impact of different adjuvants on efficacy of transform and sivanto for control of sugarcane aphid
TRANSCRIPT
Impact of Different Adjuvants on Efficacy of Transform and Sivanto for Control of Sugarcane Aphid
Gus LorenzUniversity of Arkansas
Sorghum – Sugarcane Aphid Research Exchange Meeting
New Orleans, LAJanuary 7 – 8, 2016
CollaboratorsName Affiliation
Robert Bowling Texas A&M
Raul Villanueva Texas A&M
Ali Zarrabi and Tom Royer Oklahoma State
David Kerns LSU
David Buntin University of Georgia
Gus Lorenz,Nick Seiter and
Glenn Studebaker
University of Arkansas
Introduction• Sugarcane aphids are a problem
• Sometimes you have to spray• Do adjuvants help improve control
when you do?
Materials & Methods
• Design: small plot RCB w/ 4 reps1. Base treatments were Transform
0.5 oz and Sivanto at 3 oz: 1. alone; 2. + NIS; 3. + COC; 4. + MSO; 5. + SS2. Also, had an UTC and optional treatments of 1.0 and 1.5 oz Transform; 5 and 7 oz of Sivanto
Materials and MethodsLocation Arkansas Georgia Louisiana Oklahoma Texas
Date of Planting 30 June 24 June 10 June 5 June 5 June
Variety P84P80 KS585 DKS5400 KS 585
Spray Date 24 Aug 11 Aug 8 July 17 Aug 4 Jun
Growth Stage Pre-boot Boot Pre-Boot Milk/ Soft
Dough
Application Equipment MudMaster CO2
BackpackJohnDeere
HighboyCO2
BackpackCO2
Backpack
Nozzle Dual flat fan Flat fan Hollow Cone Flat fanFlat fan and
2 hollow cone
Ground Speed 3 mph 3 mph 3.25 mph 3 mph 2.5 mph
GPA 10 10 10 20 15
Data Analysis
• Used base treatments of Transform and Sivanto alone and with each adjuvant with and without check (No difference)
• Additional comparisons with optional treatments were included and analyzed
• Total aphid numbers upper and lower leaf per treatment are shown (NSD in separation of upper vs lower) at: 2-5, 6-9 and 10-14 DAT
• We used ARM, summary across trials, LS Means for separation (p=0.05)
2-5 DAA0
10
20
30
40
50
60
70
80
90
Adjuvant Trial, 2015Summary Across 4 Trials
Transform 0.5 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves NSD
UTC – 660 mean no. sca/mid and upper leaves
0
10
20
30
40
50
60 b
bc bc
bc c
c
Milo Adjuvant TrialBuntin UGA Transform 0.5 oz
+ Crop Oil Conc. (SS 83-17)
+ NIS (SS Adept)
+ MSO (SS Mission)
Transform @ 1.0 oz
Transform @ 1.5 oz2 days after application
Aver
age
aphi
ds/p
lant
0
10
20
30
40
50
60
70
80
90
bcd
e
b
cde
bcd
de
Milo Adjuvant TrialLorenz Arkansas
Transform 0.5oz/a
+ COC
+ NIS
+ MSO
+ Silicon Surfactacnt
Transform 1oz/a
9 days after application
Aver
age
aphi
ds/1
0 le
aves
0
200
400
600
800
1000
1200
1400
bcd
e
b
cde
bcd
de
Milo Adjuvant TrialLorenz Arkansas
Transform 0.5oz/a + COC + NIS + MSO + Silicon SurfactacntTransform 1oz/a
12 days after application
Aver
age
aphi
ds/1
0 le
aves
2-5 DAA0
10
20
30
40
50
60
70
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 660 mean no. sca/mid and upper leaves
6-9 DAA0
2
4
6
8
10
12
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 570 mean no. sca/mid and upper leaves
10-14 DAA0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz
COC
NIS
Silicon Surfactant
MSO
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves NSD
UTC – 423 mean no. sca/mid and upper leaves
2-5 DAA0
10
20
30
40
50
60
70
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Transform 0.5 oz with/without ad-juvant
Transform 1 oz
Transform 1.5 oz
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC - 660 mean no. sca/mid and upper leaves
2-5 DAA0
1
2
3
4
5
6
7
8
9
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Sivanto 2-3 oz with/without adjuvant
Sivanto 5 oz
Sivanto 7 oz
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 660 mean no. sca/mid and up-per leaves
6-9 DAA0
10
20
30
40
50
60
70
80
Milo Adjuvant Trial, 2015Summary Across 4 Trials
Transform 0.5 oz with/without adjuvant
Transform 1 oz
Transform 1.5 oz
Sivanto 2-3oz with/without adjuvant
Sivanto 5 oz
Sivanto 7 oz
Mea
n nu
mbe
r SCA
/mid
and
upp
er le
aves
NSD
UTC – 570 mean number sca/mid and upper leaves
Yield42
44
46
48
50
52
54
56
58
cdbcd
cd
a-d
a
d
ab
cda-d
abc
e
Milo Adjuvant Trial, 2015Texas
Transform 0.5oz
Crop Oil Conc.(generic)
NIS (Induce)
MSO + NIS ( Dyne-Amic)
Silicone Surfactant
Sivanto 3oz
Crop Oil Conc. (generic)
NIS (Induce)
MSO + NIS (Dyne-Amic)
Silicon Surfactant
UTC
bu/a
cre
Key Learnings• Learning 1- Adjuvants did not
significantly improve control of SCA in these trials
• Learning 2- See Learning 1
Next Steps• Suggestion 1-Aerial vs Ground App • Suggestion 2- Lower GPA• Suggestion 3- Rainfastness• Suggestion 4- Just end it and cut your
losses
Ento Crew Being Sticky
Questions?