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MB Alternatives – Almost DONE!!!

MB Alternatives – Almost DONE!!!. Culpepper and Sumner University of Georgia Tifton Campus. Viable MB Fumigant Alternatives. MIDAS 3-WAY Paladin. Herbicides. MIDAS. Application procedure similar to MB MIDAS is a 50:50 or 98:2 mix with Pic Use rate similar to MB

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MB Alternatives – Almost DONE!!!

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  1. MB Alternatives – Almost DONE!!! Culpepper and Sumner University of Georgia Tifton Campus

  2. Viable MB Fumigant Alternatives • MIDAS • 3-WAY • Paladin Herbicides

  3. MIDAS • Application procedure similar to MB • MIDAS is a 50:50 or 98:2 mix with Pic • Use rate similar to MB • Reduce use rate 40% under VIF mulches. Effective product but limited adoption because of economics.

  4. Telone/Pic/Vapam • Spring applications = 16 of 17 experiments over 4 years with greater than 93% nutsedge control Ideal Placement Vapam = 4 inches Chloropicrin = 8 inches Telone = 12 inches

  5. 20 feet 136 25 feet 950 16 WAP 24 WAP 1550 1550 3440 Purple Nutsedge Black LDPE Mulch 32 WAP 60 WAP

  6. Note moisture and compaction

  7. Telone II fb Pic fb Vapam LDPE mulch Telone II fb Pic LDPE mulch Telone II fb Vapam LDPE mulch V4-05, 60 DAT

  8. Percent purple nutsedge control by Pic Chlor 60 @ 21G as impacted by mulch. Ponder, Spring 2007-2008. 82 a 55 b 38 d LDPE 1.25 mil LDPE 1.75 mil Blockade 1.25 mil

  9. Percent Purple Nutsedge Control by MB and 3-WAY at Pepper Harvest. Ponder, Spring 2008. 99 99 87 70 MB 3-WAY Plots were 1 bed by 50 feet. Spring soil temp 60 F; Fall soil temp 93.

  10. Paladin (DMDS + Pic) • Labeled …8 months from Nov 2009…..April or May I HOPE. • 79:21 mixture with chloropicrin • Same application procedures as MB • Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds.

  11. Percent yellow nutsedge control at harvest as impacted by Paladin rate. TyTy, GA 2008.* 100 a 99 a 98 a 98 a 60 G 50 G 40 G 30 G Paladin Rate Blockade mulch

  12. Percent Purple Nutsedge Control by Paladin at Pepper Harvest. Ponder, Spring 2008. 99 99 99 98 93 85 DMDS 40 G DMDS 50 G DMDS 60 G Plots were 1 bed by 50 feet. Spring soil temp 60 F; Fall soil temp 93. Blockade mulch.

  13. Percent large crabgrass control at harvest as impacted by Paladin rate. TyTy, GA 2008.* 75 a 66 b 49 c 33 d 60 G 50 G 40 G 30 G Paladin Rate

  14. Bell Pepper (Plasticulture and Bareground) Split application PRE: 6-8 oz Dual Mag 2 to 3 lb Devrinol Command POST 1: 8-10 oz Dual Mag POST 2: Select Max as needed

  15. Paladin (DMDS + Pic) • Labeled ???? • 79:21 mixture with chloropicrin • Same application procedures as MB • Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds. • Must use high barrier mulch

  16. Must Use Mulch Listed on Paladin Label

  17. Paladin 50 G, Blockade DMDS 70 G, LDPE

  18. Paladin (DMDS + Pic) • Labeled ???? • 79:21 mixture with chloropicrin. • Same application procedures as MB. • Excellent nutsedge control; needs help on annual grasses, pigweed, and likely other small seeded annual broadleaf weeds. • Must use high barrier mulch. • Smell is a serious issue and must be addressed.

  19. Mitigating Smell Issues 1. Correct Mulch – Mulch options will be listed on label 2. Moisture must be ideal

  20. Water Content (%/dry weight of soil) 6 7 9 10 Start Time = 9:00 AM LDPE White Mulch

  21. Mitigating Smell Issues • 1. Correct Mulch – Mulch options will be listed on label • Moisture must be ideal • Compaction

  22. Distance from center of bolt to center of bolt on top link was either 27.5 or 28 inches

  23. LDPE 27.5” LDPE 28” 15 % reduction due to increased bed compaction

  24. Paladin (DMDS + Pic) • Odor is number 1 concern • Plant back: • Spring up to at least 30 days in some envir • Fall likely around 21 days • 3. Cost is unknown?????????????

  25. Future of MB Alternative Efforts • Get Paladin out with 4 or 5 growers in secluded areas this fall (15-25 acres) to determine if this is a viable alternative assuming product is economical.

  26. Future of MB Alternative Efforts • Get Paladin out with 4 or 5 growers in secluded areas this fall (15 acres or so) to determine if this is a viable alternative (assuming product is economical. • 2. Summer of 2010 will be last submission of methyl bromide CUE request (if Paladin use is sustainable and economical).

  27. Future of MB Alternative Efforts • Get Paladin out with 4 or 5 growers in secluded areas this fall (15 acres or so) to determine if this is a viable alternative (assuming product is economical. • 2. Summer of 2010 will be last submission of methyl bromide CUE request (if Paladin use is sustainable and economical). • 3. One year from today discuss results from Paladin efforts and one additional fumigant system in development.

  28. Herbicide Coated Mulch No Fumigant, No Herbicide BIG Film No Fumigant, No Herbicide, Blockade Film

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