

/ 6

872

/ 6

280

/ 6

787

/ 8

087

/ 7

8R

elat

ive

hum

idity

(%)

6660

7366

6347

Win

d (m

ph, d

irec

tion)

42

33

33

Wea

ther

clou

dycl

ear

clou

dypa

rtly

clo

udy

clea

rm

ostly

cle

arSoi

l moi

sture

moi

stda

mp

dam

pda

mp

wet

wet

Cro

p st

age/

Hei

ght

N/A

1-2

lf /

2"3-

4 lf

/ 4"

5 lf

/ 6"

4-5

tille

r /

6"5

tille

r /

9"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

Drif

tguar

d /

1100

1511

0015

1100

1511

0015

1100

1511

0015

Boo

m h

t /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

22 /

6 /

20

22 /

6 /

20

26 /

6 /

20

26 /

6 /

20

28 /

6 /

20

Gpa

/ P

si10

/ 2

410

/ 2

610

/ 2

410

/ 2

210

/ 2

210

/ 2

4W

eed s

pec

ies

(pop

ula

tion

s):

(hei

ght /

# le

aves

)B

RAPP

(60/

ft2 m

id-J

une;

30/

ft2 J

uly

)N/

A2

lf /

0.5"

2 lf

/ 2"

4 lf

/ 4"

/ 8

" /

12"

SE

BE

X (1

/ft2)

N/A

2 lf

/ 1"

2 lf

/ 2"

4 lf

/ 4"

/ 8

-10"

/ 2

4"SE

NO

B (1

-2/f

t2 )N/

Aco

ty. /

0.5

"2

lf /

2"4

lf /

3"N/

AN/

AIP

OSS (1

-3/f

t2)

N/A

coty

. / 0

.5"

1 lf

/ 2"

4 lf

/ 3-

4" /

18"

N/A

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

135

Con

clusi

ons:

V-1

0029

pro

vide

d ex

celle

nt co

ntr

ol o

f bar

nya

rdgr

ass

in o

ther

res

earc

h a

t th

e U

niv

ersi

ty o

f Ark

ansa

s. H

owev

er, i

t co

nsi

sten

tly

faile

d to

con

trol

broa

dlea

f sig

nal

gras

s at

this

loca

tion

.

Tab

le 3

9.

App

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olH

erbi

cide

Rat

etim

ing

6/2

6/9

6/17

7/3

7/23

8/20

9/8

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

0V

-100

29 +

0.02

Kin

etic

(0.2

5%)

PR

EFL

00

053

1033

54(P

ropa

nil

+ m

olin

ate)

6.0

PR

EFL

00

093

8983

74V

-100

29 +

0.02

Kin

etic

(0.2

5%) f

b4-

5 LF

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

038

3094

9095

85(P

ropa

nil

+ m

olin

ate)

fb4.

54-

5 LF

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

010

098

100

100

100

100

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF0

9488

9999

9999

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il4.

04-

5 LF

010

010

010

010

010

010

0Th

iobe

nca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF0

4450

9983

9595

Thio

benca

rb fb

3.0

DPR

E(p

ropa

nil

+ m

olin

ate)

4.5

4-5

LF0

9996

100

9999

99Th

iobe

nca

rb +

2.0

prop

anil

fb3.

02-

3 LF

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

4-5

LF91

100

100

100

100

100

100

conti

nued

AAES RESEARCH SERIES 462

136

Tab

le 3

9. C

onti

nued

.App

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olH

erbi

cide

Rat

etim

ing

6/2

6/9

6/17

7/3

7/23

8/20

9/8

(lb/A

)(%

)

Thio

benca

rb +

2.0

prop

anil

fb3.

02-

3 LF

thio

benca

rb +

2.0

prop

anil

3.0

4-5

LF95

100

100

100

100

100

100

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

4-5

LF0

9180

9994

9596

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il +

3.0

bensu

lfuro

n0.

064-

5 LF

099

9910

010

010

010

0Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

PO

FL

058

1518

2510

43Pe

ndi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

PO

FL

060

4446

2613

50Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

PO

FL

056

4150

3321

53Pe

ndi

met

hal

in fb

1.0

mol

inat

e4.

0PO

FL

043

1315

510

25Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

065

3915

58

35Pe

ndi

met

hal

in fb

1.0

mol

inat

e fb

4.0

PO

FL

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

025

515

1410

38

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

137

Tab

le 3

9. C

onti

nued

.App

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olH

erbi

cide

Rat

etim

ing

6/2

6/9

6/17

7/3

7/23

8/20

9/8

(lb/A

)(%

)

V-1

0029

+0.

02F84

26-2

+0.

02K

inet

ic (0

.25%

)4-

5 LF

030

8498

9996

93

LSD

(0.0

5)

313

1415

1113

20

conti

nued

Tab

le 3

9.

Con

tinued

.W

eed

contr

olApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)M

ornin

gglo

ry s

p. (

IPO

SS)

Sic

kle

pod

(SE

NO

B)

Her

bici

deR

ate

timin

g6/

97/

238/

209/

86/

26/

96/

176/

26/

96/

17(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

V-1

0029

+0.

02K

inet

ic (0

.25%

)PR

EFL

010

010

010

00

00

00

0(P

ropa

nil

+ m

olin

ate)

6.0

PR

EFL

010

010

010

00

00

00

0V

-100

29 +

0.02

Kin

etic

(0.2

5%) f

b4-

5 LF

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

010

010

010

00

089

05

55(P

ropa

nil

+ m

olin

ate)

fb4.

54-

5 LF

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

100

100

100

100

010

093

010

010

0Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF0

100

9695

00

900

080

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il4.

04-

5 LF

100

9595

960

100

940

100

100 co

nti

nued

AAES RESEARCH SERIES 462

138

Tab

le 3

9.

Con

tinued

.W

eed

contr

olApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)M

ornin

gglo

ry s

p. (

IPO

SS)

Sic

kle

pod

(SE

NO

B)

Her

bici

deR

ate

timin

g6/

97/

238/

209/

86/

26/

96/

176/

26/

96/

17(lb

/A)

(%)

Thio

benca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF0

9393

950

090

03

88Th

iobe

nca

rb fb

3.0

DPR

E(p

ropa

nil

+ m

olin

ate)

4.5

4-5

LF10

010

010

099

098

700

100

100

Thio

benca

rb +

2.0

prop

anil

fb3.

02-

3 LF

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

4-5

LF10

010

010

010

069

100

100

9910

010

0Th

iobe

nca

rb +

2.0

prop

anil

fb3.

02-

3 LF

thio

benca

rb +

2.0

prop

anil

3.0

4-5

LF10

010

010

010

075

100

100

100

100

100

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

4-5

LF0

100

100

100

00

950

095

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il +

3.0

bensu

lfuro

n0.

064-

5 LF

100

100

100

100

010

095

010

010

0Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

PO

FL

010

010

010

00

00

00

0Pe

ndi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

PO

FL

010

010

010

00

00

00

0Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

PO

FL

010

010

010

00

00

00

0 conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

139

Tab

le 3

9.

Con

tinued

.W

eed

contr

olApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)M

ornin

gglo

ry s

p. (

IPO

SS)

Sic

kle

pod

(SE

NO

B)

Her

bici

deR

ate

timin

g6/

97/

238/

209/

86/

26/

96/

176/

26/

96/

17(lb

/A)

(%)

Pendi

met

hal

in fb

1.0

mol

inat

e4.

0PO

FL

00

00

00

00

00

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

010

010

010

00

00

00

0Pe

ndi

met

hal

in fb

1.0

mol

inat

e fb

4.0

PO

FL

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

010

010

010

00

00

00

0V

-100

29 +

0.02

F84

26-2

+0.

02K

inet

ic (0

.25%

)4-

5 LF

090

9095

00

960

098

LSD

(0.0

5)

16

64

41

161

414

conti

nued

Tab

le 3

9.

Con

tinued

.E

clip

ta (E

CLA

L)App

licat

ion

contr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

176/

26/

96/

177/

37/

238/

209/

8yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

2475

V-1

0029

+0.

02K

inet

ic (0

.25%

)PR

EFL

00

00

50

00

3780

(Pro

panil

+ m

olin

ate)

6.0

PR

EFL

00

00

60

00

4095

conti

nued

AAES RESEARCH SERIES 462

140

Tab

le 3

9.

Con

tinued

.E

clip

ta (E

CLA

L)App

licat

ion

contr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

176/

26/

96/

177/

37/

238/

209/

8yi

eld

(lb/A

)(%

)(lb

/A)

V-1

0029

+0.

02K

inet

ic (0

.25%

) fb

4-5

LFtr

iclo

pyr +

0.28

Kin

etic

(0.2

5%)

LPO

FL

100

00

03

30

049

95(P

ropa

nil

+ m

olin

ate)

fb4.

54-

5 LF

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

100

00

016

80

356

70Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF10

00

00

2914

05

5625

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il4.

04-

5 LF

100

00

020

50

466

60Th

iobe

nca

rb fb

3.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

4-5

LF10

00

00

2110

03

5085

Thio

benca

rb fb

3.0

DPR

E(p

ropa

nil

+ m

olin

ate)

4.5

4-5

LF10

00

00

143

03

4860

Thio

benca

rb +

2.0

prop

anil

fb3.

02-

3 LF

V-1

0029

+0.

02th

iobe

nca

rb +

2.0

Kin

etic

(0.2

5%)

4-5

LF10

06

14

146

03

5580

Thio

benca

rb +

2.0

prop

anil

fb3.

02-

3 LF

thio

benca

rb +

2.0

prop

anil

3.0

4-5

LF10

011

100

245

31

5535

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

4-5

LF95

00

026

154

1054

90

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

141

Tab

le 3

9.

Con

tinued

.E

clip

ta (E

CLA

L)App

licat

ion

contr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

176/

26/

96/

177/

37/

238/

209/

8yi

eld

(lb/A

)(%

)(lb

/A)

Pendi

met

hal

in fb

1.0

DPR

Epr

opan

il +

3.0

bensu

lfuro

n0.

064-

5 LF

100

00

05

10

054

00Pe

ndi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

bensu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

PO

FL

00

00

40

00

4680

Pendi

met

hal

in fb

1.0

DPR

Ebe

nsu

lfuro

n +

0.06

Kin

etic

(0.2

5%)

PO

FL

00

00

100

00

2835

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

Kin

etic

(0.2

5%)

PO

FL

00

00

140

00

4320

Pendi

met

hal

in fb

1.0

mol

inat

e4.

0PO

FL

00

00

80

00

2520

Pendi

met

hal

in fb

1.0

DPR

EV

-100

29 +

0.02

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

00

00

90

00

2835

Pendi

met

hal

in fb

1.0

mol

inat

e fb

4.0

PO

FL

tric

lopy

r +

0.28

Kin

etic

(0.2

5%)

LPO

FL

00

00

90

00

2835

V-1

0029

+0.

02F84

26-2

+0.

02K

inet

ic (0

.25%

)4-

5 LF

100

00

1014

113

1049

05

LSD

(0.0

5)

02

14

149

37

1220

AAES RESEARCH SERIES 462

142

Tab

le 4

0. T

hio

benca

rb (Bole

ro) fo

r aquat

ic w

eed c

ontr

ol o

n fa

llow

gro

und, L

onoke

.Tab

le 4

0. T

hio

benca

rb (Bole

ro) fo

r aquat

ic w

eed c

ontr

ol o

n fa

llow

gro

und, L

onoke

.Tab

le 4

0. T

hio

benca

rb (Bole

ro) fo

r aquat

ic w

eed c

ontr

ol o

n fa

llow

gro

und, L

onoke

.Tab

le 4

0. T

hio

benca

rb (Bole

ro) fo

r aquat

ic w

eed c

ontr

ol o

n fa

llow

gro

und, L

onoke

.Tab

le 4

0. T

hio

benca

rb (Bole

ro) fo

r aquat

ic w

eed c

ontr

ol o

n fa

llow

gro

und, L

onoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e.............................................................................N

/AEx

perim

enta

l Des

ign

/ re

plic

atio

ns................................................

RCB /

4Har

vest

dat

e..............................................................................

N/A

Plot si

ze........................................................................

10 ft

by 20 ft

Crop

/Var

iety

..............................................................................

N/A

Row

wid

th /

Num

ber o

f row

s pe

r plo

t...................................................N

/AD

ate

of F

lood

..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

...........................C

alho

un silt

loam

(2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts: N

orm

al r

ice

cultiv

atio

n p

ract

ices

wer

e fo

llow

ed, b

ut ri

ce w

as n

ot p

lante

d. D

PR

E =

del

ayed

pre

emer

gence

; EPO

ST =

ear

ly p

oste

mer

gence

; PR

EFL

=pr

eflo

od.

App

licat

ion typ

eD

PR

EE

PO

ST

PR

EFL

Dat

e ap

plie

dM

ay 1

2, 1

997

May

29,

199

7Ju

ne

17, 1

997

Tim

e4:

50 p

m6:

40 p

m1:

45 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)60

/ 6

280

/ 8

085

/ 7

8R

elat

ive

hum

idity

(%)

5338

42W

ind

(mph

, direc

tion)

44

4W

eath

ercl

oudy

clea

rpa

rtly

clo

udy

Soi

l moi

sture

moi

stda

mp

sogg

yC

rop

stag

e/H

eigh

tN/

AN/

AN/

ASpr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 /

3N

ozzl

e ty

pe/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

20 /

6 /

20

26 /

6 /

20

Gpa

/ P

si10

/ 2

410

/ 2

510

/ 2

4W

eed s

pec

ies

(hei

ght /

# le

aves

)B

RA

PP

N/A

2-3

lf /

1-2"

N/A

PO

LLA

N/A

N/A

4-5

lf /

4"C

YPE

SN/

A3-

5 lf

/ 4-

6"6

lf /

4"C

oncl

usi

ons:

This

stu

dy

was

con

du

cted

to

eval

uat

e diff

eren

t ra

tes

of B

oler

o fo

llow

ing

vari

ous

pro

gram

s fo

r aq

uat

ic w

eed c

ontr

ol. T

he

stu

dy

was

not

pla

nte

d to

rice

to

atta

in m

axim

um

aqu

atic

sta

nds

. How

ever

, sta

nds

wer

e er

ratic,

and

resu

lts

are

inco

ncl

usi

ve. D

uck

sala

d an

d pu

rple

am

man

ia c

ontr

ol fr

om s

ome

trea

tmen

tsw

as g

ood

earl

y, b

ut al

l tre

atm

ents

had

poo

r w

eed

contr

ol a

t har

vest

tim

e.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

143

Tab

le 4

0.

Wee

d co

ntr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Yel

low

nu

tsed

ge (C

YPE

S)

Her

bici

deR

ate

timin

g5/

306/

166/

277/

238/

276/

277/

238/

27(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

Quin

clor

ac +

0.37

4pe

ndi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb3.

0PR

EFL

9089

048

028

00

Quin

clor

ac +

0.37

4pe

ndi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb4.

0PR

EFL

9078

031

2523

015

Prop

anil

fb3.

0E

PO

ST

thio

benca

rb3.

0PR

EFL

084

3358

4834

043

Prop

anil

fb3.

0E

PO

ST

thio

benca

rb4.

0PR

EFL

086

5848

100

280

35(P

ropa

nil

+ m

olin

ate)

fb4.

5E

PO

ST

thio

benca

rb3.

0PR

EFL

010

010

093

100

540

35(P

ropa

nil

+ m

olin

ate)

fb4.

5E

PO

ST

thio

benca

rb4.

0PR

EFL

510

010

010

010

059

058

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

bensu

lfuro

n +

0.12

5A

G-9

8 (0

.25%

)PR

EFL

810

010

010

010

055

068

LSD

(0.0

5)

915

3350

3726

045

conti

nued

AAES RESEARCH SERIES 462

144

Tab

le 4

0.

Con

tinued

.W

eed

contr

olApp

licat

ion

Purp

le a

mm

ania

(AM

MC

O)

Duck

sala

d (H

ETL

I)H

erbi

cide

Rat

etim

ing

6/16

7/23

8/7

8/20

8/27

7/23

8/4

8/20

8/27

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

0Q

uin

clor

ac +

0.37

4pe

ndi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb3.

0PR

EFL

8810

048

5835

8345

510

Quin

clor

ac +

0.37

4pe

ndi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb4.

0PR

EFL

7510

061

5033

9368

1525

Prop

anil

fb3.

0E

PO

ST

thio

benca

rb3.

0PR

EFL

5395

2959

4365

489

0Pr

opan

il fb

3.0

EPO

ST

thio

benca

rb4.

0PR

EFL

6595

3133

3063

5310

10(P

ropa

nil

+ m

olin

ate)

fb4.

5E

PO

ST

thio

benca

rb3.

0PR

EFL

7310

018

4028

7538

513

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

thio

benca

rb4.

0PR

EFL

8810

049

4828

7858

115

(Pro

panil

+ m

olin

ate)

fb4.

5E

PO

ST

bensu

lfuro

n +

0.12

5A

G-9

8 (0

.25%

)PR

EFL

100

100

7984

7931

00

0

LSD

(0.0

5)

438

4438

4028

2622

26

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

145

Tab

le 4

1. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, L

onoke

.Tab

le 4

1. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, L

onoke

.Tab

le 4

1. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, L

onoke

.Tab

le 4

1. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, L

onoke

.Tab

le 4

1. T

hio

benca

rb (Bole

ro) fo

r weed c

ontr

ol in ri

ce, L

onoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.....................................................

Sept

embe

r 18, 1

997

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

..............................................................

Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

...........................C

alho

un silt

loam

(2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts:

DPR

E =

del

ayed

pre

emer

gence

; E

PO

ST =

ear

ly p

oste

mer

gence

; LP

OST =

late

pos

tem

erge

nce

.App

licat

ion typ

eD

PR

EE

PO

ST

LPO

ST

Dat

e ap

plie

dM

ay 1

2, 1

997

May

30,

199

7Ju

ne

16, 1

997

Tim

e3:

30 p

m6:

15 p

m3:

50 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)60

/ 6

280

/ 8

080

/ 8

0R

elat

ive

hum

idity

(%)

6640

66W

ind

(mph

, direc

tion)

44

3W

eath

ercl

oudy

clea

rpa

rtly

clo

udy

Soi

l moi

sture

moi

stda

mp

dam

pC

rop

stag

e/H

eigh

tN/

A2-

3 lf

/ 4"

5 lf

/ 8"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 /

3N

ozzl

e ty

pe/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

20 /

6 /

20

20 /

6 /

20

Gpa

/ P

si10

/ 2

410

/ 2

610

/ 2

2W

eed s

pec

ies

(pop

ula

tion

): (h

eigh

t /

# le

aves

)B

RAPP

(55/

ft2 E

POST;

8/f

t2 L

POST)

N/A

2 lf

/ 1-

2"6

lf /

6"C

oncl

usi

ons:

Sev

eral

of t

he

prog

ram

s pr

ovid

ed o

uts

tandi

ng

gras

s co

ntr

ol. P

endi

met

hal

in (P

row

l) an

d th

iobe

nca

rb (B

oler

o) a

lone

as w

ell a

s th

e ta

nk

mix

wer

ew

eak

on b

road

leaf

sig

nal

gras

s.

AAES RESEARCH SERIES 462

146

Tab

le 4

1.

App

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP) c

ontr

olH

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

7/22

8/21

8/27

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

0Th

iobe

nca

rb +

3.0

quin

clor

ac0.

5D

PR

E88

9010

098

100

100

100

Thio

benca

rb +

2.0

quin

clor

ac fb

0.5

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

9690

100

9610

010

010

0Th

iobe

nca

rb +

4.0

pendi

met

hal

in1.

0D

PR

E88

8087

7868

7570

Pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

7365

100

9398

100

95Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

2.0

DPR

Eth

iobe

nca

rb +

2.0

prop

anil

3.0

EPO

ST

6564

100

9498

100

96Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

LPO

ST

5859

5048

7688

83Th

iobe

nca

rb +

3.0

prop

anil

3.0

EPO

ST

00

9088

9496

93Th

iobe

nca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

00

9690

9899

94Th

iobe

nca

rb +

2.0

prop

anil

fb3.

0E

PO

ST

thio

benca

rb +

2.0

prop

anil

3.0

LPO

ST

00

8684

9910

010

0

LSD

(0.0

5)

1310

1016

1612

11

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

147

Tab

le 4

1.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/22

5/30

6/9

6/17

7/22

8/21

8/27

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

027

00Th

iobe

nca

rb +

3.0

quin

clor

ac0.

5D

PR

E20

100

00

00

6345

Thio

benca

rb +

2.0

quin

clor

ac fb

0.5

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

1311

10

00

072

45Th

iobe

nca

rb +

4.0

pendi

met

hal

in1.

0D

PR

E10

100

00

00

5895

Pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

510

50

00

067

50Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

2.0

DPR

Eth

iobe

nca

rb +

2.0

prop

anil

3.0

EPO

ST

010

60

00

067

05Th

iobe

nca

rb +

2.0

pendi

met

hal

in fb

1.0

DPR

Eth

iobe

nca

rb +

2.0

(pro

panil

+ m

olin

ate)

4.5

LPO

ST

510

18

00

062

55Th

iobe

nca

rb +

3.0

prop

anil

3.0

EPO

ST

00

100

00

063

00Th

iobe

nca

rb +

3.0

(pro

panil

+ m

olin

ate)

4.5

EPO

ST

00

60

00

069

75Th

iobe

nca

rb +

2.0

prop

anil

fb3.

0E

PO

ST

thio

benca

rb +

2.0

prop

anil

3.0

LPO

ST

00

39

00

066

15

LSD

(0.0

5)

101

52

NS

NS

NS

747

AAES RESEARCH SERIES 462

148

Tab

le 4

2. P

endim

eth

alin

(Penta

gon a

nd P

row

l) fo

r weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

2. P

endim

eth

alin

(Penta

gon a

nd P

row

l) fo

r weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

2. P

endim

eth

alin

(Penta

gon a

nd P

row

l) fo

r weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

2. P

endim

eth

alin

(Penta

gon a

nd P

row

l) fo

r weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

2. P

endim

eth

alin

(Penta

gon a

nd P

row

l) fo

r weed c

ontr

ol i

n ri

ce, L

onoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e.................................................................M

ay 7

, 1997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e......................................................

Sept

embe

r 19, 1

997

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

...............................................................R

ice

/ Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od...................................................Ju

ne 1

9 a

nd 2

0, 1

997

Soil t

ype

...........................C

alho

un silt

loam

(2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts: T

he

Penta

gon D

F fo

rmula

tion

did

not

dis

solv

e w

ell i

n w

ater

and

left a

n o

range

slu

dge

at the

bott

om o

f the

spra

y bo

ttle

s af

ter

appl

icat

ion.

DPR

E =

del

ayed

pre

emer

gence

; E

PO

ST =

ear

ly p

oste

mer

gence

.App

licat

ion typ

eD

PR

EE

PO

ST

Dat

e ap

plie

dM

ay 1

2, 1

997

May

29,

199

7Ti

me

5:00

pm

6:45

pm

Inco

rpor

atio

n e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)60

/ 6

280

/ 8

0R

elat

ive

hum

idity

(%)

6638

Win

d (m

ph, d

irec

tion)

44.

5W

eath

ercl

oudy

clea

rSoi

l moi

sture

moi

stda

mp

Cro

p st

age/

Hei

ght

N/A

2-3

lf /

3"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

20 /

6 /

20

Gpa

/ P

si10

/ 2

410

/ 2

5W

eed s

pec

ies

(pop

ula

tion

): (h

eigh

t /

# le

aves

)B

RAPP

(30/

ft2)

N/A

2-3

lf /

2"PO

LSS (1

/ft2

)N/

Aco

ty. /

2"

Con

clusi

ons:

All

trea

tmen

ts p

rovi

ded

exce

llent br

oadl

eaf s

ignal

gras

s co

ntr

ol. S

mar

twee

d co

ntr

ol w

as b

ette

r w

ith q

uin

clor

ac +

pen

dim

ethal

in a

pplie

d D

PRE

. Th

ePe

nta

gon fo

rmula

tion

did

not

dis

solv

e w

ell,

and

continual

agi

tation

was

nec

essa

ry.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

149

Tab

le 4

2.

Wee

d co

ntr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Sm

artw

eed (P

OLS

S)

Her

bici

deR

ate

timin

g5/

306/

96/

176/

277/

238/

219/

27/

238/

219/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

Quin

clor

ac +

0.37

pendi

met

hal

in(P

enta

gon)

1.0

DPR

E90

100

100

9810

010

010

093

8378

Quin

clor

ac +

0.37

pendi

met

hal

in(P

row

l)1.

0D

PR

E90

100

100

9810

010

010

086

8074

Quin

clor

ac +

0.18

8pe

ndi

met

hal

in(P

enta

gon)

1.0

DPR

E90

100

100

100

100

100

100

9379

80Q

uin

clor

ac fb

0.18

8D

PR

Epe

ndi

met

hal

in(P

row

l)1.

0E

PO

ST

9096

100

100

100

100

100

500

0Q

uin

clor

ac +

0.5

pendi

met

hal

in(P

enta

gon

)1.

0E

PO

ST

093

100

100

100

100

100

00

0Q

uin

clor

ac +

0.5

pendi

met

hal

in(P

row

l)1.

0E

PO

ST

093

100

100

100

100

100

4833

0Pr

opan

il +

3.0

quin

clor

ac +

0.12

5Pe

net

rato

r Pl

us

(1 p

t/A)

EPO

ST

098

100

100

100

100

100

9896

95

LSD

(0.0

5)

15

14

11

112

2113

conti

nued

AAES RESEARCH SERIES 462

150

Tab

le 4

2.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

5/30

6/9

6/17

6/27

7/23

8/21

9/2

yiel

d(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

026

55Q

uin

clor

ac +

0.37

pendi

met

hal

in(P

enta

gon)

1.0

DPR

E10

40

00

00

6120

Quin

clor

ac +

0.37

pendi

met

hal

in(P

row

l)1.

0D

PR

E10

00

00

00

5940

Quin

clor

ac +

0.18

8pe

ndi

met

hal

in(P

enta

gon)

1.0

DPR

E10

10

00

00

6300

Quin

clor

ac fb

0.18

8D

PR

Epe

ndi

met

hal

in(P

row

l)1.

0E

PO

ST

100

00

00

060

30Q

uin

clor

ac +

0.5

pendi

met

hal

in(P

enta

gon

)1.

0E

PO

ST

00

00

00

062

55Q

uin

clor

ac +

0.5

pendi

met

hal

in(P

row

l)1.

0E

PO

ST

03

00

00

059

85Pr

opan

il +

3.0

quin

clor

ac +

0.12

5Pe

net

rato

r Pl

us

(1 p

t/A)

EPO

ST

05

00

00

064

35

LSD

(0.0

5)

NS

NS

NS

NS

NS

NS

NS

787

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

151

Tab

le 4

3. Pre

flood w

eed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

3. Pre

flood w

eed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

3. Pre

flood w

eed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

3. Pre

flood w

eed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

3. Pre

flood w

eed c

ontr

ol i

n ri

ce, L

onoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e.................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e......................................................

Sept

embe

r 28, 1

997

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

...............................................................R

ice

/ Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od...................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

...........................C

alho

un silt

loam

(2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts: 3

-4 L

F =

3-4

leaf

ric

e; P

RE

FL

= pr

eflo

od.

App

licat

ion typ

e3-

4 LF

PR

EFL

Dat

e ap

plie

dJu

ne

4, 1

997

June

17, 1

997

Tim

e9:

45 a

m3:

15 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)69

/ 6

285

/ 7

8R

elat

ive

hum

idity

(%)

7042

Win

d (m

ph, d

irec

tion)

4.5

4W

eath

ercl

oudy

part

ly c

loudy

Soi

l moi

sture

dam

pso

ggy

Cro

p st

age/

Hei

ght

4-5

lf /

4"6

lf /

6"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

22 /

6 /

20

24 /

6 /

20

Gpa

/ P

si10

/ 2

610

/ 2

4W

eed s

pec

ies

(pop

ula

tion

): (h

eigh

t /

# le

aves

)B

RAPP

(15/

ft2)

3 lf

/ 2-

4"N/

AIP

OSS (2

-7/f

t2)

4 lf

/ 3"

2-4

lf /

3-6"

POLL

A (1

/ft2

)8

lf /

5"4-

6 lf

/ 3-

6"C

YPE

S (2

-4/f

t2 )7

lf /

8"7

lf /

15"

SE

BE

X 1

</ft2

)2

lf /

4"5

lf /

6"

AAES RESEARCH SERIES 462

152

Con

clusi

ons:

F84

26-2

(Shar

k) p

rovi

ded

effe

ctiv

e sm

artw

eed

contr

ol.

Ther

e w

as s

ome

anta

gonis

m w

ith F

8426

-2 +

pro

panil.

All

trea

tmen

ts c

ontr

olle

d hem

pse

sban

ia.

F84

26-2

is p

rim

arily

a b

road

leaf

her

bici

de fo

r ri

ce.

Res

earc

h w

ill b

e ex

pande

d in

199

8.

Tab

le 4

3.

Wee

d co

ntr

olB

road

leaf

sig

nal

gras

sH

emp

sesb

ania

Pale

sm

artw

eed

App

licat

ion

(BR

APP)

(SE

BE

X)

(PO

LLA

)H

erbi

cide

Rat

etim

ing

6/17

9/8

7/22

8/20

9/8

7/22

8/20

9/8

(lb/A

)(%

)

All

trea

tmen

ts w

ere

trea

ted

wit

h fen

oxap

rop,

0.0

75 lb

/A a

t 3-4

LF:

Untr

eate

d ch

eck

00

00

00

00

F84

26-2

+0.

01A

G-9

8 (0

.25%

)PR

EFL

100

100

100

100

100

9398

95F84

26-2

+0.

02A

G-9

8 (0

.25%

)PR

EFL

100

100

100

100

100

8890

95F84

26-2

+0.

03A

G-9

8 (0

.25%

)PR

EFL

100

100

100

100

100

100

9998

F84

26-2

+0.

02pr

opan

il1.

0PR

EFL

100

100

100

100

100

6388

80F84

26-2

+0.

02pr

opan

il2.

0PR

EFL

100

100

100

100

100

8395

85F84

26-2

+0.

02pr

opan

il4.

0PR

EFL

100

100

100

100

100

8393

80Th

iobe

nca

rb4.

0PR

EFL

100

100

100

100

100

010

30(P

ropa

nil

+ m

olin

ate)

6.0

PR

EFL

100

100

100

100

100

7884

81Pr

opan

il4.

0PR

EFL

100

100

9895

100

7086

85Q

uin

clor

ac +

0.38

Agr

i-D

ex (1

%)

PR

EFL

100

100

100

100

100

030

35Tr

iclo

pyr

+0.

25A

G-9

8 (0

.25%

)PR

EFL

100

100

100

100

100

2828

28

LSD

(0.0

5)

11

24

126

2427

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

153

Tab

le 4

3.

Con

tinued

.W

eed

contr

olM

ornin

gglo

ry s

pp.

Ecl

ipta

App

licat

ion

(IPO

SS

)(E

CLA

L)

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/17

6/17

9/17

7/22

8/20

9/8

yiel

d(lb

/A)

(%)

(lb/A

)

All

trea

tmen

ts w

ere

trea

ted

wit

h fen

oxap

rop,

0.7

5; 3

-4 L

F:

Untr

eate

d ch

eck

00

00

00

5265

F84

26-2

+0.

01A

G-9

8 (0

.25%

)PR

EFL

00

00

00

6435

F84

26-2

+0.

02A

G-9

8 (0

.25%

)PR

EFL

00

00

00

6165

F84

26-2

+0.

03A

G-9

8 (0

.25%

)PR

EFL

00

00

00

6030

F84

26-2

+0.

02pr

opan

il1.

0PR

EFL

00

00

00

5805

F84

26-2

+0.

02pr

opan

il2.

0PR

EFL

00

00

40

6570

F84

26-2

+0.

02pr

opan

il4.

0PR

EFL

00

00

00

6480

Thio

benca

rb4.

0PR

EFL

00

00

00

6075

(Pro

panil

+ m

olin

ate)

6.0

PR

EFL

00

00

30

6435

Prop

anil

4.0

PR

EFL

00

00

00

5490

Quin

clor

ac +

0.38

Agr

i-D

ex (1

%)

PR

EFL

00

00

00

5625

Tric

lopy

r +

0.25

AG

-98 (0

.25%

)PR

EFL

00

03

00

6075

LSD

(0.0

5)

NS

NS

NS

NS

NS

NS

711

AAES RESEARCH SERIES 462

154

Tab

le 4

4. P

ropan

il (S

uper W

ham

) in

rice

, Lonoke

.Tab

le 4

4. P

ropan

il (S

uper W

ham

) in

rice

, Lonoke

.Tab

le 4

4. P

ropan

il (S

uper W

ham

) in

rice

, Lonoke

.Tab

le 4

4. P

ropan

il (S

uper W

ham

) in

rice

, Lonoke

.Tab

le 4

4. P

ropan

il (S

uper W

ham

) in

rice

, Lonoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

......................................................................................

Lono

kePl

anting

dat

e.................................................................M

ay 7

, 1997

Expe

rimen

tal D

esig

n /

repl

icat

ions

...............................................

RCB /

4Har

vest

dat

e.....................................................

Sept

embe

r 28, 1

997

Plot si

ze........................................................................

10 ft

by 20 ft

Crop

/Var

iety

...............................................................R

ice

/ Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od..................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

..........................

Cal

houn

silt

loam

(2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts: 2-

3 LF

= 2

-3 le

af r

ice;

4 L

F =

4 le

af r

ice;

6 L

F =

6 le

af r

ice.

App

licat

ion typ

e2-

3 LF

4 LF

6 LF

Dat

e ap

plie

dM

ay 2

9, 1

997

June

4, 1

997

June

17, 1

997

Tim

e7:

30 p

m9:

15 a

m3:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AN/

AAir/S

oil t

empe

ratu

re (F

)74

/ 7

869

/ 6

285

/ 8

5R

elat

ive

hum

idity

(%)

6073

42W

ind

(mph

, direc

tion)

21.

54

Wea

ther

clea

rcl

oudy

part

ly c

loudy

Soi

l moi

sture

dam

pda

mp

sogg

yC

rop

stag

e/H

eigh

t1-

2 lf

/ 3"

4 lf

/ 4"

4-6

lf /

5"Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 / 3

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

22 /

6 /

20

22 /

6 /

20

Gpa

/ P

si10

/ 2

510

/ 2

710

/ 2

5W

eed s

pec

ies

(pop

ula

tion

):(h

eigh

t /

# le

aves

)B

RAPP

(20-

28/f

t2)

2 lf

/ 0.

25"

3 lf

/ 2"

4 lf

/ 3"

IPO

SS (<

1/ft

2 )co

ty. /

1"

2 lf

/ 2"

3 lf

/ 2"

Con

clusi

ons:

All

trea

tmen

ts in

this

stu

dy e

ffect

ivel

y co

ntr

olle

d br

oadl

eaf s

ignal

gras

s w

ithou

t si

gnifi

cant di

ffere

nce

s in

yie

ld.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

155

Tab

le 4

4.

Wee

d co

ntr

olM

ornin

gglo

ry s

p.E

clip

taApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

(IPO

SS

)(E

CLA

L)

Her

bici

deR

ate

timin

g6/

99/

177/

37/

228/

209/

86/

96/

17(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

Prop

anil

+2.

0Pe

net

rato

r Pl

us

(1 p

t/A)

2-3

LF99

8810

094

9890

9986

Prop

anil

+ qu

incl

orac

+2.

0 +

0.09

4Pe

net

rato

r Pl

us

(1 p

t/A)

2-3

LF10

010

010

010

010

010

010

010

0Pr

opan

il +

quin

clor

ac +

2.0

+ 0.

125

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF10

010

010

010

010

010

010

010

0Pr

opan

il +

3.0

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF10

091

100

9610

089

100

94Pr

opan

il +

quin

clor

ac +

3.0

+ 0.

094

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF10

098

100

100

100

100

100

100

Prop

anil

+ qu

incl

orac

+3.

0 +

0.12

5Pe

net

rato

r Pl

us

(1 p

t/A)

2-3

LF10

010

010

010

010

010

010

010

0Pr

opan

il +

4.0

Penet

rato

r Pl

us

(1 p

t/A)

4 LF

100

9910

010

010

010

010

010

0Pr

opan

il +

quin

clor

ac +

4.0

+ 0.

125

Penet

rato

r Pl

us

(1 p

t/A)

4 LF

100

100

100

100

100

100

100

100

Prop

anil

+ qu

incl

orac

+4.

0 +

0.18

8Pe

net

rato

r Pl

us

(1 p

t/A)

4 LF

100

100

100

100

100

100

100

100

Prop

anil

+ qu

incl

orac

+4.

0 +

0.12

5Pe

net

rato

r Pl

us

(1 p

t/A)

6 LF

00

100

9910

095

00

Prop

anil

+ qu

incl

orac

+4.

0 +

0.18

8Pe

net

rato

r Pl

us

(1 p

t/A)

6 LF

00

100

9910

099

00

LSD

(0.0

5)

13

02

28

15

conti

nued

AAES RESEARCH SERIES 462

156

Tab

le 4

4.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/9

9/17

7/3

7/22

8/20

9/8

yiel

d(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

2340

Prop

anil

+2.

0Pe

net

rato

r Pl

us

(1 p

t/A)

2-3

LF0

00

00

057

15Pr

opan

il +

quin

clor

ac +

2.0

+ 0.

094

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF0

00

00

061

20Pr

opan

il +

quin

clor

ac +

2.0

+ 0.

125

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF0

30

00

058

05Pr

opan

il +

3.0

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF0

00

00

054

00Pr

opan

il +

quin

clor

ac +

3.0

+ 0.

094

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF0

03

00

058

05Pr

opan

il +

quin

clor

ac +

3.0

+ 0.

125

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF0

11

00

056

25Pr

opan

il +

4.0

Penet

rato

r Pl

us

(1 p

t/A)

4 LF

14

40

04

5445

Prop

anil

+ qu

incl

orac

+4.

0 +

0.12

5Pe

net

rato

r Pl

us

(1 p

t/A)

4 LF

18

10

00

5355

Prop

anil

+ qu

incl

orac

+4.

0 +

0.18

8Pe

net

rato

r Pl

us

(1 p

t/A)

4 LF

310

10

03

5805

Prop

anil

+ qu

incl

orac

+4.

0 +

0.12

5Pe

net

rato

r Pl

us

(1 p

t/A)

6 LF

00

30

03

5805

Prop

anil

+ qu

incl

orac

+4.

0 +

0.18

8Pe

net

rato

r Pl

us

(1 p

t/A)

6 LF

00

10

00

6435

LSD

(0.0

5)

NS

4N

SN

SN

SN

S78

8

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

157

Tab

le 4

5.

Pro

pan

il s

yner

gist

s, L

onok

e.

TEST INFO

RM

ATIO

N

Loca

tion

..................................................................................

Lonok

ePl

antin

g da

te..............................................................

May

7, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

..............................................

RC

B /

4H

arve

st d

ate

...................................................S

epte

mbe

r 21

, 199

7Plo

t si

ze.....................................................................

6 ft

by 2

0 ft

Cro

p/Var

iety

..............................................................

Ric

e/C

ypre

ssR

ow w

idth

/ N

um

ber of

row

s pe

r pl

ot.....................................7

in /

9 row

sD

ate

of F

lood

................................................

June

19 a

nd

20, 1

997

Soi

l typ

e..........................

Cal

hou

n s

ilt lo

am (2

% s

and,

86%

silt

, 12%

cla

y)%

OM

/ p

H /

CEC

....

..................................................

...

1.9

/ 4.

6 /

7

Com

men

ts: F

ertiliz

er: 1

00 lb

/A N

pre

flood

; 200

lb/A

at 0.

5-in

ch in

tern

ode

fb 1

00 lb

/A 1

0 da

ys la

ter.

EPO

ST

= ea

rly

post

emer

gence

; LPO

ST

= la

te p

oste

mer

gence

.App

licat

ion typ

eE

PO

ST

LPO

ST

Dat

e ap

plie

dM

ay 2

9, 1

997

June

10, 1

997

Tim

e4:

00 p

m7:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)83

/ 8

381

/ 8

0R

elat

ive

hum

idity

(%)

7977

Win

d (m

ph, d

irec

tion)

50

Wea

ther

clea

rcl

ear

Soi

l moi

sture

moi

stm

oist

Cro

p st

age/

Hei

ght

2-3

leaf

/ 5

in.

4-5

leaf

/ 8

in.

Spr

ayer

type

/mph

Bac

kpac

k C

O2 /

3B

ackp

ack

CO

2 / 3

Noz

zle

type/

Siz

eTe

eJet

SS /

110

02Te

eJet

SS /

110

02B

oom

ht /

# N

oz /

Spa

cing

(in.)

16" /

4 /

20"

16" /

4 /

20"

Gpa

/ P

si15

/ 2

815

/ 2

8W

eed s

pec

ies

(pop

ula

tion

):(h

eigh

t /

# le

aves

)B

RAPP

(7-1

5/ft

2 )2-

lf /

1 in

. / 7

-10

ft2til

lerin

g /

3-4

in. /

15

ft2

Con

clusi

ons:

This

tes

t w

as c

ondu

cted

in o

rder

to

eval

uat

e pro

pan

il sy

ner

gist

act

ivity

on b

road

leaf

sig

nal

gras

s an

d r

ice.

The

hig

hes

t yi

eld w

as o

bta

ined

with

prop

anil

+ pi

pero

phos

+ q

uin

clor

ac, b

ut th

is w

as n

ot s

ignifi

cantly

diffe

rent fr

om m

ost ot

her

tre

atm

ents

. The

sequ

ential

app

licat

ions

of p

ropa

nil

+ pi

pero

phos

and

prop

anil

+ ca

rbar

yl r

esulte

d in

red

uce

d yi

elds

and

hig

h in

jury

(38

and

30%

, res

pect

ivel

y).

AAES RESEARCH SERIES 462

158

Tab

le 4

5.

App

licat

ion

Bro

adle

af s

ignal

gras

s co

ntr

olR

ice

inju

ryR

ice

Trea

tmen

tR

ate

timin

g6/

106/

187/

17/

296/

106/

187/

17/

29yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

2178

Prop

anil

3.0

EPO

ST

7678

9373

55

30

5751

Prop

anil

+ an

iloph

os3.

0 +

0.5

EPO

ST

7676

8679

108

51

5465

Prop

anil

+ pi

pero

phos

3.0

+ 0.

75E

PO

ST

9493

9489

2013

113

5520

Prop

anil

+ ca

rbar

yl3.

0 +

0.1

EPO

ST

9391

9586

2421

136

4853

(Pro

panil

+ m

olin

ate)

4.5

EPO

ST

8989

9385

119

60

5023

Prop

anil

fb3.

0 fb

EPO

ST

prop

anil

3.0

LPO

ST

7988

9495

810

40

6024

Prop

anil

+ an

iloph

os3.

0 +

0.5

EPO

ST

fb p

ropa

nil

+fb

3.0

+an

iloph

os0.

5LPO

ST

8485

9388

1413

161

5146

Prop

anil

+ pi

pero

phos

3.0

+ 0.

75E

PO

ST

fb p

ropa

nil

+fb

3.0

+pi

pero

phos

0.75

LPO

ST

8991

9595

1015

6538

4635

Prop

anil

+ ca

rbar

yl3.

0 +

0.1

EPO

ST

fb p

ropa

nil

+fb

3.0

+ca

rbar

yl0.

1LPO

ST

8895

9595

2339

5830

4937

(Pro

panil

+ m

olin

ate)

fb4.

5 fb

EPO

ST

(pro

panil

+ m

olin

ate)

4.5

LPO

ST

8694

9595

1315

100

5738

Prop

anil

+ an

iloph

os3.

0 +

0.5

+ th

iobe

nca

rb3.

0E

PO

ST

9595

9595

109

60

5486

Prop

anil

+ an

iloph

os3.

0 +

0.5

+ qu

incl

orac

+ 0.

375

EPO

ST

9595

9595

109

40

5622

Prop

anil

+ an

iloph

os3.

0 +

0.5

+ pe

ndi

met

hal

in+

1.0

EPO

ST

9595

9593

1513

93

5445

Prop

anil

+ pi

pero

phos

3.0

+ 0.

75+

thio

benca

rb+

3.0

EPO

ST

9493

9595

119

80

5336

Prop

anil

+ pi

pero

phos

3.0

+ 0.

75+

quin

clor

ac+

0.37

5E

PO

ST

9595

9595

1413

130

6132

Prop

anil

+ pi

pero

phos

3.0

+ 0.

75+p

endi

met

hal

in1.

0E

PO

ST

9393

9594

1511

130

5567

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

159

Tab

le 4

5. C

onti

nued

.

App

licat

ion

Bro

adle

af s

ignal

gras

s co

ntr

olR

ice

inju

ryR

ice

Trea

tmen

tR

ate

timin

g6/

106/

187/

17/

296/

106/

187/

17/

29yi

eld

(lb/A

)(%

)(lb

/A)

Prop

anil

+ ca

rbar

yl3.

0 +

0.1

+ th

iobe

nca

rb+

3.0

EPO

ST

9595

9595

3426

225

5427

Prop

anil

+ ca

rbar

yl3.

0 +

0.1

+ qu

incl

orac

+ 0.

375

EPO

ST

9595

9595

2720

232

5908

Prop

anil

+ ca

rbar

yl3.

0 +

0.1

+ pe

ndi

met

hal

in+

1.0

EPO

ST

9595

9594

3324

164

5282

(Pro

panil

+ m

olin

ate)

+4.

5+

thio

benca

rb+

3.0

EPO

ST

5890

9595

88

70

5962

(Pro

panil

+ m

olin

ate)

+4.

5+

quin

clor

ac+

0.37

5E

PO

ST

9595

9595

1510

50

5704

(Pro

panil

+ m

olin

ate)

+4.

5+

pendi

met

hal

in+

1.0

EPO

ST

9393

9592

1311

83

5581

Prop

anil

+ th

iobe

nca

rb3.

0 +

3.0

EPO

ST

9089

9588

1410

30

5817

Prop

anil

+ qu

incl

orac

3.0

+ 0.

375

EPO

ST

9591

9594

1410

40

5765

Prop

anil

+3.

0 +

pendi

met

hal

in1.

0E

PO

ST

7876

8481

1310

111

5649

LSD

(0.0

5)

148

910

86

96

1026

AAES RESEARCH SERIES 462

160

Tab

le 4

6. Ear

ly p

ost

em

erg

ence

weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

6. Ear

ly p

ost

em

erg

ence

weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

6. Ear

ly p

ost

em

erg

ence

weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

6. Ear

ly p

ost

em

erg

ence

weed c

ontr

ol i

n ri

ce, L

onoke

.Tab

le 4

6. Ear

ly p

ost

em

erg

ence

weed c

ontr

ol i

n ri

ce, L

onoke

.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.......................................................................................L

onok

ePl

anting

dat

e.................................................................

May

7, 1

997

Expe

rimen

tal D

esig

n /

repl

icat

ions

................................................

RCB /

4Har

vest

dat

e.......................................................S

epte

mbe

r 30, 1

997

Plot si

ze.......................................................................10 ft

by 20 ft

Crop

/Var

iety

...............................................................Ric

e /

Cyp

ress

Row

wid

th /

Num

ber o

f row

s pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od....................................................

June

19 a

nd 2

0, 1

997

Soil t

ype

...........................C

alho

un silt

loam

(2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.9

/ 4

.6

Com

men

ts: 2

-3 L

F =

2-3

leaf

ric

e; P

RE

LF =

pre

flood

.App

licat

ion typ

e2-

3 LF

PR

EFL

Dat

e ap

plie

dM

ay 2

9, 1

997

June

18, 1

997

Tim

e7:

50 p

m11

:00

amIn

corp

orat

ion e

quip

men

tN/

AN/

AAir/S

oil t

empe

ratu

re (F

)74

/ 6

878

/ 7

2R

elat

ive

hum

idity

(%)

6065

Win

d (m

ph, d

irec

tion)

20

Wea

ther

clea

rcl

ear

Soi

l moi

sture

dam

pw

etC

rop

stag

e/H

eigh

t2

lf /

3"4-

5 til

lers

/ 7

.5"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

BkP

kCO

2 /

3N

ozzl

e ty

pe/

Siz

eD

riftg

uar

d /

1100

15D

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

22 /

6 /

20

22 /

6 /

20

Gpa

/ P

si10

/ 2

510

/ 2

5W

eed s

pec

ies

(pop

ula

tion

):(h

eigh

t /

# le

aves

)B

RAPP

(20/

ft2 a

t 2-

3 LF

; 6/f

t2 P

RE

FL)

1-3

lf /

1"4

lf /

3"C

oncl

usi

ons:

Man

y of

the

redu

ced

rate

pro

gram

s co

ntinue

to p

rovi

de g

rass

con

trol

and

rice

yie

ld e

quiv

alen

t to

that

of l

abel

ed r

ate

prog

ram

s. T

her

e w

as li

ttle

inju

ry fr

om the

trea

tmen

ts, a

nd

seve

ral g

ave

100%

gra

ss c

ontr

ol.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

161

Tab

le 4

6.

Con

tinued

.App

licat

ion

B

road

leaf

sig

nal

gras

s (B

RA

PP) c

ontr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

96/

177/

37/

238/

196/

96/

177/

37/

238/

19yi

eld

(lb/A

)(%

)(lb

/A)

Untr

eate

d ch

eck

00

00

00

00

00

4590

Prop

anil

(Sta

m M

-4)

4.0

2-3

LF78

4310

068

620

00

00

6435

Prop

anil

(Sta

m 8

0 D

F) +

4.0

AG

-98 (0

.25%

)2-

3 LF

6740

9357

510

00

00

6750

Prop

anil

(Supe

r W

ham

) +4.

0Pe

net

rato

r Pl

us

(1 p

t/A)

2-3

LF83

5010

070

580

00

00

5805

(Pro

panil

+ m

olin

ate)

6.0

2-3

LF96

9010

093

923

00

40

6615

Prop

anil

(Sta

m M

-4) f

b3.

02-

3 LF

prop

anil

(Sta

m M

-4)

3.0

PR

EFL

8474

100

100

100

30

06

071

55Pr

opan

il (S

tam

80

DF) +

3.0

AG

-98 (0

.25%

) fb

2-3

LFpr

opan

il (S

tam

80

DF) +

3.0

AG

-98 (0

.25%

)PR

EFL

8035

100

9999

00

03

068

40(P

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

(pro

panil

+ m

olin

ate)

4.5

PR

EFL

7848

100

9910

00

00

00

6255

Prop

anil

(Supe

r W

ham

) +3.

0Pe

net

rato

r Pl

us

(1 p

t/A) f

b2-

3 LF

prop

anil

(Supe

r W

ham

) +3.

0Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

9680

100

100

100

00

315

070

65Q

uin

clor

ac +

0.12

5A

gri-D

ex (1

%)

2-3

LF83

9610

010

010

00

00

00

6210

Quin

clor

ac +

0.25

Agr

i-D

ex (1

%)

2-3

LF95

100

9810

010

00

00

50

6570

Quin

clor

ac +

0.37

5A

gri-D

ex (1

%)

2-3

LF96

100

100

100

100

00

00

076

95Pr

opan

il (S

tam

M-4

) +3.

0qu

incl

orac

0.12

52-

3 LF

100

100

100

100

100

00

1320

870

65Pr

opan

il (S

tam

M-4

) +3.

0qu

incl

orac

0.25

2-3

LF99

100

100

100

100

00

010

063

90Pr

opan

il (S

tam

M-4

)3.

02-

3 LF

7060

100

8084

00

08

068

40Pr

opan

il (S

tam

M-4

) +3.

0th

iobe

nca

rb3.

02-

3 LF

8683

100

9086

00

00

072

45co

nti

nued

AAES RESEARCH SERIES 462

162

Tab

le 4

6.

Con

tinued

.App

licat

ion

B

road

leaf

sig

nal

gras

s (B

RA

PP) c

ontr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

96/

177/

37/

238/

196/

96/

177/

37/

238/

19yi

eld

(lb/A

)(%

)(lb

/A)

Prop

anil

(Sta

m 8

0DF) +

3.0

thio

benca

rb +

3.0

AG

-98 (0

.25%

)2-

3 LF

8980

100

8487

00

03

070

20Pr

opan

il (S

tam

M-4

) +3.

0pe

ndi

met

hal

in1.

02-

3 LF

9388

100

9396

00

010

067

95Pr

opan

il (S

tam

80D

F) +

3.0

pendi

met

hal

in +

1.0

AG

-98 (0

.25%

)2-

3 LF

5347

100

6357

00

00

058

50Pr

opan

il (S

tam

80D

F) +

3.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)2–3

LF

100

100

100

100

100

41

05

072

45Pr

opan

il (S

upe

r W

ham

) +3.

0qu

incl

orac

+0.

125

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF10

010

010

010

010

04

00

00

6750

(Pro

panil

+ m

olin

ate)

+4.

5qu

incl

orac

0.12

52-

3 LF

100

100

100

100

100

00

36

272

90Pr

opan

il (S

tam

M-4

) +2.

0qu

incl

orac

0.12

52-

3 LF

9910

010

010

010

00

00

50

6750

Prop

anil

(Sta

m M

-4) +

2.0

quin

clor

ac0.

252-

3 LF

100

100

100

100

100

00

015

067

05Pr

opan

il (S

upe

r W

ham

) +2.

0qu

incl

orac

+0.

125

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF10

098

100

100

100

00

08

270

65Pr

opan

il (S

upe

r W

ham

) +2.

0qu

incl

orac

+0.

25Pe

net

rato

r Pl

us

(1 p

t/A)

2-3

LF10

010

010

010

010

00

00

90

7560

Prop

anil

(Sta

m 8

0DF) +

2.0

quin

clor

ac +

0.12

5A

G-9

8 (0

.25%

)2-

3 LF

9810

010

010

010

00

00

80

7245

Prop

anil

(Sta

m 8

0DF) +

2.0

quin

clor

ac +

0.25

AG

-98 (0

.25%

)2-

3 LF

9910

010

010

010

03

05

152

6300

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

163

Tab

le 4

6.

Con

tinued

.App

licat

ion

B

road

leaf

sig

nal

gras

s (B

RA

PP) c

ontr

olR

ice

inju

ryR

ice

Her

bici

deR

ate

timin

g6/

96/

177/

37/

238/

196/

96/

177/

37/

238/

19yi

eld

(lb/A

)(%

)(lb

/A)

(Pro

panil

+ m

olin

ate)

+3.

0qu

incl

orac

0.12

52-

3 LF

100

100

100

100

100

00

310

070

20(P

ropa

nil

+ m

olin

ate)

+3.

0qu

incl

orac

0.25

2-3

LF10

010

010

010

010

00

04

100

6975

LSD

(0.0

5)

1011

39

14N

SN

SN

SN

SN

S12

69

AAES RESEARCH SERIES 462

164

Tab

le 4

7.

Bro

adle

af w

eed

contr

ol in r

ice,

Lon

oke.

TEST INFO

RM

ATIO

N

Loca

tion

.................................................................................L

onok

ePl

antin

g da

te.............................................................

May

7, 1

997

Exp

erim

enta

l Des

ign /

rep

licat

ions

.............................................RC

B /

4H

arve

st d

ate

...................................................Sep

tem

ber

27, 1

997

Plo

t si

ze...................................................................1

0 ft

by 2

0 ft

Cro

p/Var

iety

...........................................................R

ice

/ C

ypre

ssR

ow w

idth

/ N

um

ber of

row

s pe

r pl

ot................................

7.5

in /

16

row

sD

ate

of F

lood

................................................

June

19 a

nd

20, 1

997

Soi

l typ

e.........................C

alhou

n s

ilt lo

am (2

% s

and,

86%

silt

, 12%

cla

y)%

OM

/ p

H..............

..................................................

......

1.9

/ 4.

6

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; 2-3

LF =

2-3

leaf

ric

e; 3

-4 L

F =

3-4

leaf

ric

e; +

1 D

AY =

one

day

follo

win

g 3-4

leaf

tre

atm

ents

; PR

EFL

= pre

flood

;PO

FL

= po

stflo

od; P

I = p

anic

le in

itia

tion

. The

Supe

r W

ham

form

ula

tion

of p

ropa

nil

was

use

d.App

licat

ion typ

eD

PR

E2-

3 LF

3-4

LF+1

DA

YPR

EFL

PO

FL

PI

Dat

e ap

plie

dM

ay 1

2, 1

997

May

29,

199

7Ju

ne

4, 1

997

June

5, 1

997

June

17, 1

997

June

27, 1

997

July

7, 1

997

Tim

e5:

00 p

m7:

15 p

m8:

30 a

m9:

05 a

m2:

30 p

m10

:10

am12

:15

pmAir/S

oil t

empe

ratu

re (F

)60

/ 6

274

/ 6

869

/ 6

267

/ 6

185

/ 7

886

/ 8

088

/ 7

8R

elat

ive

hum

idity

(%)

6660

7359

4263

46W

ind

(mph

, direc

tion)

42

3.5

4.5

40

2W

eath

ercl

oudy

mos

tly c

loudy

clou

dym

ostly

cle

arpa

rtly

clo

udy

clea

rm

ostly

cle

arSoi

l moi

sture

moi

stm

oist

dam

pda

mp

sogg

yw

etw

etC

rop

stag

e/H

eigh

tN/

A1-

2 lf

/ 2"

3 lf

/ 3"

3 lf

/ 3"

4-5

lf /

6"5

tille

r /

14"

5 til

ler /

16"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

22 /

6 /

20

22 /

6 /

20

22 /

6 /

20

20 /

6 /

20

20 /

6 /

20

18 /

6 /

20

Gpa

/ P

si10

/ 2

410

/ 2

610

/ 2

510

/ 2

610

/ 2

410

/ 2

210

/ 2

4W

eed s

pec

ies

(pop

ula

tion

May

29):

(hei

ght /

# le

aves

)B

RAPP

(20/

ft2)

N/A

3 lf

/ 1-

2"3

lf /

3"4-

5 lf

/ 3-

4"3

lf /

4" 8

-10"

12"

POLL

A (1

/ft2

)N/

A6-

8 lf

/ 5"

9 lf

/ 7"

3-4

lf /

3"3

lf /

2.5"

N/A

12"

IPO

SS (2

/ft2

)N/

Aco

ty. /

1"

3 lf

/ 3"

2-4

lf /

2-3"

2 lf

/ 3"

N/A

N/A

CYPE

S (1

/ft2

)N/

A3-

5 lf

/ 6-

8"5

lf /

6-8"

7-9

lf /

12-1

6" 1

7" 3

2-36

"N/

ASE

NO

B (<

1/ft

2 )N/

A2

lf /

2"2

lf /

2"1-

2 lf

/ 2"

N/A

N/A

N/A

SE

BE

X (<

1/ft2 )

N/A

2 lf

/ 2"

2 lf

/ 2"

2-3

lf /

3"N/

AN/

A 2

4"C

oncl

usi

ons:

All

prop

anil

appl

icat

ions

at the

2- to

3-lf

tim

ing

prov

ided

exc

elle

nt co

ntr

ol o

f the

broa

dlea

f spe

cies

. A P

I tre

atm

ent fo

llow

ing

fenox

apro

p di

d not

prov

ide

acce

ptab

le c

ontr

ol o

f the

broa

dlea

f wee

ds. H

emp

sesb

ania

con

trol

in thes

e pl

ots

was

esp

ecia

lly p

oor.

Mos

t tr

eatm

ents

effe

ctiv

ely

contr

olle

d br

oadl

eaf

sign

algr

ass

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

165

Tab

le 4

7.

Wee

d co

ntr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Pal

e sm

artw

eed (P

OLL

A)

Her

bici

deR

ate

timin

g6/

26/

46/

96/

277/

238/

209/

26/

26/

48/

209/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

00

0B

ensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

bensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

5586

9395

9910

010

084

9410

010

0B

ensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

bensu

lfuro

n +

0.02

8(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

7983

9410

099

100

9998

9910

010

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ebe

nsu

lfuro

n +

0.03

8In

duce

(0.2

5%)

PR

EFL

9910

010

096

100

100

100

880

00

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ebe

nsu

lfuro

n +

0.04

7(p

ropa

nil

+ m

olin

ate)

1.5

PO

FL

3055

380

180

086

098

85Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ehal

osulfu

ron +

0.06

3In

duce

(0.2

5%)

PR

EFL

9899

100

100

100

100

100

890

100

98Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il +

2.0

hal

osulfu

ron +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

8593

9510

099

100

9890

010

010

0Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

Indu

ce (0

.25%

)+1

DA

Y0

020

9510

010

010

00

00

0 conti

nued

AAES RESEARCH SERIES 462

166

Tab

le 4

7.

Con

tinued

.W

eed

contr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Pal

e sm

artw

eed (P

OLL

A)

Her

bici

deR

ate

timin

g6/

26/

46/

96/

277/

238/

209/

26/

26/

48/

209/

2(lb

/A)

(%)

Tric

lopy

r +

0.19

prop

anil

+3.

0In

duce

(0.2

5%)

2-3

LF44

7693

7375

8175

9810

010

010

0Tr

iclo

pyr

+0.

19pr

opan

il +

4.0

Indu

ce (0

.25%

)2-

3 LF

5991

100

8898

100

9110

010

010

010

0Tr

iclo

pyr

+0.

19(p

ropa

nil

+ m

olin

ate)

4.5

2-3

LF65

8395

9094

9986

9910

010

010

0Tr

iclo

pyr

+0.

19(p

ropa

nil

+ m

olin

ate)

6.0

2-3

LF78

9098

9994

9485

100

100

100

100

Tric

lopy

r +

0.25

prop

anil

+3.

0In

duce

(0.2

5%)

3-4

LF0

096

100

100

100

990

010

010

0Tr

iclo

pyr

+0.

25pr

opan

il +

4.0

Indu

ce (0

.25%

)3-

4 LF

00

9810

010

010

099

00

100

100

Tric

lopy

r +

0.19

prop

anil

+3.

0In

duce

(0.2

5%) f

b2-

3 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

7191

100

9399

9998

100

100

100

100

Tric

lopy

r +

0.25

prop

anil

fb4.

03-

4 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

00

9579

100

100

990

010

010

0Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

Indu

ce (0

.25%

)PI

00

3598

100

100

100

00

4586 co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

167

Tab

le 4

7.

Con

tinued

.W

eed

contr

olApp

licat

ion

Bro

adle

af s

ignal

gras

s (B

RA

PP)

Pal

e sm

artw

eed (P

OLL

A)

Her

bici

deR

ate

timin

g6/

26/

46/

96/

277/

238/

209/

26/

26/

48/

209/

2(lb

/A)

(%)

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.38

Indu

ce (0

.25%

)PI

00

4010

010

010

010

00

088

85Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

00

4598

100

100

100

00

7078

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.38

prop

anil

+1.

0In

duce

(0.2

5%)

PI

00

2895

100

100

100

00

8890

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

(pro

panil

+ m

olin

ate)

1.5

PI

00

3096

100

100

100

00

8885

Fen

oxap

rop

fb0.

143-

4 LF

tric

lopy

r +

0.38

(pro

panil

+ m

olin

ate)

1.5

PI

00

3510

010

010

010

00

098

90Fen

oxap

rop

fb0.

152,

4-D

0.95

PI

00

2896

100

100

100

00

100

94Pr

opan

il +

3.0

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF50

8091

8990

9884

9691

8898

Prop

anil

+3.

0Pe

net

rato

r Pl

us

(1 p

t/A) f

b2-

3 LF

prop

anil

+3.

0(a

ciflu

orfe

n +

ben

tazo

n)

0.75

+ Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

6490

9810

010

010

098

100

100

100

100

LSD

(0.0

5)

1410

98

66

69

217

10 conti

nued

AAES RESEARCH SERIES 462

168

Tab

le 4

7.

Con

tinued

.W

eed

contr

olSic

klep

od

M

ornin

gglo

ry s

p.Yel

low

nu

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)(S

EN

OB

)(I

PO

SS

)(C

YPE

S)

Her

bici

deR

ate

timin

g6/

277/

238/

206/

26/

96/

46/

96/

4(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

00

Ben

sulfu

ron +

0.01

9(p

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

bensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

100

100

100

9810

095

100

70B

ensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

bensu

lfuro

n +

0.02

8(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

100

100

100

9510

099

100

58Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ebe

nsu

lfuro

n +

0.03

8In

duce

(0.2

5%)

PR

EFL

100

100

100

9099

9599

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ebe

nsu

lfuro

n +

0.04

7(p

ropa

nil

+ m

olin

ate)

1.5

PO

FL

100

100

100

010

583

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ehal

osulfu

ron +

0.06

3In

duce

(0.2

5%)

PR

EFL

100

100

100

9396

9598

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il +

2.0

hal

osulfu

ron +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

100

100

100

5576

6973

0Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

Indu

ce (0

.25%

)+1

DA

Y10

010

010

00

230

50

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

169

Tab

le 4

7.

Con

tinued

.W

eed

contr

olSic

klep

od

M

ornin

gglo

ry s

p.Yel

low

nu

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)(S

EN

OB

)(I

PO

SS

)(C

YPE

S)

Her

bici

deR

ate

timin

g6/

277/

238/

206/

26/

96/

46/

96/

4(lb

/A)

(%)

Tric

lopy

r +

0.19

prop

anil

+3.

0In

duce

(0.2

5%)

2-3

LF10

010

095

9010

010

010

059

Tric

lopy

r +

0.19

prop

anil

+4.

0In

duce

(0.2

5%)

2-3

LF10

010

010

090

100

100

100

73Tr

iclo

pyr

+0.

19(p

ropa

nil

+ m

olin

ate)

4.5

2-3

LF10

093

9395

100

100

100

70Tr

iclo

pyr

+0.

19(p

ropa

nil

+ m

olin

ate)

6.0

2-3

LF10

010

010

010

010

010

010

074

Tric

lopy

r +

0.25

prop

anil

+3.

0In

duce

(0.2

5%)

3-4

LF10

010

010

00

100

010

00

Tric

lopy

r +

0.25

prop

anil

+4.

0In

duce

(0.2

5%)

3-4

LF10

010

010

00

100

010

00

Tric

lopy

r +

0.19

prop

anil

+3.

0In

duce

(0.2

5%) f

b2-

3 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

9510

010

086

100

100

100

71Tr

iclo

pyr

+0.

25pr

opan

il fb

4.0

3-4

LFtr

iclo

pyr +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

100

100

100

010

00

100

0Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

Indu

ce (0

.25%

)PI2

568

580

100

00

conti

nued

AAES RESEARCH SERIES 462

170

Tab

le 4

7.

Con

tinued

.W

eed

contr

olSic

klep

od

M

ornin

gglo

ry s

p.Yel

low

nu

tsed

geApp

licat

ion

Hem

p s

esban

ia (S

EB

EX

)(S

EN

OB

)(I

PO

SS

)(C

YPE

S)

Her

bici

deR

ate

timin

g6/

277/

238/

206/

26/

96/

46/

96/

4(lb

/A)

(%)

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.38

Indu

ce (0

.25%

)PI

9310

010

00

110

00

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

088

950

100

00

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.38

prop

anil

+1.

0In

duce

(0.2

5%)

PI

095

900

50

00

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

(pro

panil

+ m

olin

ate)

1.5

PI

010

095

010

00

0Fen

oxap

rop

fb0.

143-

4 LF

tric

lopy

r +

0.38

(pro

panil

+ m

olin

ate)

1.5

PI

010

093

013

00

0Fen

oxap

rop

fb0.

152,

4-D

0.95

PI

010

095

013

00

0Pr

opan

il +

3.0

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF10

010

093

8110

095

9645

Prop

anil

+3.

0Pe

net

rato

r Pl

us

(1 p

t/A) f

b2-

3 LF

prop

anil

+3.

0(a

ciflu

orfe

n +

ben

tazo

n)

0.75

+ Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

100

100

100

8610

010

010

063

LSD

(0.0

5)

1511

1715

1414

149

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

171

Tab

le 4

7.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/2

6/4

6/9

6/27

7/23

8/20

9/2

yiel

d(lb

/A)

(%)

(lb/A

)

Untr

eate

d ch

eck

00

00

00

062

55B

ensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

bensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

68

00

00

063

00B

ensu

lfuro

n +

0.01

9(p

ropa

nil

+ m

olin

ate)

fb4.

52-

3 LF

bensu

lfuro

n +

0.02

8(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

00

03

00

063

90Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ebe

nsu

lfuro

n +

0.03

8In

duce

(0.2

5%)

PR

EFL

00

00

00

066

15Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ebe

nsu

lfuro

n +

0.04

7(p

ropa

nil

+ m

olin

ate)

1.5

PO

FL

00

00

00

068

85Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Ehal

osulfu

ron +

0.06

3In

duce

(0.2

5%)

PR

EFL

09

09

53

364

35Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.18

8D

PR

Epr

opan

il +

2.0

hal

osulfu

ron +

0.06

3Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

00

03

03

064

35Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

Indu

ce (0

.25%

)+1

DA

Y0

00

414

815

6075

Tric

lopy

r +

0.19

prop

anil

+3.

0In

duce

(0.2

5%)

2-3

LF8

101

30

00

6660 co

nti

nued

AAES RESEARCH SERIES 462

172

Tab

le 4

7.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/2

6/4

6/9

6/27

7/23

8/20

9/2

yiel

d(lb

/A)

(%)

(lb/A

)

Tric

lopy

r +

0.19

prop

anil

+4.

0In

duce

(0.2

5%)

2-3

LF16

194

63

31

6795

Tric

lopy

r +

0.19

(pro

panil

+ m

olin

ate)

4.5

2-3

LF8

00

00

00

6525

Tric

lopy

r +

0.19

(pro

panil

+ m

olin

ate)

6.0

2-3

LF11

50

00

00

7200

Tric

lopy

r +

0.25

prop

anil

+3.

0In

duce

(0.2

5%)

3-4

LF0

010

64

53

5400

Tric

lopy

r +

0.25

prop

anil

+4.

0In

duce

(0.2

5%)

3-4

LF0

09

115

53

7155

Tric

lopy

r +

0.19

prop

anil

+3.

0In

duce

(0.2

5%) f

b2-

3 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

1010

115

05

056

25Tr

iclo

pyr

+0.

25pr

opan

il fb

4.0

3-4

LFtr

iclo

pyr +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

00

40

00

067

50Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

Indu

ce (0

.25%

)PI

00

038

2014

1466

60Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.38

Indu

ce (0

.25%

)PI

00

035

1411

1866

60 conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

173

Tab

le 4

7.

Con

tinued

.App

licat

ion

Ric

e in

jury

Ric

eH

erbi

cide

Rat

etim

ing

6/2

6/4

6/9

6/27

7/23

8/20

9/2

yiel

d(lb

/A)

(%)

(lb/A

)

Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

prop

anil

+1.

0In

duce

(0.2

5%)

PI

00

041

2113

1964

80Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.38

prop

anil

+1.

0In

duce

(0.2

5%)

PI

00

030

1010

1565

25Fen

oxap

rop

fb0.

153-

4 LF

tric

lopy

r +

0.25

(pro

panil

+ m

olin

ate)

1.5

PI

00

054

2616

2658

05Fen

oxap

rop

fb0.

143-

4 LF

tric

lopy

r +

0.38

(pro

panil

+ m

olin

ate)

1.5

PI

00

053

3113

2362

10Fen

oxap

rop

fb0.

152,

4-D

0.95

PI

00

031

1010

1159

85Pr

opan

il +

3.0

Penet

rato

r Pl

us

(1 p

t/A)

2-3

LF0

30

00

00

6480

Prop

anil

+3.

0Pe

net

rato

r Pl

us

(1 p

t/A) f

b2-

3 LF

prop

anil

+3.

0(a

ciflu

orfe

n +

ben

tazo

n)

0.75

+ Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

1010

10

00

061

20

LSD

(0.0

5)

58

217

106

7N

S

AAES RESEARCH SERIES 462

174

Tab

le 4

8. Yello

w n

uts

edge c

ontr

ol i

n ri

ce, L

odge C

orn

er.

Tab

le 4

8. Yello

w n

uts

edge c

ontr

ol i

n ri

ce, L

odge C

orn

er.

Tab

le 4

8. Yello

w n

uts

edge c

ontr

ol i

n ri

ce, L

odge C

orn

er.

Tab

le 4

8. Yello

w n

uts

edge c

ontr

ol i

n ri

ce, L

odge C

orn

er.

Tab

le 4

8. Yello

w n

uts

edge c

ontr

ol i

n ri

ce, L

odge C

orn

er.

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

TEST

INFO

RM

AT

ION

Loca

tion

.............................................................................L

odge

Cor

ner

Plan

ting

dat

e.................................................................M

ay 7

, 1997

Expe

rimen

tal D

esig

n /

repl

icat

ions

...............................................

RCB /

4Har

vest

dat

e..............................................................................

N/A

Plot si

ze........................................................................

10 ft

by 20 ft

Crop

/Var

iety

...........................................................R

ice

/ Kay

bonn

etRo

w w

idth

/ N

umbe

r of r

ows pe

r plo

t..................................

7.5

in / 1

6 ro

ws

Dat

e of

Flo

od.............................................................

June

11, 1

997

Soil t

ype

.......................................S

ilt lo

am (2%

san

d, 8

6%

silt

, 12%

cla

y)%

OM

/ p

H..........................................................................

1.2

/ 5

.2

Com

men

ts: D

PR

E =

del

ayed

pre

emer

gence

; 2-3

LF =

2-3

leaf

ric

e; P

RE

FL

= pre

flood

; PO

FL

= pos

tflo

od.

App

licat

ion typ

eD

PR

E2-

3 LF

PR

EFL

PO

FL

Dat

e ap

plie

dM

ay 7

, 199

7M

ay 2

9, 1

997

June

6, 1

997

June

13, 1

997

Tim

e11

:30

am1:

30 p

m11

:50

am9:

45 a

mAir/S

oil t

empe

ratu

re (F

)71

/ 6

877

/ 6

579

/ 6

778

/ 6

5R

elat

ive

hum

idity

(%)

4233

3075

Win

d (m

ph, d

irec

tion)

3.5

43.

56

Wea

ther

mos

tly

clea

rcl

ear

part

ly c

loudy

clou

dySoi

l moi

sture

moi

stda

mp

sogg

yw

etC

rop

stag

e/H

eigh

tN/

A2-

3 lf

/ 3"

3 lf

/ 4"

4 lf

/ 6"

Spr

ayer

type

/mph

BkP

kCO

2 / 3

Noz

zle

type/

Siz

eD

riftg

uar

d /

1100

15B

oom

ht /

# N

oz /

Spa

cing

(in.)

18 /

6 /

20

20 /

6 /

20

20 /

6 /

20

20 /

6 /

20

Gpa

/ P

si10

/ 2

210

/ 2

310

/ 2

710

/ 2

2W

eed s

pec

ies

(pop

ula

tion

):(h

eigh

t /

# le

aves

)C

YPE

S (1

to

7/ft

2 )2

lf /

3"4

lf /

9"8

lf /

10"

2 lf

/ 3

"E

CH

CG

(0; D

PR

E c

ontr

ol)

N/A

N/A

N/A

N/A

IPO

SS (<

1/ft

2 )2

lf /

3"N/

AN/

A2

lf /

3"C

oncl

usi

ons:

Hal

osulfu

ron c

ontinues

to

prov

ide

exce

llent ye

llow

nuts

edge

con

trol

reg

ardl

ess

of tim

ing

of a

pplic

atio

n o

r w

ater

man

agem

ent. T

he

pref

lood

stan

dard

tre

atm

ents

of b

ensu

lfuro

n w

ere

also

effe

ctiv

e.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

175

Tab

le 4

8.

Wee

d co

ntr

olYel

low

nu

tsed

geB

arnya

rdgr

ass

Sm

artw

eed

sp.

App

licat

ion

(CY

PE

S)

(EC

HC

G)

(IPO

SS

)R

ice

inju

ryH

erbi

cide

Rat

etim

ing

5/29

6/5

7/2

7/18

5/29

6/5

5/29

6/5

7/2

7/18

(lb/A

)(%

)

Untr

eate

d ch

eck

00

00

00

00

00

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.04

7In

duce

(0.2

5%)

2-3

LF0

4010

010

010

010

00

38

6Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.06

3In

duce

(0.2

5%)

2-3

LF0

4398

100

100

100

03

96

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.06

3In

duce

(0.2

5)PR

EFL

04

9610

010

010

00

08

3Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.09

4In

duce

(0.2

5%)

PR

EFL

00

9810

010

010

00

010

11Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.04

7In

duce

(0.2

5%)

PO

FL

00

9410

010

010

00

023

10Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.06

3In

duce

(0.2

5%)

PO

FL

00

9410

010

010

00

018

5Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.09

4In

duce

(0.2

5%)

PO

FL

00

9010

010

010

00

016

16

conti

nued

AAES RESEARCH SERIES 462

176

Tab

le 4

8. C

onti

nued

.W

eed

contr

olYel

low

nu

tsed

geB

arnya

rdgr

ass

Sm

artw

eed

sp.

App

licat

ion

(CY

PE

S)

(EC

HC

G)

(IPO

SS

)R

ice

inju

ryH

erbi

cide

Rat

etim

ing

5/29

6/5

7/2

7/18

5/29

6/5

5/29

6/5

7/2

7/18

(lb/A

)(%

)Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.06

3pr

opan

il (S

tam

M4)

3.0

PR

EFL

00

100

100

100

100

00

40

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.06

3pr

opan

il (S

upe

r3.

0W

ham

+ P

enet

rato

rPl

us

(1 p

t/A)

PR

EFL

00

100

100

100

100

00

1613

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Ehal

osulfu

ron +

0.06

3(p

ropa

nil

+ m

olin

ate)

4.5

PR

EFL

00

100

100

100

100

00

138

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Epr

opan

il (S

tam

M4)

+3.

0be

nsu

lfuro

n0.

038

PR

EFL

00

9310

010

010

00

010

4Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

Epr

opan

il (S

upe

r3.

0W

ham

) + b

ensu

lfuro

n0.

038

+ Pe

net

rato

r Pl

us

(1 p

t/A)

PR

EFL

00

8690

100

100

00

63

Pendi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

E(p

ropa

nil

+ m

olin

ate)

4.5

+ be

nsu

lfuro

n0.

038

PR

EFL

00

9810

010

010

00

06

0Pe

ndi

met

hal

in +

1.0

quin

clor

ac fb

0.25

DPR

E(p

ropa

nil

+ m

olin

ate)

1.5

+ be

nsu

lfuro

n0.

047

PO

FL

00

5064

100

100

00

60

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

177

Tab

le 4

8. C

onti

nued

.W

eed

contr

olYel

low

nu

tsed

geB

arnya

rdgr

ass

Sm

artw

eed

sp.

App

licat

ion

(CY

PE

S)

(EC

HC

G)

(IPO

SS

)R

ice

inju

ryH

erbi

cide

Rat

etim

ing

5/29

6/5

7/2

7/18

5/29

6/5

5/29

6/5

7/2

7/18

(lb/A

)(%

)

(Pro

panil

+ m

olin

ate)

+4.

5be

nsu

lfuro

n fb

0.01

92-

3 LF

(pro

panil

+ m

olin

ate)

4.5

+ be

nsu

lfuro

n0.

019

PR

EFL

048

9998

100

100

00

135

(Pro

panil

+ m

olin

ate)

+4.

5hal

osulfu

ron fb

0.03

12-

3 LF

(pro

panil

+ m

olin

ate)

4.5

+ hal

osulfu

ron

0.03

1PR

EFL

060

100

100

100

100

06

153

Pendi

met

hal

in +

1.0

quin

clor

ac0.

25D

PR

EF84

26-2

+0.

02A

G-9

8 (0

.25%

)PR

EFL

00

00

100

100

00

00

Clo

maz

one

(3M

E) +

0.4

sulfe

ntr

azon

e0.

2D

PR

E93

8893

100

100

100

2520

2616

LSD

(0.0

5)

110

106

11

25

NS

11

AAES RESEARCH SERIES 462

178

Tab

le 4

9.

Pot

enti

al s

yner

gist

ic e

ffec

ts o

f her

bici

des

and

inse

ctic

ides

wit

h p

ropa

nil (s

even

exp

erim

ents

), Fay

ette

ville

.

TEST INFO

RM

ATIO

N

Loca

tion

............................................................................

Fay

ette

ville

Plan

ting

date

...........................................................

May

23,

199

7E

xper

imen

tal D

esig

n /

rep

licat

ions

..........................

Fact

oria

l on a

RC

B /

4H

arve

st d

ate

..........................................................................

N/A

Plo

t si

ze..................................................................

3.3

ft b

y 6.

6 ft

Cro

p/Var

iety

.........................................................

Ric

e/K

aybo

nnet

Row

wid

th /

Num

ber of

row

s pe

r pl

ot...................................10

in /

3 row

sD

ate

of F

lood

................................................

.........................

N/A

Soi

l typ

e............................

Talo

ka s

ilt lo

am (2

7% s

and,

64%

silt

, 9%

cla

y)%

OM

/ p

H..............

..................................................

......

1.1

/ 5.

6

Com

men

ts:

On

e ro

w o

f re

sist

ant

bar

nya

rdgr

ass,

on

e ro

w o

f su

scep

tible

bar

nya

rdgr

ass,

an

d o

ne

row

of ri

ce w

ere

pla

nte

d in

eac

h p

lot.

EPO

ST =

ear

lypos

tem

erge

nce

.App

licat

ion typ

eE

PO

ST

Dat

e ap

plie

dJu

ne

11, 1

997

Tim

e3:

00 p

mIn

corp

orat

ion e

quip

men

tN/

AAir/S

oil t

empe

ratu

re (F

)85

/ 8

0R

elat

ive

hum

idity

(%)

85W

ind

(mph

, direc

tion)

3W

eath

er50

% c

loudy

Soi

l moi

sture

moi

stC

rop

stag

e/H

eigh

t2-

3 lf

/ 1.

5"Spr

ayer

type

/mph

BkP

kCO

2 /

3.0

Noz

zle

type/

Siz

e80

04-E

Boo

m h

t / #

Noz

18 /

1G

pa /

Psi

20 /

20

Wee

d s

pec

ies

no.

lea

ves

EC

HC

G2

Con

clusi

ons:

Tes

t 1: R

ice

inju

ry o

ccu

rred

(>20%

) when

anilo

phos

at

2.7

lb/A

was

applie

d. G

ood c

ontr

ol w

as a

chie

ved w

ith s

ever

al r

ate

com

bin

atio

ns

with

min

imal

ric

e in

jury

. Tes

t 2: G

ood

barn

yard

gras

s co

ntr

ol w

as a

chie

ved

with

all

rate

s of

car

bary

l in c

ombi

nat

ion w

ith p

ropa

nil

at $

3, 0

lb/A

, alth

ough

som

e ri

ce in

jury

occu

rred

. T

est

3: A

ll ra

te c

ombin

atio

ns

of p

ropan

il an

d m

olin

ate

gave

ver

y go

od c

ontr

ol (>85%

) at

7 D

AT, bu

t re

grow

th o

ccu

rred

bec

ause

of th

e la

ck o

f a

per

man

ent

flood

. T

est

4: T

he

hig

her

rat

e co

mbin

atio

ns

of p

ropan

il an

d p

endim

ethal

in w

ere

nee

ded

to

obta

in a

ccep

table

con

trol

of re

sist

ant

and s

usc

eptibl

eba

rnya

rdgr

ass,

and

little

inju

ry o

ccurr

ed.

Tes

t 5: G

ood

contr

ol w

as o

btai

ned

with p

ropa

nil

at $

3,0

lb/A

in c

ombi

nat

ion w

ith a

ll ra

tes

of p

iper

ophos

. Tes

t 6: H

igh

rate

com

bin

atio

ns

of p

ropan

il an

d q

uin

clor

ac w

ere

requ

ired

for

adeq

uat

e co

ntr

ol o

f bar

nya

rdgr

ass,

bu

t no

inju

ry o

ccu

rred

with a

ny

com

bin

atio

n.

Tes

t 7: Fai

rco

ntr

ol w

as o

btai

ned

with

hig

h rat

e co

mbi

nat

ions

of p

ropa

nil

and

thio

benca

rb w

ith li

ttle

inju

ry.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

179

Tab

le 4

9.

Tes

t 1.

Pro

panil p

lus

anilop

hos

.B

arnya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

Anilo

phos

0.1

00

00

00

Anilo

phos

0.3

419

316

00

Anilo

phos

0.9

558

760

00

Anilo

phos

2.7

4591

4395

024

Prop

anil

0.74

3232

3232

00

Prop

anil

+ an

iloph

os0.

74 +

0.1

4439

4141

00

Prop

anil

+ an

iloph

os0.

74 +

0.3

7171

6971

00

Prop

anil

+ an

iloph

os0.

74 +

0.9

6671

6566

00

Prop

anil

+ an

iloph

os0.

74 +

2.7

8697

8397

334

Prop

anil

1.5

6958

6964

00

Prop

anil

+ an

iloph

os1.

5 +

0.1

7574

7173

00

Prop

anil

+ an

iloph

os1.

5 +

0.3

8383

7876

01

Prop

anil

+ an

iloph

os1.

5 +

0.9

8184

7985

00

Prop

anil

+ an

iloph

os1.

5 +

2.7

8495

8395

428

Prop

anil

3.0

8578

8275

22

Prop

anil

+ an

iloph

os3.

0 +

0.1

8578

8481

10

Prop

anil

+ an

iloph

os3.

0 +

0.3

9184

9385

10

Prop

anil

+ an

iloph

os3.

0 +

0.9

9695

9495

51

Prop

anil

+ an

iloph

os3.

0 +

2.7

9695

9695

520

Prop

anil

6.0

9791

9895

50

Prop

anil

+ an

iloph

os6.

0 +

0.1

9793

9794

40

Prop

anil

+ an

iloph

os6.

0 +

0.3

9996

9896

50

Prop

anil

+ an

iloph

os6.

0 +

0.9

9897

9897

51

Prop

anil

+ an

iloph

os6.

0 +

2.7

100

9810

098

52

LSD

(0.0

5)

1321

1421

211

conti

nued

AAES RESEARCH SERIES 462

180

Tab

le 4

9.

Con

tinued

. Tes

t 2.

Pro

panil p

lus

carb

aryl

.B

arnya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

Car

bary

l0.

090

00

00

0C

arba

ryl

0.3

33

55

00

Car

bary

l0.

93

33

33

3C

arba

ryl

2.7

1919

2119

33

Prop

anil

0.74

7368

7569

54

Prop

anil

+ ca

rbar

yl0.

74 +

0.0

974

6871

665

5Pr

opan

il +

carb

aryl

0.74

+ 0

.374

6874

666

5Pr

opan

il +

carb

aryl

0.74

+ 0

.983

7083

718

5Pr

opan

il +

carb

aryl

0.74

+ 2

.777

7073

678

8Pr

opan

il1.

581

7180

715

5Pr

opan

il +

carb

aryl

1.5

+ 0.

0974

7476

715

5Pr

opan

il +

carb

aryl

1.5

+ 0.

388

7591

8111

8Pr

opan

il +

carb

aryl

1.5

+ 0.

984

7479

7810

6Pr

opan

il +

carb

aryl

1.5

+ 2.

784

7985

8113

10Pr

opan

il3.

089

8085

798

6Pr

opan

il +

carb

aryl

3.0

+ 0.

0989

8390

858

6Pr

opan

il +

carb

aryl

3.0

+ 0.

397

8497

8518

14Pr

opan

il +

carb

aryl

3.0

+ 0.

989

8489

8516

11Pr

opan

il +

carb

aryl

3.0

+ 2.

797

8697

8919

13Pr

opan

il6.

094

8494

8514

13Pr

opan

il +

carb

aryl

6.0

+ 0.

0995

8396

8513

10Pr

opan

il +

carb

aryl

6.0

+ 0.

397

9097

9329

28Pr

opan

il +

carb

aryl

6.0

+ 0.

997

8897

9121

11Pr

opan

il +

carb

aryl

6.0

+ 2.

797

8697

9139

33

LSD

(0.0

5)

1313

1313

56

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

181

Tab

le 4

9.

Con

tinued

. Tes

t 3.

Pro

panil

plus

mol

inat

e.B

arnya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

460

460

00

Mol

inat

e0.

329

340

30

0M

olin

ate

1.0

9143

8852

00

Mol

inat

e3.

095

5080

580

1M

olin

ate

8.8

9166

8669

10

Prop

anil

0.74

9170

9175

00

Prop

anil

+ m

olin

ate

0.74

+ 0

.399

7410

078

00

Prop

anil

+ m

olin

ate

0.74

+ 1

.085

6186

691

1Pr

opan

il +

mol

inat

e0.

74 +

3.0

100

7110

078

14

Prop

anil

+ m

olin

ate

0.74

+ 8

.810

083

100

8510

3Pr

opan

il +

mol

inat

e1.

578

5695

714

3Pr

opan

il +

mol

inat

e1.

5 +

0.3

9873

100

784

4Pr

opan

il +

mol

inat

e1.

5 +

1.0

9773

100

793

3Pr

opan

il +

mol

inat

e1.

5 +

3.0

100

7510

080

54

Prop

anil

+ m

olin

ate

1.5

+ 8.

810

074

100

798

8Pr

opan

il3.

098

7499

814

4Pr

opan

il +

mol

inat

e3.

0 +

0.3

9773

100

795

5Pr

opan

il +

mol

inat

e3.

0 +

1.0

100

7510

079

43

Prop

anil

+ m

olin

ate

3.0

+ 3.

010

078

100

8411

5Pr

opan

il +

mol

inat

e3.

0 +

8.8

100

8310

088

148

Prop

anil

6.0

100

7910

085

1610

Prop

anil

+ m

olin

ate

6.0

+ 0.

310

079

100

8515

8Pr

opan

il +

mol

inat

e6.

0 +

1.0

100

8110

084

149

Prop

anil

+ m

olin

ate

6.0

+ 3.

010

083

100

9320

10Pr

opan

il +

mol

inat

e6.

0 +

8.8

100

8510

088

2411

LSD

(0.0

5)

2417

2212

74

conti

nued

AAES RESEARCH SERIES 462

182

Tab

le 4

9.

Con

tinued

. Tes

t 4.

Pro

panil

plus

pendi

met

hal

in.

Bar

nya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

Pendi

met

hal

in0.

10

00

00

0Pe

ndi

met

hal

in0.

30

00

00

0Pe

ndi

met

hal

in0.

90

200

180

0Pe

ndi

met

hal

in2.

716

2416

240

0Pr

opan

il0.

7443

4150

480

0Pr

opan

il +

pendi

met

hal

in0.

74 +

0.1

5858

6058

00

Prop

anil

+ pe

ndi

met

hal

in0.

74 +

0.3

6565

6563

00

Prop

anil

+ pe

ndi

met

hal

in0.

74 +

0.9

1924

1924

00

Prop

anil

+ pe

ndi

met

hal

in0.

74 +

2.7

7084

6985

00

Prop

anil

1.5

6560

6963

00

Prop

anil

+ pe

ndi

met

hal

in1.

5 +

0.1

6156

6561

00

Prop

anil

+ pe

ndi

met

hal

in1.

5 +

0.3

7473

7673

00

Prop

anil

+ pe

ndi

met

hal

in1.

5 +

0.9

6974

7176

00

Prop

anil

+ pe

ndi

met

hal

in1.

5 +

2.7

7686

7888

00

Prop

anil

3.0

6456

6964

00

Prop

anil

+ pe

ndi

met

hal

in3.

0 +

0.1

7064

7571

11

Prop

anil

+ pe

ndi

met

hal

in3.

0 +

0.3

7975

7875

00

Prop

anil

+ pe

ndi

met

hal

in3.

0 +

0.9

7577

7880

00

Prop

anil

+ pe

ndi

met

hal

in3.

0 +

2.7

7989

7888

44

Prop

anil

6.0

7869

8476

55

Prop

anil

+ pe

ndi

met

hal

in6.

0 +

0.1

7979

8383

43

Prop

anil

+ pe

ndi

met

hal

in6.

0 +

0.3

8486

8989

54

Prop

anil

+ pe

ndi

met

hal

in6.

0 +

0.9

9089

9193

43

Prop

anil

+ pe

ndi

met

hal

in6.

0 +

2.7

9697

9497

54

LSD

(0.0

5)

1825

1724

12

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

183

Tab

le 4

9.

Con

tinued

. Tes

t 5.

Pro

panil p

lus

pipe

roph

os.

Bar

nya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

Pip

erop

hos

0.1

00

10

00

Pip

erop

hos

0.3

44

1110

00

Pip

erop

hos

0.9

49

1320

00

Pip

erop

hos

2.7

778

1778

017

Prop

anil

0.74

6961

7568

00

Prop

anil

+ pi

pero

phos

0.74

+ 0

.170

5673

550

0Pr

opan

il +

pipe

roph

os0.

74 +

0.3

7671

7873

01

Prop

anil

+ pi

pero

phos

0.74

+ 0

.980

8083

830

0Pr

opan

il +

pipe

roph

os0.

74 +

2.7

7276

7075

111

Prop

anil

1.5

7671

8075

00

Prop

anil

+ pi

pero

phos

1.5

+ 0.

179

7178

680

0Pr

opan

il +

pipe

roph

os1.

5 +

0.3

7368

7568

22

Prop

anil

+ pi

pero

phos

1.5

+ 0.

975

7673

711

1Pr

opan

il +

pipe

roph

os1.

5 +

2.7

9197

9095

520

Prop

anil

3.0

9085

8683

31

Prop

anil

+ pi

pero

phos

3.0

+ 0.

189

8688

881

1Pr

opan

il +

pipe

roph

os3.

0 +

0.3

8986

8885

55

Prop

anil

+ pi

pero

phos

3.0

+ 0.

994

9590

914

4Pr

opan

il +

pipe

roph

os3.

0 +

2.7

9494

9393

56

Prop

anil

6.0

9688

9688

54

Prop

anil

+ pi

pero

phos

6.0

+ 0.

197

9496

965

3Pr

opan

il +

pipe

roph

os6.

0 +

0.3

9797

9797

54

Prop

anil

+ pi

pero

phos

6.0

+ 0.

997

9797

975

5Pr

opan

il +

pipe

roph

os6.

0 +

2.7

9797

9795

59

LSD

(0.0

5)

710

712

27

conti

nued

AAES RESEARCH SERIES 462

184

Tab

le 4

9.

Con

tinued

. Tes

t 6.

Pro

panil p

lus

quin

clor

ac.

Bar

nya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

00

00

00

Quin

clor

ac0.

025

1915

2016

00

Quin

clor

ac0.

074

3024

2625

00

Quin

clor

ac0.

2239

3343

380

0Q

uin

clor

ac0.

6731

2835

300

0Pr

opan

il0.

7415

1315

150

0Pr

opan

il +

quin

clor

ac0.

74 +

0.0

2540

3346

400

0Pr

opan

il +

quin

clor

ac0.

74 +

0.0

7459

5158

530

0Pr

opan

il +

quin

clor

ac0.

74 +

0.2

268

6069

610

0Pr

opan

il +

quin

clor

ac0.

74 +

0.6

770

6373

650

0Pr

opan

il1.

549

4553

490

0Pr

opan

il +

quin

clor

ac1.

5 +

0.02

563

5668

630

0Pr

opan

il +

quin

clor

ac1.

5 +

0.07

470

6470

650

0Pr

opan

il +

quin

clor

ac1.

5 +

0.22

4843

4843

00

Prop

anil

+ qu

incl

orac

1.5

+ 0.

6768

6168

630

0Pr

opan

il3.

065

5976

660

0Pr

opan

il +

quin

clor

ac3.

0 +

0.02

570

6576

680

0Pr

opan

il +

quin

clor

ac3.

0 +

0.07

471

6575

690

0Pr

opan

il +

quin

clor

ac3.

0 +

0.22

7873

8377

00

Prop

anil

+ qu

incl

orac

3.0

+ 0.

6783

7686

810

0Pr

opan

il6.

078

7080

700

0Pr

opan

il +

quin

clor

ac6.

0 +

0.02

575

7180

750

0Pr

opan

il +

quin

clor

ac6.

0 +

0.07

486

8190

860

0Pr

opan

il +

quin

clor

ac6.

0 +

0.22

8278

8781

00

Prop

anil

+ qu

incl

orac

6.0

+ 0.

6795

9495

940

0

LSD

(0.0

5)

2321

2223

NS

NS

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

185

Tab

le 4

9.

Con

tinued

. Tes

t 7.

Pro

panil p

lus

thio

benca

rb.

Bar

nya

rdgr

ass

(EC

HC

G) c

ontr

olR

esis

tant

Susc

eptibl

eR

ice

inju

ryTr

eatm

ent

Rat

e6/

177/

26/

177/

26/

177/

2(lb

/A)

(%)

Untr

eate

d ch

eck

2320

2320

00

Thio

benca

rb0.

326

2628

281

1Th

iobe

nca

rb1.

039

3948

480

0Th

iobe

nca

rb3.

066

6964

713

3Th

iobe

nca

rb8.

865

7371

781

1Pr

opan

il0.

7474

7976

813

3Pr

opan

il +

thio

benca

rb0.

74 +

0.3

8788

8888

55

Prop

anil

+ th

iobe

nca

rb0.

74 +

1.0

7776

8080

33

Prop

anil

+ th

iobe

nca

rb0.

74 +

3.0

6971

7675

44

Prop

anil

+ th

iobe

nca

rb0.

74 +

8.8

4445

5151

33

Prop

anil

+ th

iobe

nca

rb1.

573

7671

793

3Pr

opan

il +

thio

benca

rb1.

5 +

0.3

7878

8183

55

Prop

anil

+ th

iobe

nca

rb1.

5 +

1.0

4969

4970

11

Prop

anil

+ th

iobe

nca

rb1.

5 +

3.0

7876

8183

43

Prop

anil

+ th

iobe

nca

rb1.

5 +

8.8

7178

7680

11

Prop

anil

3.0

3638

4040

11

Prop

anil

+ th

iobe

nca

rb3.

0 +

0.3

8686

8989

55

Prop

anil

+ th

iobe

nca

rb3.

0 +

1.0

6979

7481

33

Prop

anil

+ th

iobe

nca

rb3.

0 +

3.0

7479

7880

33

Prop

anil

+ th

iobe

nca

rb3.

0 +

8.8

7778

8282

44

Prop

anil

6.0

8381

8381

34

Prop

anil

+ th

iobe

nca

rb6.

0 +

0.3

7369

7870

33

Prop

anil

+ th

iobe

nca

rb6.

0 +

1.0

7471

8075

55

Prop

anil

+ th

iobe

nca

rb6.

0 +

3.0

6676

7382

32

Prop

anil

+ th

iobe

nca

rb6.

0 +

8.8

7984

8186

34

LSD

(0.0

5)

3233

3233

33

AAES RESEARCH SERIES 462

186

App

endi

x Tab

le 1

. Com

mon

and

trad

e nam

es, f

orm

ula

tion

(pou

nds

of ac

tive

ingr

edie

nt

or a

cid

equiv

alen

t pe

r ga

llon),

spon

sori

ng

com

pan

ies,

and c

hem

ical

nam

es o

f her

bici

des

.z

Com

mon

nam

eTr

ade

nam

e (fo

rmula

tion

y )C

ompa

ny

Chem

ical

nam

e

AC

-166

,746

— (4 C

S)

Cya

nam

id—

AC

-166

-747

— (4 C

S)

Cya

nam

id—

AC

-166

-773

— (4 C

S)

Cya

nam

id—

AC

-513

,981

— (4 C

S)

Cya

nam

id—

AC

-513

,982

— (4 C

S)

Cya

nam

id—

acifl

uor

fen +

ben

tazo

nSto

rm (4

SL)

BA

SF

5-[2

-chlo

ro-4

-(tr

ifluor

omet

hyl

)phen

oxy]

-2-n

itrob

enzo

ic a

cid;

see

ben

tazo

nAct

ivat

or 9

0 (s

urf

acta

nt)

—U

AP

—Agr

i-D

ex (c

rop

oil)

Agr

i-D

exH

elen

a—

anilo

phos

or

anilo

fos

— (2

.5 E

C)

Agr

Evo

S-[2-

[(4-c

hlo

roph

enyl

)(1-m

ethyl

ethyl

)am

ino]

-2-

oxoe

thyl

] O,O

-dim

ethyl

phos

phor

odith

ioat

ebe

nsu

lfuro

nLo

nda

x (6

0 D

F)

DuPo

nt

2-[[[

[[(4,

6-di

met

hox

y-2-

pyrim

idin

yl)a

min

o]ca

rbon

yl]

amin

o]su

lfonyl

]met

hyl

]ben

zoic

aci

dbe

nta

zon

Bas

agra

n (4

SL)

BA

SF

3-(1

-met

hyl

ethyl

)-(1

H)-2,

1,3-

benzo

thia

diaz

in-4

(3H

)-on

e 2,

2-di

oxid

eca

rbar

yl (i

nse

ctic

ide)

Sev

in (4

F)

Rhon

e-Pou

lenc

1-nap

hth

alen

yl m

ethyl

carb

amat

ecl

ethod

imSel

ect

(2 E

C)

Val

ent

(E,E

)-(+

)-2-

[1-[[(3

-chlo

ro-2

-pro

penyl

)oxy

]imin

o] p

ropy

l]-5[

2-(e

thyl

thio

)pro

pyl]-

3-hyd

roxy

-2-c

yclo

hex

en-1

-one

clom

azon

eC

omm

and

(4 E

C; 3

ME

; 3 G

)FM

C2-

[(2-c

hlo

roph

enyl

)met

hyl

]-4,

4-di

met

hyl

-3-iso

xazo

lidin

one

F-8

426

(car

fentr

azon

e)Shar

k (4

0 D

F; -

2 fo

rmula

tion)

FMC

N-[2,

4-di

chlo

ro-5

-(4-

(difl

uor

omet

hyl

)-4,

5-di

hyd

ro-3

-m

ethyl

-5-o

xo-1

H-1

,2,4

-triaz

ol)-1-

ylph

enyl

]-m

ethan

esulfo

nam

ide

fenox

apro

pW

hip

1E

C; W

hip

360

(0.5

7 E

C)

Agr

Evo

(+)-2-[4-[(6

-chlo

ro-2

-ben

zoxa

zoly

l)oxy

]phen

oxy]

Bu

gle

(0.6

7 E

C)

pro

panoi

c ac

idfip

ronil

(inse

ctic

ide)

[EX

P 80

698A

]R

hon

e-Po

ule

nc

(+)-5-

amin

o-1-

[2,6

-dic

hlo

ro-4

-(tr

ifluor

omet

hyl

)ph

enyl

]-4-

[(triflu

orom

ethyl

)sulfi

nyl

]-1H

-pyr

azol

e-3-

carb

onitr

ileflu

azifo

p-P

Fusi

lade

(2 E

C)

Zen

eca

(R)-2-

[4-[[5

-(tr

ifluor

omet

hyl

)-2-

pyridi

nyl

]oxy

] phen

oxy]

prop

anoi

c ac

id

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

187

App

endi

x Tab

le 1

. C

onti

nued

.

Com

mon

nam

eTr

ade

nam

e (fo

rmula

tion

y )C

ompa

ny

Chem

ical

nam

e

fluaz

ifop

+ fe

nox

apro

pFusi

on (2

.66

EC

)Zen

eca

(see

indi

vidu

al c

ompo

nen

ts)

glufo

sinat

eLi

bert

y (1

.67

EC

)A

grE

vo2-

amin

o-4-

(hyd

roxy

met

hyl

phos

phin

yl)b

uta

noi

c ac

id

glyp

hos

ate

Rou

ndu

p U

ltra

(4 S

L)M

onsa

nto

N-(ph

osph

onom

ethyl

)gly

cine

hal

osulfu

ron

Perm

it (7

5 D

F)

Mon

santo

3-ch

loro

-5-[[[[

(4,6

-dim

ethox

y-2-

pyrim

idin

yl)a

min

o]ca

rbon

yl]a

min

o]-s

ulfo

nyl

]-1-

met

hyl

-1H

-pyr

azol

e-4-

carb

oxyl

ic a

cid

HO

E-1

2200

6—

(0.8

3 E

C)

Agr

Evo

—(W

hip

saf

ener

)In

duce

(surf

acta

nt)

Indu

ceH

elen

a—

imaz

ethap

yrPu

rsuit (2

EC

, 70

WG

)C

yanam

id2-

[4,5

-dih

ydro

-4-m

ethyl

-4-(1-

met

hyl

ethyl

)-5-

oxo-

1H-im

idaz

ol-2

-yl]-

5-et

hyl

-3-p

yrid

inec

arbo

xylic

aci

dK

inet

ic (s

urf

acta

nt)

Kin

etic

Hel

ena

—LG

C-4

0863

— (0

.083 E

C)

LG C

hem

ical

benzo

phen

one-

0-[2

,6-b

is[(4

,6-d

imet

hox

y-2-

(Kor

ea)

pyrim

idin

yl)o

xy]b

enxo

yl]o

xim

em

etol

achlo

rD

ual

(8 E

C)

Nov

artis

2-ch

loro

-N-(2-

ethyl

-6-m

ethyl

phen

yl)-N

-(2-

met

hox

y-1-

met

hyl

ethyl

)ace

tam

ide

mol

inat

eO

rdra

m (1

5 G

)Zen

eca

S-e

thyl

hex

ahyd

ro-1

H-a

zepi

ne-

1-ca

rbot

hio

ate

pendi

met

hal

inPro

wl (

3.3

EC

); Pen

tago

n (6

0 D

F)

Cya

nam

idN

-(1-

ethyl

prop

yl)-3,

4-di

met

hyl

-2,6

-di

nitr

oben

zenam

ine

Penet

rato

r Pl

us

(cro

pPe

net

rato

r Pl

us

Hel

ena

—oi

l / s

urfac

tant)

pipe

roph

os—

(4, 1

7 E

C)

Nov

artis

S-[2-

(2-m

ethyl

-1-p

iper

idin

yl)-2-

oxoe

thyl

] O,O

-di

prop

yl p

hos

phor

odith

ioat

epr

opan

ilSta

m 4

M (4

EC

); Sta

m 8

0DF;

Roh

m &

Haa

s;N

-(3,

4-di

chlo

roph

enyl

)pro

panam

ide

Supe

r W

ham

(4 E

C)

Ced

ar(p

ropa

nil

+ m

olin

ate)

Arr

osol

o (3

+ 3

EC

)Zen

eca

(see

indi

vidu

al c

ompo

nen

ts)

quin

clor

acFac

et (7

5 D

F; 1

.5 G

)B

ASF

3,7-

dich

loro

-8-q

uin

olin

ecar

boxy

lic a

cid

quiz

alof

opAss

ure

II (0

.88

EC

)D

uPo

nt

(+)-2-

[4-[(6

-chlo

ro-2

-quin

oxal

inyl

)oxy

]phen

oxy]

pro

panoi

c ac

id conti

nued

AAES RESEARCH SERIES 462

188

App

endi

x Tab

le 1

. Con

tinued

.

Com

mon

nam

eTr

ade

nam

e (fo

rmula

tion

y )C

ompa

ny

Chem

ical

nam

e

SAN

-582

Fro

ntier

(7.5

EC

)B

ASF

2-ch

loro

-N-[(1

-met

hyl

-2-m

ethox

y)et

hyl

]-N

-(2,

4-(d

imet

hen

amid

)di

met

hyl

-thie

n-3

-yl)a

ceta

mid

esu

lfentr

azon

eAuth

ority

(75

DF)

FMC

N-[2,

4-di

chlo

ro-5

-[4-

(difl

uor

omet

hyl

)-4,

5-di

hyd

ro-3

-m

ethyl

-5-o

xo-1

H-1

,2,4

-triaz

ol-1

-yl]p

hen

yl]m

ethan

esulfo

nam

ide

thio

benca

rbB

oler

o (8

EC

; 10 G

)Val

ent

S-[(4

-chlo

roph

enyl

)met

hyl

]die

thyl

carb

amot

hio

ate

tric

lopy

rG

rands

tand

(3 S

L)D

owE

lanco

[(3,5

,6-t

rich

loro

-pyr

idin

yl)o

xy]a

cetic

aci

d2,

4-D

Wee

dar

64 (3

.8 S

L);

Rhon

e-Pou

lenc;

(2,4

-dic

hlo

roph

enox

y)ac

etic

aci

dH

i-D

ep (3

.8 S

L)U

AP

V10

029

— (80 W

P)

Val

ent

z ‘–‘ in

dica

tes

info

rmat

ion is

not

ava

ilabl

e or

not

app

licab

le.

y For

mula

tions

are

follo

wed

by

amou

nt of

act

ive

ingr

edie

nt pe

r ga

llon fo

r liq

uid

s an

d %

act

ive

ingr

edie

nt fo

r so

lid fo

rmula

tions.

Abb

revi

atio

ns

for

form

ula

tions:

EC

=em

uls

ifiab

le c

once

ntr

ate;

DF =

dry

flow

able

; G =

gra

nule

; ME

= m

icro

-enca

psula

ted;

WP

= w

etta

ble

pow

der;

SL

= so

lubl

e liq

uid

; F =

flow

able

.

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

189

Appendix Table 2. Common, coded, and scientific names of plant species.Common name Bayer codez Scientific Name

Barnyardgrass ECHCG Echinochloa crus-galli (L.) Beauv.Broadleaf signalgrass BRAPP Brachiaria platyphylla (Griseb.) Nash.Common purslane POROL Portulaca oleracea L.Ducksalad HETLI Heteranthera limosa (Sw.) Willd.Eclipta ECLAL Eclipta prostrata L.Hemp sesbania SEBEX Sesbania exaltata (Raf.) Rydb.Morningglory species IPOSS Ipomoea spp.Purple ammania AMMCO Ammannia coccinea Rottb.Red rice ORYSA Oryza sativa L.Sicklepod SENOB Senna obtusifolia L.Smartweed species POLSS Polygonum spp.Yellow nutsedge CYPES Cyperus esculentus L.

z WSSA-approved computer code from Composite List of Weeds, Revised 1989. WSSA, 1508 W.University Ave., Champaign, IL 61821.

AAES RESEARCH SERIES 462

190

App

endi

x Tab

le 3

. C

limat

olog

ical

dat

a, 1

997.

May

June

July

Augu

stTe

mp.

Rai

n-

Tem

p.R

ain-

Tem

p.R

ain-

Tem

p.R

ain-

Day

Max

Min

fall

Max

Min

fall

Max

Min

fall

Max

Min

fall

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

Fay

ette

ville

172

3876

5688

7084

612

7446

0.41

7353

9173

8863

373

400.

2975

5491

7485

654

7052

7557

9167

0.32

9169

574

5475

5178

5595

646

7850

7652

8056

8860

781

5682

5581

6477

590.

038

7759

0.74

8460

8568

8262

0.01

977

5184

5388

680.

0670

620.

0510

6639

7163

0.18

8967

0.33

8560

1168

4676

600.

1283

680.

2289

6212

7552

8062

0.92

8872

8570

0.24

1364

4785

630.

3991

7484

690.

2214

7554

0.22

8363

9174

8366

0.19

1573

5184

6294

720.

3390

700.

3016

7443

8161

1.52

9417

9266

0.10

1777

5383

611.

9692

7190

770.

3518

8562

7258

0.14

9170

8370

2.50

1985

6786

6190

6877

700.

1920

7251

0.85

8773

9372

8270

0.11

2172

7989

6993

7388

6222

7379

8968

9474

8364

0.01

2373

5289

7093

7283

5924

7358

8773

9471

8561

2574

640.

0489

6695

7485

6326

8068

8964

9574

8674

2785

630.

3989

6896

7488

6328

6856

8967

9674

8965

2970

5280

650.

5098

7389

6530

7958

0.81

8767

0.60

8565

0.13

9069

3170

510.

5283

6389

69co

nti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

191

App

endi

x Tab

le 3

. C

onti

nued

.M

ayJu

neJu

lyAugu

stTe

mp.

Rai

n-

Tem

p.R

ain-

Tem

p.R

ain-

Tem

p.R

ain-

Day

Max

Min

fall

Max

Min

fall

Max

Min

fall

Max

Min

fall

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

Lonok

e (L

ittle

Roc

k Air

port

)1

6547

7147

8262

9061

275

5076

580.

3077

6192

613

7856

7153

8460

9665

467

562.

1874

4778

6510

471

573

591.

4875

5177

5897

626

6648

8255

8356

8564

761

4280

5690

6077

678

5747

0.04

8564

0.02

9168

0.06

8269

953

420.

0173

560.

6174

670.

1290

7010

6538

7449

7666

0.04

9472

1163

480.

2578

4780

660.

0296

760.

312

4837

7148

8362

0.06

9680

1354

3680

4588

650.

0989

710.

114

6139

8457

0.05

8970

9576

1567

4480

5889

6896

8116

7350

7852

8367

2.64

9878

1766

4388

5484

690.

6885

7118

7746

9062

8765

9070

1.0

1981

5885

640.

5592

6794

760.

320

8154

7060

9171

9669

2177

5877

5892

7591

6422

6151

0.51

7553

9472

7857

2362

490.

5883

5594

7395

610.

0224

6645

8266

0.42

9671

9460

2564

520.

5385

6691

7396

6226

5651

0.71

8972

0.22

9471

0.51

9865

2762

520.

6888

650.

5294

7510

165

2864

500.

7677

660.

7692

700.

8610

168

2974

5081

5887

690.

3110

369

3082

5782

630.

4792

760.

0210

173

3180

6399

71co

nti

nued

AAES RESEARCH SERIES 462

192

App

endi

x Tab

le 3

. C

onti

nued

.M

ayJu

neJu

lyAugu

stTe

mp.

Rai

n-

Tem

p.R

ain-

Tem

p.R

ain-

Tem

p.R

ain-

Day

Max

Min

fall

Max

Min

fall

Max

Min

fall

Max

Min

fall

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

Roh

wer

183

4974

5892

7486

692

7553

7963

9473

8560

372

540.

6275

5894

7487

634

7047

8260

9274

9067

572

5277

6195

6694

686

7354

8059

8364

9163

783

5984

5885

7185

648

8262

8764

9070

7764

982

570.

6191

6993

6872

640.

2010

8350

8167

1.75

9371

8369

0.25

1175

4879

680.

1292

7291

7312

7852

8064

9474

9173

0.39

1374

4485

680.

3396

7693

7414

7947

8870

9571

9270

0.11

1585

5289

6894

690.

2393

7116

7955

8673

9270

9473

1780

5390

673.

2593

730.

0294

7418

8961

8567

0.27

9472

9373

1990

6886

6794

7391

7020

8963

0.92

9271

9372

9471

0.02

2176

580.

0693

7294

7390

6622

7456

0.18

9373

9674

8663

2375

5893

7397

720.

3980

5924

8460

9674

9674

8559

2586

611.

2495

7297

7586

5726

8071

9170

1.01

9375

8860

2783

640.

8192

7199

7792

6328

8865

3.21

9567

100

7692

6429

7863

0.28

9368

2.28

9876

9464

3080

6388

701.

2198

710.

8595

6631

8562

0.51

8568

9672

conti

nued

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

193

App

endi

x Tab

le 3

. C

onti

nued

.M

ayJu

neJu

lyAugu

stTe

mp.

Rai

n-

Tem

p.R

ain-

Tem

p.R

ain-

Tem

p.R

ain-

Day

Max

Min

fall

Max

Min

fall

Max

Min

fall

Max

Min

fall

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

(OF

)(O

F)

(in.)

Stu

ttga

rt1

8348

7958

8976

8869

272

520.

0278

5994

7688

643

7353

0.26

7360

9577

8862

473

4882

6196

7790

695

7246

7459

8865

9570

0.08

674

5578

5880

6490

637

8360

8161

8570

8463

881

6287

6689

7477

650.

109

8257

0.52

8966

9169

0.09

7567

0.07

1074

5180

670.

1192

730.

0285

700.

0511

7750

7466

0.01

9473

0.23

9272

1278

4979

6593

7591

7413

7145

8368

9574

9275

1479

530.

0188

7096

7493

720.

0715

8353

8969

9670

0.09

9373

0.10

1678

5388

6991

7193

7517

8453

8367

3.15

9575

9475

1888

6584

650.

1395

7593

7419

8969

8666

9575

8372

0.86

2087

6391

7295

7592

740.

2321

7563

9073

9575

9270

2278

5490

7096

7686

6423

7754

9470

9778

7961

2485

6486

7696

7785

6325

7968

0.31

8675

9878

8663

2685

690.

0383

7499

7889

6527

8564

0.81

8375

100

7990

6728

8665

1.20

8573

100

7993

6829

7759

0.03

9170

1.92

9974

0.17

9572

3081

5990

730.

4390

710.

0495

7231

8363

0.39

8768

9675

AAES RESEARCH SERIES 462

194

Conversion TableU.S. to Metric Metric to U.S.

multiply multiplyto convert from to U.S. unit by to convert from to metric unit by

length lengthmiles kilometers 1.61 kilometers miles .62yards meters .91 meters yards 1.09feet meters .31 meters feet 3.28inches centimeters 2.54 centimeters inches .39

area and volume area and volumesq yards sq meters .84 sq meters sq yards 1.20sq feet sq meters .09 sq meters sq feet 10.76sq inches sq centimeters 6.45 sq centimeters sq inches .16cu inches cu centimeters 16.39 cu centimeters cu inches .06acres hectares .41 hectares acres 2.47

liquid measure liquid measurecu inches liters .02 liters cu inches 61.02cu feet liters 28.34 liters cu feet .04gallons liters 3.79 liters gallons .26quarts liters .95 liters quarts 1.06fluid ounces milliliters 29.57 milliliters fluid ounces .03

weight and mass weight and masspounds kilograms .45 kilograms pounds 2.21ounces grams 28.35 grams ounces .04

temperature temperatureF C 5/9(F-32) C F 9/5(C+32)

HERBICIDE EVALUATION IN ARKANSAS RICE, 1997

195

AAES RESEARCH SERIES 462

196