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Eric P. Prostko
Professor and Extension Weed Specialist
University of Georgia

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TABLE OF CONTENTS
  1. Grain Sorghum Weed Control Update - 2017
  2. Grain Sorghum Weed Control
  3. Weed Control in Grain Sorghum - 2016
  4. Weed Control in Grain Sorghum - 2016
  5. Huskie Injury on Sorghum
  6. Zest 75 WDG/Inzen Grain Sorghum
  7. Weed Control in Inzen Sorghum - 2014
  8. Weed Control in Inzen Grain Sorghum - 2016
  9. Zest Injury on Inzen Grain Sorghum
  10. Don't Plant Sorghum in Fields Treated with Reflex in the same year!!!!
  11. Grain Sorghum - Harvest Aids
  12. Sunflower Weed Control
  13. Sunflowers Acres in Georgia
  14. What is labeled? (not much)
  15. Consider Cultivation
  16. Clearfield Sunflower Weed Control Results
  17. Prowl H2O @ 2 pt/A + Spartan @ 4oz/A (PRE)
  18. Prowl H2O @ 2.1 pt/A + Spartan 4F @ 4oz/A (PRE)
  19. Prowl H2O @ 2 pt/A (PRE) + Beyond @ 4oz/A + 80/20 + UAN (POST)
  20. Prowl H2O @ 2.1 pt/A (PRE) + Beyond @ 4oz/A + 80/20 + UAN (POST)
  21. Dual Magnum @ 1.33 pt/A (PRE) + Beyond @ 4 oz/A + 80/20 + UAN (POST)
  22. Harvest Aids for Sunflowers
  23. Canola Weed Control
  24. Canola Acres in Georgia
  25. Canola Weed Management
  26. Do not plant canola is fields treated this year with the following herbicides:
  27. Clearfield Canola (5525CL) Response to Reflex - 2015/2016
  28. Clearfield Canola (5525CL) Response to Strongarm - 2015/2016
  29. Clearfield Canola (5525CL) Response to Strongarm - 2015/2016
  30. Current UGA Canola Weed Control Research
  31. Henbit and Ryegrass Control?
  32. Canola Weed Control - 2015/2016
  33. Canola Weed Control - 2015/2016
  34. Command 3ME Injury on Canola - 2 WAT
  35. Registration Status for Command
  36. Sesame Weed Control
  37. Sesame Acres in Georgia
  38. Sesame Weed Control
  39. Weed Control in Sesame - 2015
  40. Sesame Demo - August 11, 2015
  41. Sesame Demo - September 9, 2015
  42. Sesame Demo - October 8, 2015
  43. Sesame - 2016 - Dual Magnum 7.64EC - PRE
  44. Sesame - 2016 - Dual Magnum 7.64EC - 3 DAE
  45. QUESTIONS?



SLIDE CONTENTS
  1. GRAIN SORGHUM WEED CONTROL UPDATE – 2017 Eric P. Prostko, Ph.D. Professor and Extension Weed Specialist Dept. Crop & Soil Sciences
  2. GRAIN SORGHUM WEED CONTROL Start clean! Concep treated seed Dual Magnum or Warrant (PRE) Atrazine (POST) or Huskie + ATZ (POST) Paraquat (Hooded sprayer) Mechanical Cultivation
  3. Weed Control in Grain Sorghum – 2016 NTC Warrant (PRE) Atrazine + COC (POST) Dual Magnum (PRE) Atrazine + COC (POST) SG-02-16 May 27 51 DAP
  4. Weed Control in Grain Sorghum – 2016 Dual Magnum – 16 oz/A (PRE) Huskie – 13 oz/A (POST) Atrazine – 16 oz/A (POST) AMS (2.5% v/v) NIS (0.25% v/v) NTC SG-02-16 May 27 51 DAP
  5. Huskie Injury on Sorghum
  6. Zest™ 75 WDG/Inzen™ Grain Sorghum Dupont Nicosulfuron (Accent) NON-GMO ONLY on Dupont Inzen™ traited grain sorghum ADVANTA (Alta) Seed (???) Limited performance data for SE 0.67 – 1.33 oz/A (75WDG) Up to 20” tall sorghum Tank-mix with atrazine COC (1% v/v) 28% or 32% UAN (2 qt/A) Dual, Warrant, or Cinch (PRE) Concep treated seed GA Label in November 2016
  7. Weed Control in Inzen™ Sorghum - 2014 SG-01-14 June 19 41 DAP NTC Dual II Magnum 7.62EC @ 16 oz/A – PRE Zest 0.33SC @ 12 oz/A – 31 DAP Atrazine 90DF @ 13.3 oz/A – 31 DAP COC @ 1% v/v – 31 DAP
  8. Weed Control in Inzen™ Grain Sorghum - 2016 SG-01-16 May 18 42 DAP NTC Cinch 7.64EC @ 16 oz/A – PRE Zest 0.33SC @ 12 oz/A – 33 DAP Atrazine 4L @ 32 oz/A – 33 DAP COC @ 1% v/v – 33 DAP AMS Xtra @ 2.5% v/v – 33 DAP
  9. Zest Injury on Inzen Grain Sorghum SG-01-16 May 18 9 DAT
  10. Don’t Plant Sorghum in Fields Treated with Reflex in the same year!!!!
  11. GRAIN SORGHUM – Harvest Aids Initial moisture was 24.4% Source: Olson et al. 2001
  12. Sunflower Weed Control Eric P. Prostko Extension Weed Specialist
  13. Sunflowers Acres in Georgia FSA Crop Acreage Reports
  14. What is labeled? (not much) PPI Sonalan or Treflan PPI or PRE Prowl, Dual Magnum, Spartan ($400/gal = $9.38-12.50/A @ 3-4 ozs/A) POST Arrow, Assure II, Select, Poast, SelectMax (grasses only) Beyond (imazamox) only on Clearfield hybrids Beyond same family as Cadre, Pursuit, and Scepter Beyond costs about $525/gal (4 ozs/A = $16.41/A) $157/bag (200,000 seed ~ 10 acres) = $15.70/A Clearfield sunflower hybrids are not GMO’s Hooded Sprayer Aim 2EC @ 1-2 oz/A + COC @ 1% v/v Pigweeds must be 4” or less
  15. Consider Cultivation
  16. Clearfield Sunflower Weed Control Results Clearfield sunflower hybrids that I have worked with since 2003 include the following: Mycogen 8N429CL Mycogen 8N386CL Mycogen 8H419CL Dekalb DKF 3880CL
  17. NTC Prowl H2O @ 2 pt/A + Spartan @ 4 ozs/A (PRE) 2004 (7 WAP)
  18. NTC Prowl H2O @ 2.1 pt/A Spartan 4F @ 4.0 oz/A PRE 2006 (7 WAP)
  19. NTC Prowl H2O @ 2 pt/A (PRE) Beyond @ 4 ozs/A + 80/20 + UAN (POST) 2004 (7 WAP)
  20. NTC Prowl H2O @ 2.1 pt/A Spartan 4F @ 4.0 oz/A PRE 2006 (7 WAP) Prowl H2O @ 2.1 pt /A (PRE) Beyond @ 4 ozs/A + 80/20 + UAN (POST)
  21. NTC Dual Magnum @ 1.33 pt/A (PRE) Beyond @ 4 ozs/A + 80/20 + UAN (POST) 2004 (7 WAP)
  22. Harvest Aids for Sunflowers Gramoxone (paraquat) Roundup (glyphosate) Sodium chlorate Sharpen (saflufenacil)
  23. Canola Weed Control
  24. Canola Acres in Georgia Source: FSA Crop Acreage Reports
  25. Canola Weed Management consider herbicide residues from previous crop Optimum Planting Date/Fertility Use Treflan if you can Clearfield Canola + Beyond may be best overall legal option Critical period for weed control in canola is 4 leaf stage (17-38 DAP)
  26. Do not plant canola is fields treated this year with the following herbicides: Reflex Prefix Staple (could plant Clearfield*) Cadre (could plant Clearfield*) Steadfast Q (maybe Clearfield*?) Strongarm (maybe Clearfield*?) Envive (could plant Clearfield*) Classic (could plant Clearfield*) Envoke (could plant Clearfield*) Diuron (???) *Some crop stunting may still likely occur.
  27. Clearfield Canola (5525CL) Response to Reflex – 2015/2016 CAN-02-15 11/11/2015 30 DAT NTC Reflex 2SL @ 8 oz/A Reflex 2SL @ 4 oz/A Reflex 2SL @ 2 oz/A
  28. Clearfield Canola (5525CL) Response to Strongarm – 2015/2016 CAN-02-15 11/23/2015 42 DAT NTC Strongarm 84WG @ 0.225 oz/A (PRE)
  29. Clearfield Canola (5525CL) Response to Strongarm – 2015/2016 CAN-02-15 11/11/2015 30 DAT Strongarm 84WG @ 0.225 oz/A (PRE)
  30. Current UGA Canola Weed Control Research Howard F. Schwartz, Colorado State University, Bugwood.org
  31. Henbit and Ryegrass Control? ** Command and Dual Magnum are NOT yet labeled for use in canola grown in GA. Research is underway to evaluate crop and weed response.
  32. Canola Weed Control – 2015/2016 CAN-01-15 11/11/2015 30 DAT NTC Command 3ME @ 3.5 oz/A - PRE
  33. Canola Weed Control – 2015/2016 CAN-01-15 11/23/2015 42 DAT NTC Command 3ME @ 3.5 oz/A - PRE
  34. Command 3ME Injury on Canola - 2 WAT
  35. Registration Status for Command submitted required information to IR-4 Program in July 2013 Command received an A priority at IR4 – September 2015 IR-4 evaluating non US data for US tolerance.
  36. Sesame Weed Control
  37. Sesame Acres in Georgia Source: FSA Crop Acreage Reports
  38. Sesame Weed Control The only herbicide registered for use in sesame in GA is Select Max. Select Max can be applied from 9-16 oz/A + NIS @ 0.25% v/v. Select Max should not be applied during flowering. Dual Magnum is labeled in other states (TX + FL) but not Georgia. Currently, I have conducted only 3 sesame trials in GA. In 1 trial, I observed minimal injury from Dual. In 2 trials, I observed significant sesame stunting/death from Dual (wetter conditions). More work on sesame is needed but there are not enough acres yet in GA to justify a large-scale effort on my part. For every sesame trial I conduct, that is one less peanut, soybean or corn trial that I can conduct.
  39. Weed Control in Sesame - 2015 SM-02-15 June 30 68 DAP NTC Dual Magnum 7.62EC @ 16 oz/A – PRE + Direx 4L @ 32 oz/A – POST (36 DAP) NIS @ 0.25% v/v – POST (36 DAP) Warrant 3ME @ 48 oz/A – PRE + Direx 4L @ 32 oz/A – POST (36 DAP) NIS @ 0.25% v/v – POST (36 DAP)
  40. Sesame Demo – August 11, 2015 19 DAT – Planted/Sprayed July 23 NTC Dual Magnum 16 oz/A Warrant 48 oz/A Direx 32 oz/A 7/23- 0.3” I 7/27 – 0.5” I 7/28 – 0.06” R 7/29 – 0.37” R 7/30 – 0.04” R 7/31 – 0.16” R 8/1 – 0.06” R 8/2 – 0.71” R 8/6 – 1.44” R 8/7 – 0.03” R 8/11 – 1.21” R
  41. Sesame Demo – September 9, 2015 48 DAT – Planted/Sprayed July 23 7/23- 0.3” I 7/27 – 0.5” I 7/28 – 0.06” R 7/29 – 0.37” R 7/30 – 0.04” R 7/31 – 0.16” R 8/1 – 0.06” R 8/2 – 0.71” R 8/6 – 1.44” R 8/7 – 0.03” R 8/11 – 1.21” R NTC Dual Magnum 16 oz/A Warrant 48 oz/A Direx 32 oz/A
  42. Sesame Demo – October 8, 2015 77 DAT – Planted/Sprayed July 23 7/23- 0.3” I 7/27 – 0.5” I 7/28 – 0.06” R 7/29 – 0.37” R 7/30 – 0.04” R 7/31 – 0.16” R 8/1 – 0.06” R 8/2 – 0.71” R 8/6 – 1.44” R 8/7 – 0.03” R NTC Dual Magnum 16 oz/A Warrant 48 oz/A Direx 32 oz/A Dual Warrant Direx
  43. Sesame – 2016 Dual Magnum 7.64EC - PRE 11 oz/A 21 oz/A 43 oz/A SESAME-01-16 June 24, 2016 43 DAT
  44. Sesame – 2016 Dual Magnum 7.64EC - 3 DAE 11 oz/A 21 oz/A 43 oz/A SESAME-01-16 June 24, 2016 38 DAT
  45. QUESTIONS? eprostko@uga.edu www.gaweed.com