2011 gfvga: mb alternatives – will it ever end??
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2011 GFVGA: MB Alternatives – Will it Ever End??. Culpepper and Sumner University of Georgia Tifton Campus. Potential MB Alternatives. Pic Chlor 60 + herbicides UGA 3-WAY Paladin Pic + herbicides WSP + herbicides. Potential MB Alternatives. Pic Chlor 60 + herbicides UGA 3-WAY - PowerPoint PPT PresentationTRANSCRIPT
2011 GFVGA: MB Alternatives – Will it Ever End??
Culpepper and Sumner
University of Georgia
Tifton Campus
Potential MB Alternatives
1. Pic Chlor 60 + herbicides
2. UGA 3-WAY
3. Paladin Pic + herbicides
4. WSP + herbicides
Potential MB Alternatives
1. Pic Chlor 60 + herbicides
2. UGA 3-WAY
3. Paladin Pic + herbicides
4. WSP + herbicides
Pic Chlor 60
1. Rate
2. Mulch
3. Soil temp (spring vs fall)
4. Crop
5. Number crops per fumigation
6. Herbicide system required
Nutsedge Response to Pic Chlor 60 plus herbicides in PEPPER. Ponder, 2010.
0
20
40
60
80
100
Spring
Plots were 1 bed by 50 feet. Spring soil temp 55 F.
67 d
21 GLDPE
35 GLDPE
21 GBlockade
35 GBlockade
78 c
85 b
98 a
Nutsedge Response to Pic Chlor 60 plus herbicides in PEPPER. Ponder, 2010.
0
20
40
60
80
100
Spring Fall
LSD for spring = 6; LSD for fall = 7.
Plots were 1 bed by 50 feet. Spring soil temp 55 F; Fall soil temp 89.
67
21 GLDPE
35 GLDPE
21 GBlockade
35 GBlockade
78 7385
68
85
98
16
Pic Chlor 60
1. Rate
2. Mulch
3. Soil temp (spring vs fall)
4. Crop
5. Number crops per fumigation
6. Herbicide system required
PIC CHLOR 60: 21 G, Blockade Mulch
Add Sandea POST if no carryover problems
21 G; Blockade Mulch 35 G; Blockade Mulch
35 G; LDPE Mulch21 G; LDPE Mulch
Pic Chlor 60 + Herbicides
21 G; Blockade Mulch 35 G; Blockade Mulch
35 G; LDPE Mulch21 G; LDPE Mulch
Pic Chlor 60 + Herbicides
Paladin Pic + Herbicides
Blockade Mulch
WSP + Herbicides
Blockade Mulch
3-WAY
LDPE Mulch
Fall Comparison of MB Alternatives TyTy, 2010.
Nutsedge Response to the 3-WAY, Paladin Pic, and WSP plus herbicides in PEPPER. TyTy, 2010.
0
20
40
60
80
100
Spring Fall
LSD for spring = 6; LSD for fall = 7.
Plots were 1 bed by 50 feet. Spring soil temp 55 F; Fall soil temp 89.
97
3-WAY Paladin Pic WSP
96 95 9497
90
Telone/Pic/Vapam
Spring applications = 17 of 18 experiments over 5 years with greater than 93% nutsedge control (less effective in the fall)
Vapam = 4 inches
Chloropicrin = 8 inches
Telone = 12 inches
Ideal PlacementVapam = 4 inches
Pic Chlor 60 = 8 inch
More Common
Note moisture and compaction
1. Paladin Labeled for Georgia in Nov/Dec
2. Recommend 79:21 mixture with chloropicrin
3. Same application procedures as MB
4. Culpepper rate = 50 GPA (if economical)
5. Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.
Paladin Pic (DMDS + Pic)
Percent Purple Nutsedge Control by Paladin at Pepper Harvest. Ponder, Spring 2008.
0
20
40
60
80
100
Spring
Fall
99
Plots were 1 bed by 50 feet. Spring soil temp 60 F; Fall soil temp 93. Blockade mulch.
85
9993 98
99
DMDS 40 G DMDS 50 G DMDS 60 G
Percent large crabgrass control at harvest in bell pepper. TyTy, GA 2010.
0
20
40
60
80
100
50 G40 G
Paladin Pic Rate
6 c26 b
92 a
60 G
26 b
96 a
97 a
+ herbicide
+ herbicide
+ herbicide
Herbicide = Devrinol preplant and Dual Magnum POST
Percent pigweed control at harvest in bell pepper. TyTy, GA 2010.
0
20
40
60
80
100
50 G40 G
Paladin Pic Rate
50 c
70 b
99 a
60 G
89 b
99 a
99 a
+ herbicide
+ herbicide
+ herbicide
Herbicide = Devrinol preplant and Dual Magnum POST
1. Labeled ????
2. 79:21 mixture with chloropicrin
3. Same application procedures as MB
4. Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.
5. Must use high barrier mulch as listed on the label
Paladin Pic (DMDS + Pic)
Paladin Pic Labeled Tarps
Olefinas Embossed VIF, Klerks VIF, Pliant Blockade (1.25 mil) black or white, XL Blockade (0.00125), Pliant Metalized black VIF. Canslit Metalized (1.25 mil) high barrier black or white, FilmTec VIF (1.25 mil), Ginegar VIF Embossed, Cadillac VIF, Guardian VIF (1.2 mil),Mid-South Extrusion VIF, Bromostop (1.38 mil)
Paladin Pic 50 G, Blockade
Paladin Pic 70 G, LDPE
Paladin Pic
1. Labeled ????
2. 79:21 mixture with chloropicrin.
3. Same application procedures as MB.
4. Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.
5. Must use high barrier mulch.
6. Smell is a serious concern; must be addressed.
1. Moisture must be ideal
2. Compaction
Mitigating Smell Issues
1. Moisture must be ideal
2. Compaction
3. No previous crop residue
4. Purge injection lines before lifting shank from soil.
Mitigating Smell Issues
Based on mean daily low soil temp at 8”
50-54 F: 42 day plant back
55-60 F: 35 day plant back
61-70 F: 28 day plant back
>70 F: 21 day plant back
Paladin Pic Plant Back Interval
Paladin Pic Buffer Zone
% Row treated
Paladin Pic 79:21 Rate
5 10 15 20 25 30 35
50% 45 GPA 25 25 35 60 80 95 115
50% 50 GPA 25 30 55 80 100 120 140
50% 55 GPA 25 40 65 95 115 135 155
50% 60 GPA 25 50 80 110 135 155 175
Paladin Community Outreach Brochures
Paladin 1st Responder Bulletins
Steward this product or it will be gone quickly!
Paladin Pic Community Outreach
1. Potentially new fumigant system being studied.
2. WSP is just a code not a trade name.
3. Data in 2010 looks very good.
WSP?
Percent weed control by the WSP + Herbicide Program. 2010
0
20
40
60
80
100
nutsedge crabgrass pigweed
97
Spring pepper Fall pepper Fall Tomato
9399 999999
Response of Root Knot nematode to the WSP. Langston, 2010.
0
20
40
60
80
100
Telone II WSP None
0 b
Incidence
97 a
8 b
0
1
2
3
4
Telone II WSP None
Severity
3.6 a
0.008 b
0.05 b
Jumbo pepper yield with a fall fumigation. Four harvests (box/A). TyTy, 2010.
0
200
400
600
800
1000
1200
174 c
Pic Chlor 60
Pal Pic
WSP
648 b
974 a
1048 a
588 b
1080 a1042
a
21 G, LDPE
35 G, VIF
21 G, VIF
35 G, LDPE
3-WAY
4. High barrier (VIF) mulch will be needed.
5. Same application procedures as MB.
6. Minimal buffers in 2012?
7. Three large on farm studies lined up.
8. May be gone in a month or we may be recommending within a year.
WSP?
Several of these labels may be GA ONLY
Herbicide Program for Pepper: 1. Devrinol applied preplant under mulch. (Command?)2. Dual Magnum applied topically 7 to 10 d after transplant3. Select Max without adjuvant as needed (grass <3 inch)
Herbicide Program for Tomato and Pepper
Herbicide Program for Tomato: 1. Devrinol + Dual Magnum preplant under mulch. (Metribuzin?)2. Sandea POST 3. Select Max without adjuvant as needed (grass <3 inch)
Reflex could be added preplant to both crops once labeled.
Several of these labels may be GA ONLY
Herbicide Preplant Application Method
Comparing MB Alternatives
1. Drop In replacement + - +2. Acres w/o refill - - +3. Smell - - +/- ?4. Nutsedge + +/- +5. Annual grasses - + -6. Broadleaf weeds - + -7. Mulch type - + -8. Need Herbicides yes fall yes
PalPic 3-WAY WSP
Fumigant + Mulch + Herbicides Expense
MB = $1276
3-WAY = $900
Paladin Pic = $1080
WSP = $921
Pic Chlor 60 (35 G)= $1133
Pic Chlor 60 (21 G)= $877
Cost per acre land assuming treating 53% of the land area.
Questions?