2014 fine tuning the fumigant system
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2014: Fine Tuning The Fumigant System Stanley Culpepper, University - PowerPoint PPT Presentation

May 17, 2023 •39 likes •479 views

2014: Fine Tuning The Fumigant System Stanley Culpepper, University of Georgia Tifton Campus Potential MB Fumigant Alternatives 1. UGA 3-WAY 2. Paladin Pic 3. Trifecta 4. Pic Chlor 60 Production Goal FUMIGANT OPTIONS FUMIGANT OPTIONS

  1. 2014: Fine Tuning The Fumigant System Stanley Culpepper, University of Georgia Tifton Campus

  2. Potential MB Fumigant Alternatives 1. UGA 3-WAY 2. Paladin Pic 3. Trifecta 4. Pic Chlor 60

  3. Production Goal FUMIGANT OPTIONS FUMIGANT OPTIONS

  4. Fumigant Research 2013 and 2014 Distance between sites: 67 miles

  5. Potential MB Fumigant Alternatives 1. UGA 3-WAY 2. Paladin Pic 3. Trifecta 4. Pic Chlor 60

  6. UGA 3-WAY Telone/Pic/Metam Applicators used to inject metam 4” deep and 4” apart in the final bed Ideal Placement More Common Metam = 4 in. (75 G) Metam = 4 in. (75 G) Chloropicrin = 8 in. (150 lb) Pic Chlor 60 = 8 in. (21 G) Telone II = 12 in. (12 G)

  7. Nutsedge response to the 3-WAY. Tift Co., 2013. 100 99 a 91 b 80 89 b 60 % 40 20 494 plant/A 464 plant/A 160 plant/A 0 LDPE VIF TIF Plots were 1 bed by 150 feet. Fall soil temp 84. (Veg 43-13) 82,460 plant/A check

  8. Nutsedge response to the 3-WAY. Echols Co., 2013. 100 97 a 80 85 b 60 65 c % 40 20 37,265 plant/A 6960 plant/A 290 plant/A 0 LDPE VIF TIF Plots were 1 bed by 150 feet. Spring soil temp 64. (Veg 13-13) 319,250 plant/A check

  9. UGA 3-WAY. Fall 2013. Tift Co. Check 3-WAY; LDPE

  10. UGA 3-WAY. Fall 2013. Tift Co. 3-WAY; TIF Check

  11. UGA 3-WAY Rates Driven By Nutsedge Populations GA/FL Line (sands) Light to Severe: UGA 3-WAY TIF Herbicide NOT Required (would still suggest Dual Topical for pepper)

  12. UGA 3-WAY Rates Driven By Nutsedge Populations SPRING: South GA (loamy sands) Light to Moderate: 3-WAY LDPE Severe: 3-WAY TIF FALL: South GA (loamy sands) Light : 3-WAY LDPE Moderate to Severe: 3-WAY TIF Herbicide NOT Required (would still suggest Dual Topical)

  13. Pic Chlor 60 1. UGA 3-WAY 2. Paladin Pic 3. Trifecta 4. Pic Chlor 60

  14. Nutsedge response to the Pic Chlor 60. Tift Co., 2013. 100 95 a 80 83 b 82 b 60 61 b % 40 20 23,925 plant/A 9425 plant/A 11,890 plant/A 1740 plant/A 0 21 GPA 28 GPA 21 GPA 28 GPA VIF TIF Plots were 1 bed by 150 feet. Spring soil temp 58F. (Veg 14-13) 36,685 plant/A check

  15. Nutsedge response to the Pic Chlor 60. Echols Co., 2013. 100 80 84 a 60 % 40 18 b 20 248,820 plant/A 29,870 plant/A 0 28 GPA 28 GPA VIF TIF Plots were 1 bed by 150 feet. Spring soil temp 64. (Veg 13-13) 319,250 plant/A check

  16. Pic Chlor 60 Rates Driven By Nutsedge Light to Moderate: 28 G (340 lb) TIF Moderate to Severe: 28 GPA TIF Herbicide System Required

  17. Palmer Amaranth Control With Pic Chlor 60. Tift Co., 2013. No Herbicide Plus Dual Mag 12 oz/A

  19. Nutsedge response to the fumigants. Echols Co., 2013. 100 97 95 a 80 a 84 b 60 % 40 20 6380 plant/A 290 plant/A 308 plant/A 0 PIC CHLOR 60 UGA 3-WAY MB 67:33 TIF TIF 240 LB TIF Plots were 1 bed by 150 feet. Spring soil temp 64. (Veg 13-13) 319,250 plant/A check

  20. Potential MB Fumigant Alternatives 1. UGA 3-WAY 2. Paladin Pic 3. Trifecta 4. Pic Chlor 60

  21. Paladin Pic Rates Driven By Nutsedge Light to Moderate: 40-45 GPA TIF Moderate to Severe: 50 GPA TIF Herbicide System Required

  22. Paladin Pic Light Populations: 40 GPA TIF BE CAREFUL FOR ODOR MANAGEMENT Moderate to Severe: 50 GPA TIF Herbicide System Required

  23. Trifecta 1. UGA 3-WAY 2. Paladin Pic 3. Trifecta 4. Pic Chlor 60

  24. Trifecta Rates Driven By Nutsedge Populations Light to Moderate: 350-375 LB/A TIF Moderate to Severe: 375-400 LB/A TIF Herbicide System Required

  25. Trifecta Light Populations: 40 GPA TIF BE CAREFUL FOR ODOR MANAGEMENT Moderate to Severe: 50 GPA TIF Herbicide System Required

  26. 2015 OPTIONS INCREASE …..I THINK

  27. Systems for 2015. Tift Co., 2013. 100 99.9 99.9 94 a a 80 ab 85 b 72 c 60 % 40 20 1470 P/A 380 P/A 83 P/A 40 P/A 35 P/A 0 System Paladin Pic Trifecta 3-WAY System A 40 G 350 lb TIF B Plots were 1 bed by 150 feet. Spring soil temp 64. (Veg 42-13) 32,318 plant/A check

  28. System A Check

  29. New Systems Potential BENEFITS: Outstanding pest control. Equal cost or slightly lower??? Reduced buffer restrictions. Far more consistent. No herbicide under mulch. Lower odor concerns.

  30. New Systems Potential NEGATIVES: 2 or 3 fumigants; 2 application points Shank inject 4 inches on bed top Slower application than Trifecta, Pic Chlor Plant back interval longer

  31. 2014 Fumigant System Effectiveness 1. UGA 3-WAY TIF 2. Paladin Pic >= Trifecta TIF 3. 3-WAY (Spring) LDPE (not GA/FL line) 4. Pic Chlor 60 at 28 GPA TIF

  32. 2014 Fumigant System Effectiveness 1. UGA 3-WAY TIF 2. Paladin Pic >= Trifecta TIF 3. 3-WAY (Spring) LDPE (not GA/FL line) 4. Pic Chlor 60 at 28 GPA TIF

  33. 2015 Fumigant System Effectiveness 1. System A 2. System B 3. System C 4. UGA 3-WAY TIF 5. Paladin Pic >= Trifecta TIF 6. 3-WAY (Spring) LDPE (not GA/FL line) 7. Pic Chlor 60 at 28 GPA TIF

  34. 2015 Fumigant System Effectiveness 1. System A COST VS 2. System B CONTROL?? 3. System C 4. UGA 3-WAY TIF 5. Paladin Pic >= Trifecta TIF 6. 3-WAY (Spring) LDPE (not GA/FL line) 7. Pic Chlor 60 at 28 GPA TIF

  35. Fumigant Plant Back Intervals P P E L S A T N T C B O A N C T K R O L

  36. Factors Influencing Rate/Control 1. F U 1. Higher populations of nutsedge M I 2. Warmer soil temperatures G 3. Low moisture conditions (not wet either) A N 4. Soft bed (compaction) — double press?? T 5. Lighter texture the soil R A T E

  37. Factors Influencing Rate/Control 1. F U 1. Higher populations of nutsedge M I 2. Warmer soil temperatures G 3. Low moisture conditions (not wet either) A N 4. Soft bed (compaction) T 5. Lighter texture the soil R INFLUENCE CONCENTRATION OVER TIME A T E

  38. Factors Influencing Rate/Control We can influence quite quickly if willing!!!! 1. F U 1. Higher populations of nutsedge M I 2. Warmer soil temperatures G 3. Low moisture conditions (not wet either) A N 4. Soft bed (compaction) T 5. Lighter texture the soil R A T E

  39. Managing Nutsedge YEAR ROUND 1. Row middles with Sandea 2. Spray as soon as crop done:

  40. Roundup 2 qt/A fb 2 qt/A 10 days later! Then treat as needed.

  41. Amount of Sandea remaining on plastic mulch. TyTy GA, 2005. 100 80 60 percent no wash washed 40 20 0 1 2 3 4 5 days Grey, Culpepper

  42. Managing Nutsedge YEAR ROUND 1. Row middles with Sandea 2. Spray as soon as crop done: 3. When mulch is out of field:

  43. ROTATE DISKING WITH ROUNDUP AND 1 QT 3WK AFTER NUTSEDGE EMERGENCE ADD SANDEA IN WITH ROUNDUP ONCE IF NOT CARRYOVER PROBLEMS

  44. Questions or Comments? Continued Thanks: William UpChurch and Perry Fuller

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