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Sucker Control in Burley Tobacco with and without MH

Sucker Control in Burley Tobacco with and without MH. Recommendations to Reduce MH Residue. Reduce MH rate and add a local systemic 1.5 gal MH + 0.5 gal Butralin, Flupro or Prime+ Use Coarse nozzles TG-3 or TG-5 full cone nozzles. Application. Coarse nozzles

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Sucker Control in Burley Tobacco with and without MH

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  1. Sucker Control in Burley Tobacco with and without MH

  2. Recommendations to Reduce MH Residue • Reduce MH rate and add a local systemic • 1.5 gal MH + 0.5 gal Butralin, Flupro or Prime+ • Use Coarse nozzles • TG-3 or TG-5 full cone nozzles

  3. Application • Coarse nozzles • TG-5 / CE-5 or equivalent at 4-4.5 mph • TG-3 / CE-3 or equivalent at 2.5-3 mph

  4. Influence of Sucker Control Across Four Location on Burley Tobacco Yield Locations = Bath, Knox, Jackson & Pendleton LSD 0.05 = 177

  5. Effects of Application of MH by Coarse vs Fine Nozzles on Yield of Burley Tobacco

  6. Average MH Residues by State1997-2004 Limited sample numbers on all but KY and TN 2000 - 2004 values are from warehouse sales only

  7. Range of MH Residues in Kentucky for 1997 - 2004 Low < 41, Medium = 41-80, High = 81-120, Very High = 120 - 200, Extremely High >200 ppm

  8. Higher yields Better returns Improved sucker control Lower MH residue Extended Control 5-7 wks Rain safety after 2 hrs Not as weather dependent No cover crop concern No ground sucker concern Improved grower confidence Produces darker cured leaf Higher Cost Advantages - Disadvantages

  9. MH Free Tobacco

  10. MH Free Tobacco Trial

  11. MH Free Tobacco TrialObservations • Fair to good control for first 10 to 14 days • No difference between Prime +, Butralin, or Flupro observed • “Escapes” common at the top of plant • Up to 2 or 3 suckers per plant • Three nozzle arrangement slightly better • Must be kept directly over the row • Poor control when off row

  12. Each Leaf Direct Sucker Material to the Stalk • 3/8th Phyllotaxy • How leaves are arranged on the stalk

  13. Successful Methods • Hand • Jug method • Backpack • High Clearance Sprayer • Drop Lines

  14. Workable Methods vs. Labor

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