Slide Presentation

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AUTHOR
Stanley Culpepper
Extension Weed Specialist
University of Georgia
Tifton, GA

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TABLE OF CONTENTS
  1. Implementing MB Alternatives in GA
  2. Loss of Methyl Bromide
  3. Viable MB Fumigant Alternatives
  4. MIDAS
  5. MIDAS
  6. Non-treated
  7. MIDA vs MB
  8. MIDAS
  9. MIDAS 350 lb/A Broadcast
  10. MIDAS
  11. DMDS (Paladin)
  12. DMDS (Paladin)
  13. Photo
  14. DMDS (Paladin)
  15. Non-treated
  16. DMDS vs MB
  17. Percent yellow nutsedge control at harvest as impacted by DMDS rate
  18. Percent large crabgrass control at harvest as impacted by DMDS rate
  19. Photo
  20. DMDS (Paladin)
  21. DMDS 60 G, Blockade vs DMDS 70 G, LDPE
  22. DMDS (Paladin)
  23. Telone/Pic/Vapam
  24. Telone II fb Cholorpicrin fb Vapam
  25. 3 Way vs MB
  26. Number of Nutsedge Plants/A with MB Alternatives in Pepper.
  27. Number of Amaranth Plants/A with MB Alternatives in Pepper.
  28. MB, MIDAS, DMDS application 8" deep
  29. Telone II Application 12 to 14" deep
  30. Chloropicrin placed 8 inches deep
  31. Note moisture and compaction
  32. Photo
  33. Metam Application
  34. Other Things I Need To Know
  35. Other Things I Need To Know
  36. Telone II fb Vapam or Pic or Pic fb Vapam
  37. Other Things I Need To Know
  38. Other Things I Need To Know
  39. Telone + Chloropicrin (100 lb) followed by Vapam
  40. Other Things I Need To Know
  41. Telone II fb chloropicrin
  42. Other Things I Need To Know
  43. Percent Purple Nutsedge Control by MB Alternative Systems
  44. Percent Purple Nutsedge Control by MB Alternative Systems
  45. Other Things I Need To Know
  46. Percent Purple Nutsedge Control by MB Alternative Systems
  47. Percent Purple Nutsedge Control by MB Alternative Systems
  48. Other Things I Need To Know
  49. Comparing MB Alternatives
  50. Bigger Issue than Loss of MB?
  51. Plasticulture - Best Case
  52. Bareground - Best Case
  53. Bigger Issue than Loss of MB?
  54. Bigger Issue than Loss of MB?
  55. Fumigant RED's
  56. Fumigant RED's
  57. Research Objectives
  58. Chlropicrin Released for Bare Soil
  59. Questions or Comments?



SLIDE CONTENTS
  1. Implementing MB Alternatives in GA University of Georgia Tifton Campus
  2. Loss of Methyl Bromide
  3. Viable MB Fumigant Alternatives MIDAS (methyl iodide plus chloropicrin) DMDS (dimethyl disulfide plus chloropicrin) Trade Name will be Paladin Telone II fb chloropicrin fb Vapam (3-WAY)
  4. MIDAS Labeled in 2008. Application procedure similar to MB.
  5. MIDAS Labeled Application procedure similar to MB. MIDAS is a 50:50 or 98:2 mix with Pic Use rate similar to MB
  6. Non-treated
  7. MIDAS MB
  8. MIDAS EUP (Experimental Use Permit) 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.
  9. MIDAS 350 lb/A Broadcast LDPE VIF
  10. MIDAS Broadcast rate of 98:2 under high barrier mulch Spring: 100 lb Fall: rate needed above label Broadcast rate of 50:50 under high barrier mulch Spring: 175 to 200 lb Fall: rate needed is above label
  11. EUP was in effect for 2008, labeled late spring early summer 2009? DMDS (Paladin)
  12. EUP 2008, labeled 2009? 79:21 mixture with chloropicrin. Same application procedures as MB. DMDS (Paladin)
  13. EUP 2008, labeled 2009? 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. DMDS (Paladin)
  14. Non-treated
  15. DMDS MB
  16. Percent yellow nutsedge control at harvest as impacted by DMDS rate. TyTy, GA 2008.* 98 a 50 G 30 G 40 G DMDS Rate 100 a 99 a 98 a 60 G
  17. Percent large crabgrass control at harvest as impacted by DMDS rate. TyTy, GA 2008.* 50 G 30 G 40 G DMDS Rate 75 a 66 b 49 c 60 G 33 d
  18. EUP 2008, labeled 2009? 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 DMDS (Paladin)
  19. DMDS 60 G, Blockade DMDS 70 G, LDPE
  20. DMDS (Paladin) EUP 2008, labeled 2009? 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 and cost must be addressed.
  21. Telone/Pic/Vapam Labeled, strongly encouraged to try for spring applications
  22. Telone II fb Chloropicrin fb Vapam 2006 2004
  23. MB 3 Way
  24. Number of Nutsedge Plants/A with MB Alternatives in Pepper. Spring 2007.*
  25. Number of Amaranth Plants/A with MB Alternatives in Pepper. Spring 2007.*
  26. MB, MIDAS, DMDS application 8” deep
  27. Telone II Application 12 to 14 “ deep
  28. Chloropicrin placed 8 inches deep
  29. Note moisture and compaction
  30. Metam Application
  31. 1. Do I need Telone, Pic, and Vapam? Other Things I Need To Know
  32. Do I need Telone, Pic, and Vapam? how many crops? what crops? what weed pressure? what disease pressure? If you don’t use all 3 can you sustain success? Other Things I Need To Know
  33. Telone II fb Vapam LDPE mulch V4-05, 60 DAT Telone II fb Pic LDPE mulch Telone II fb Pic fb Vapam LDPE mulch
  34. 2. Can I apply my Telone and chloropicrin together (C35 or Pic Chlor 60)?? Other Things I Need To Know
  35. 2. Can I apply my Telone and chloropicrin together (C35 or Pic Chlor)?? Vapam = 4 inches Chloropicrin = 8 inches Telone = 12 inches Ideal Placement Other Things I Need To Know
  36. Telone + Chloropicrin (100 lb) followed by Vapam Pic 8 “ deep Pic 12 “ deep
  37. 3. Interval between fumigating and planting??? Other Things I Need To Know
  38. VIF LDPE Telone II fb chloropicrin Transplanted 21 DAT
  39. 4. Do we need alternative mulch with 3-WAY? Other Things I Need To Know
  40. Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2007. Plots were 1 bed by 50 feet, evaluations are at pepper harvest. 93 a 99a
  41. Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2007. Plots were 1 bed by 50 feet, evaluations are at pepper harvest. 93 a 99a 75b 82 b
  42. 5. Spring vs. fall application in GA??? Other Things I Need To Know
  43. Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Spring 2008. 99a Plots were 1 bed by 50 feet, evaluations are at pepper harvest. Soil temp 60 F. 99 a 99 a 99 a 99a
  44. Percent Purple Nutsedge Control by MB Alternative Systems. Ponder, Fall 2007. 87 ab 98a 93ab 85 b 70 c Plots were 1 bed by 50 feet, evaluations are at pepper harvest. Soil temp 93 F.
  45. Other Things I Need To Know 6. Control weeds before and IMMEDIATELY after the crop is produced *The goal is to eliminate seed or tuber production….glyphosate is more effective than paraquat on nutsedge, tillage great option after last crop on mulch.
  46. Comparing MB Alternatives Mulch - + - Smell - + + Nutsedge + +/- + Annual grasses - + + Broadleaf weeds - + + Application Procedure + - + DMDS 3-WAY MIDAS
  47. Bigger Issue than Loss of MB?
  48. Plasticulture – BEST CASE Reduce GA farm income: $20.4 mil Reduce output value: $73.1 mil Reduce labor income: $35.1 mil Eliminate 775 workers
  49. BAREGROUND – BEST CASE Eliminate production dependent on fumigants
  50. Bigger Issue than Loss of MB?
  51. Bigger Issue than Loss of MB? BUFFER RESTRICTIONS FOR ALL FUMIGANTS
  52. Fumigant RED’s Buffer distances to homes or occupied structures Right-of-way buffer zones Buffer zones adjacent to areas treated the previous day Respiratory requirements Warning zones Notification of state agency Fumigant management plan
  53. Buffer distances to homes or occupied structures Right-of-way buffer zones Buffer zones adjacent to areas treated the previous day Respiratory requirements Warning zones Notification of state agency Fumigant management plan Fumigant RED’s
  54. Address the variables actually impacting gas emissions! Soil moisture Soil texture Soil temperature Soil compaction Mulch types Application procedures Research Objectives
  55. Questions or Comments?