Sucker Control in Burley Tobacco with and without MH

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Sucker Control in Burley Tobacco with and without
MH
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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

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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

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Influence of Sucker Control Across Four Location
on Burley Tobacco Yield
Locations Bath, Knox, Jackson Pendleton LSD
0.05 177
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Effects of Application of MH by Coarse vs Fine
Nozzles on Yield of Burley Tobacco
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Average MH Residues by State1997-2004
Limited sample numbers on all but KY and TN 2000
- 2004 values are from warehouse sales only
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Range of MH Residues in Kentucky for 1997 - 2004
Low lt 41, Medium 41-80, High 81-120, Very
High 120 - 200, Extremely High gt200 ppm
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Advantages - Disadvantages

• 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

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MH Free Tobacco
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MH Free Tobacco Trial
Location Day Treatment Boom Nozzle Drought Sucker Control Comments
Home 16 Prime Straight TG-3 Low Fair-Poor Two - Three 4-7" suckers in 1/2 of plants in top
Dodd 16 Butralin Straight TG-3 Moderate Good Occasional 4-7" sucker
Dodd 16 Prime Straight TG-3 Moderate Good Occasional 4-7" sucker
Dodd 16 Butralin 3 nozzle TG-35 Low-Mod Excellent Few suckers
Dodd 16 Prime Straight TG-3 Moderate Good Occasional 4-7" sucker
Creek 9 Prime Straight TG-5 Mod-High Good Occasional 4-7" sucker
By-Pass 15 FA Flupro Straight TG-5 0-Low Poor Two 5-9" in tops of most plants
By-Pass 15 Prime Straight TG-5 0-Low Poor Three or more suckers in tops of most plants
Shop 14 Prime Straight TG-5 0-Low Fair Two - Three 5-9" suckers in 1/3 of plants in top
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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

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Each Leaf Direct Sucker Material to the Stalk

• 3/8th Phyllotaxy
• How leaves are arranged on the stalk

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Successful Methods

• Hand
• Jug method
• Backpack
• High Clearance Sprayer
• Drop Lines

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Workable Methods vs. Labor