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Weed Control Gets More Complicated

Weed Control Gets More Complicated . Jim Martin Extension Weed Scientist. Photo: Mike Smith 8-21-2013. HERBICIDE RESISTANT WEEDS IN KY. * YR of Discovery Based on Confirmation in Lab or Field Tests. Pay attention to weed size. Source: Loux 2011.

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Weed Control Gets More Complicated

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  1. Weed Control Gets More Complicated Jim Martin Extension Weed Scientist Photo: Mike Smith 8-21-2013

  2. HERBICIDE RESISTANT WEEDS IN KY * YR of Discovery Based on Confirmation in Lab or Field Tests

  3. Pay attention to weed size Source: Loux 2011

  4. Factors to Consider on Marestail Control in Soybean • Application Timing: • Fall + Spring • Spring • Utilize Alternative Chemistries to Limit Risk of Developing ALS Resistance. • Flumioxazin (Valor products) • Metribuzin • Saflufenacil (Sharpen, Verdict) • Glufosinate (Liberty) • 2,4-D • Manage Populations in Fallow Areas

  5. Impact of Spray Volume and Weed Size on Waterhemp Control with Liberty and Prefix in LL Soybean Liberty 29 oz/A Prefix 2.33 pt/A a a Hancock CO 2013

  6. Comparing Preemergence Herbicides (Waterhemp Control & Soybean Injury Hancock County Ratings at 3 weeks after Planting LL soybeans 2013

  7. Soybean Injury With Soil-Residual Herbicides(2 Weeks After Application) Crop Injury (%) Warrant Alone Fulton Co 2013

  8. Palmer Control With Soil-Residual Herbicides(7 Weeks After Application) Warrant Control % Fulton County 2013

  9. Shading Impacts Palmer Emergence Fallow (5-16-13) Wheat 7” Row (5-16-13) Wheat Skip Row (6-20-13)

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