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2012 Grower Meetings: Diversity and Integration; Keys to Surviving in a Palmer World

2012 Grower Meetings: Diversity and Integration; Keys to Surviving in a Palmer World. Stanley Culpepper, University of Georgia, Tifton. Diversity and Integration: Keys to Surviving in a Palmer World. BIOLOGY. Integrated to remain sustainable. Management programs.

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2012 Grower Meetings: Diversity and Integration; Keys to Surviving in a Palmer World

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  1. 2012 Grower Meetings: Diversity and Integration; Keys to Surviving in a Palmer World Stanley Culpepper, University of Georgia, Tifton

  2. Diversity and Integration: Keys to Surviving in a Palmer World BIOLOGY Integrated to remain sustainable Management programs

  3. RR Reduced Tillage Cotton Systems. 2012.

  4. RR Reduced Tillage Cotton Systems. 2012. APPLY VALOR AND/OR DIREX TO EVERY ACRE; MUST BE PALMER FREE AT PLANTING!!!

  5. Valor applied broadcast followed by strip till.

  6. RR Reduced Tillage Cotton Systems. 2012.

  7. RR Reduced Tillage Cotton Systems. 2012. RU + Staple wins 7 out of 10 times!

  8. RR Reduced Tillage Cotton Systems. 2012. Consider direct spraying Warrant mixture if more than 6 leaf cotton!

  9. Roundup + Warrant applied over AGGRESSIVELY growing LARGE cotton. typical ouch

  10. RR Reduced Tillage Cotton Systems. 2012. No brainer…..Suprend great option as well!

  11. RR Reduced Tillage Cotton Systems. 2012.

  12. RR Reduced Tillage Cotton Systems. 2012. Allows 2 residuals at planting instead of 3 to reduce injury. Perfect timing for thrips application! Allows time for activation before PRE breaks down!

  13. Tillage is now a common scene

  14. Percent Palmer Amaranth Control with Reflex 1 pt/A PPI or PRE in 2010. 98 A 99 A 79 B Irrigated Dryland

  15. RR Conventional Tillage Cotton Systems. 2012. Plant as soon after incorporation as possible

  16. Percent Palmer Control with Reflex + Prowl PPI, 2010. TyTy, GA. 38 DAT. 92 a 80 b 3 c Field cultivator Disk Rototiller

  17. None Prowl + Reflex PRE Irrigated May 13 Planted May 14 Irrigated May 19 during emergence Prowl + Reflex PPI - Rototill

  18. Roundup Ready PLUS Cotton Incentive (Up to $22) *Will pay on 2 applications

  19. GR Palmer amaranth control in dryland conservation tillage systems Prowl + Reflex PRE Roundup+ Dual POST Diuron + MSMA PD Prowl + Reflex PRE Ignite+ Dual POST Diuron + MSMA PD

  20. Making the most of your Liberty! • Water volume • Spray tip and pressure • Time of day you spray • Palmer size

  21. MOST IMPORTANT IS TO HAVE PRESSURE AND NOZZLES THAT GENERALTE MEDIUM (300-400 MICRONS)

  22. Late-season Palmer control with Liberty as influenced by time of day. Macon Co. Dryland 97 a 99 a % 50 b 8 c 6.45 am 12 – 1 pm 6:30 – 7:00 pm 12 – 1 am Time of Day for Ignite Applications Ignite POST 1 (5” Palmer), Ignite POST 2 (18 d later), Diuron + MSMA layby

  23. Making the most of your Liberty! Time GPA Biggest pigweed in the field is 3 inches!!!!!!!!!!!!!!!! Nozzle Rate

  24. Controlling Palmer in LL Cotton. 2012.

  25. Six Inch GR Palmer Response to Layby or Hooded Spray Options. Macon, 2012. 96 a 77 b 69 c Direx + MSMA Ignite + Valor Ignite

  26. 2012 Liberty Based Programs • LibertyLink • WideStrike • GlyTol LibertyLink

  27. Percent GlyTol + LL cotton injury from topical applications 7 DAT. Moultrie, 2010 8 leaf cotton 2 a 18 b 0 a 1 a WMax 33 oz Ignite 44 oz WMax + Ignite WMax + Ignite + Dual (1 pt)

  28. Percent GlyTol + LL cotton injury from topical applications 7 DAT. Moultrie, 2010 8 leaf cotton Sequential applications of Liberty and Roundup in 2012 to avoid antagonsim? 2 a 18 b 0 a 1 a WMax 33 oz Ignite 44 oz WMax + Ignite WMax + Ignite + Dual (1 pt)

  29. Six Inch GR Palmer Response to Layby or Hooded Spray Options. Macon, 2012. 95 a 96 a 77 b 69 c Gramoxone + Direx Direx + MSMA Ignite + Valor Ignite

  30. Heavy Residue Deep Turn Adopt Integrated Programs Or You Simply Wont Survive Because of Resistance!!! Cultivate Hand weed

  31. 2006-2010: 92% of growers hand-weeded 52% cotton acres at $23.70/A Photo by A.C. York 2010

  32. Palmer Seed (#/plant) when Chopping Plants at Cotton Layby. 394,100 129,125 36,100 22,400 Not Chopped Chopped at 6 inch Chopped at 1 inch Chopped at soil 2010/2011: Sosnoskie/Grey/Webster/Culpepper

  33. Developing Integrated Programs

  34. Potential Benefits for Georgia Growers • Improved Palmer control • Protect herbicide chemistry • Labor (compared to tillage) • Wind and water erosion • Prevents GR horseweed • Prevents/Lessons GR ryegrass • Moisture conservation • Reduce herbicide inputs • Higher yields on dryland • Protection from EPA • Reduces thrips damage

  35. Potential Challenges for Georgia Growers • Blowout impacting stand • Incorporate herbicides with when strip tilling • Time to get established • Increased fertilizer • Rubber wheel system • Grower comfort

  36. Impact of GR Palmer amaranth on GA. 37 % acres 18 0 Liberty-based Programs

  37. 1.5 pt of 2,4-D Liberty + 1.5 pt of 2,4-D

  38. Clarity 8 oz Liberty + Clarity 8 oz

  39. HPPD Liberty + HPPD

  40. Herbicide Resistance: Will You Survive? 1,089,000 plants per acre 25 plants per square foot emerge = If resistance is one in a billion then you only need 918 acres to find that plant.

  41. Herbicide Resistance: Will You Survive? 1,089,000 plants per acre 25 plants per square foot emerge = DO NOT SPRAY LIBERTY BUT TWICE PER YEAR IN A SOUND PROGRAM!!!

  42. Controlling Palmer Without Killing Cotton With Herbicides! Irrigation Schedule Seedling depth and vigor AT-PLANT HERBICIDES Cotoran Diuron Prowl Reflex Staple Combinations Soil dry or moist at planting?

  43. Irrigation/Herbicide Scheduling(preliminary as much more work is being conducted) DO NOT irrigate 24 hr before or 24 hr after emergence PLANT Irrigate before planting DO NOT irrigate first 36-48 hr?? Irrigate Irrigate

  44. Comments or Questions??

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