Greg Ferguson Discusses Resistant Weeds

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With cotton planting quickly approaching, growers throughout the Mid-South should be focusing on an effective approach for weed control program management. When managing resistant rye grass, marestail and Palmer amaranth, it is essential to begin with a burndown prior to planting and to use multiple residual products with different modes-of-action. Greg Ferguson, Deltapine® Technical Agronomist, in Mississippi, gives growers additional tips on how to best manage resistant weeds.

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Question: What do you recommend cotton growers throughout the Mid-South should focus on when managing tough-to-control weeds?

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GF: The most critical thing in resistant weed areas is to have a plan of what your herbicide program will be. I recommend starting out with a good burndown treatment that has dicamba or 2-4D, specifically I’d recommend dicamba with Roundup PowerMAX®. Then, I’d recommend applying a pre-plant treatment of Reflex® Herbicide two weeks prior to planting. At planting, apply a residual product like Cotoran® in combination with a Gramoxone® brand for a clean start, followed by an early post-emergence treatment of Roundup® agricultural herbicides plus Warrant® Herbicide.

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10; Question: What are some resources growers can utilize when establishing their own weed control program?

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GF: There are many resources available to growers when it comes to understanding weeds in the Mid-South. Utilizing university sites, like http://msucares.com/crops/weeds/index.html can be utilized, as well as your local agronomist and Monsanto Technology Development Representative. Additionally, some of the best post-emergence weed control systems begin with a good pre-emergence system. Roundup Ready PLUS® Weed Management Solutions offer additional recommendations for a successful weed control program.

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With proper herbicide planning, Ferguson said tough to control weeds, like Palmer amaranth, can be managed. For more information, visit www.roundupreadyPLUS.com.

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