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MH Free Tobacco

MH Free Tobacco.

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MH Free Tobacco

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  1. MH Free Tobacco Trials were conducted in Jessamine County to study the mechanical application of sucker control chemicals that do not contain Maleic Hydrazide. Although initial results were encouraging, none of the treatments provide acceptable control in the end. Control has been well documented with methods that run Butralin, Flupro or Prime+ down the stalk. However, such methods are slower and labor intensive and not likely to be adopted by larger growers.

  2. Spraying with Coarse Nozzles

  3. MH Free Tobacco Trial

  4. 2005 Burley Tobacco Sucker Control Trial UKREC, Princeton, KY Andy Bailey Extension Tobacco Specialist Univ. of KY / Univ. of TN

  5. ‘TN 90’ burley Set May 25, 2005 40” x 32” plant spacing 4900 plants/A 1st topping July 26 Uneven, so Royal Tac M applied at 2 gal/A down the stalk to topped plants in all plots 2nd and final topping July 31 All treatments applied Aug. 5 Over-the-top straight boom coarse spray with TG-5 nozzles, 20” spacing, 50 GPA Treatments: Untreated check (TNS) Royal MH-30 (2 gal/A) Royal MH-30 (1.5 gal/A) Royal MH-30 (1.5 gal) + Butralin (0.5 gal) Royal MH-30 (1.5 gal) + Flupro (0.5 gal) Royal MH-30 (1 gal) + Butralin (0.5 gal) + Royal Tac M (2 gal) Royal MH-30 (1 gal) + Flupro (0.5 gal) + Royal Tac M (2 gal) Butralin (0.5 gal) Flupro (0.5 gal) Sucker Control Trial for Burley TobaccoUKREC, Princeton, KY - 2005

  6. Sucker Control Trial for Burley TobaccoUKREC, Princeton, KY - 2005 • RCBD design with 4 replications • Plots 4-rows, 40 ft. long (60 plants/plot) • All data collected from center 2 rows • 30 plants/plot • Data collected: • Sucker control: 4.5 wks after topping (just prior to harvest) • Visual % sucker control • Green sucker weight • 30 plants per plot on trts 2-9 • 6 plants per plot on trt 1 (TNS), extrapolated for 30 plants • Cured leaf yield (4 stalk positions) • Grade Index and Revenue (based on 2004 grade and price support)

  7. Sucker Control 4.5 wks after toppingUKREC, Princeton, KY - 2005

  8. LSD0.05 = 74 133 206 55 303 (total) Total Yield (lbs/A): 1537 2013 1945 1947 1738 2016 1942 1414 1745 Yield (lbs/A) Butra 0.5 Flupro 0.5 MH + Flupro 1.5+0.5 MH + Butra 1.5+0.5 MH+ Butra+ RTM 1+0.5+2 MH+ Flupro+ RTM 1+0.5+2 MH 1.5 gal TNS MH 2 gal Burley Tobacco YieldUKREC, Princeton, KY - 2005

  9. LSD(0.05) = 608 Grade Index: LSD(0.05) = 4.7 56.9 60.0 57.3 60.0 56.5 60.9 56.2 53.3 58.1 Gross Revenue ($/A) Butra 0.5 Flupro 0.5 MH + Flupro 1.5+0.5 MH + Butra 1.5+0.5 MH+ Butra+ RTM 1+0.5+2 MH+ Flupro+ RTM 1+0.5+2 MH 1.5 gal TNS MH 2 gal Burley Grade Index and RevenueUKREC, Princeton, KY – 2005*Grade Index and Revenue based on 2004 federal grade and support price for Type 31 burley tobacco.

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