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Weeds Expected to Take Height
Posted on April 24, 2012 by Syngenta
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More challenges may be emerging as a result of the warmer weather this winter. Overgrown weeds, spurred by the mild winter, may create a tough challenge this season, say researchers at Purdue University. Typically, weeds are inactive through the winter, but, this year, they have continued to grow throughout the traditionally cold months. Uncontrolled weeds can create a slew of setbacks for this year’s crop.
Consistently warmer temperatures allow winter annuals to germinate. When these annuals have had a lot of growth through the winter—growth that doesn’t usually happen during those months—the soil takes longer to dry and warm up due to weed cover. Consequently, cold, wet soil and overgrown weeds can create several unpleasant problems:
·         Makes it difficult to get sprayers out for burndown treatments
·         Hinders seed germination
·         Delays crop production
·         Encourages insect populations that live off of these weeds
According to Ohio State and Purdue Extension specialists, marestail is going to be especially problematic for soybean growers this season. Particularly in Ohio, marestail is one of the most abundant and herbicide-resistant weeds that growers deal with.
The best solution is to take action early. Assess the size of the weeds, and if fields are dry enough by early spring, begin a paraquat-based burndown treatment, such as Gramoxone® brand herbicides. And to take a proactive approach to early-season weeds, an application of a pre-emergence residual herbicide, such as Prefix® herbicide, can offer up to five weeks of yield protection through control of highly competitive broadleaf and grass weeds.
©2012 Syngenta. Important: Always read and follow all bag tag and label instructions before buying or using Syngenta products. The instructions contain important conditions of sale, including limitations of warranty and remedy. All crop protection products and seed treatments may not be registered for sale or use in all states or counties. Please check with your state or local extension service before buying or using Syngenta products. Gramoxone Inteon, Gramoxone SL, and Gramoxone SL 2.0 are Restricted Use Pesticides. Gramoxone®, Prefix® and the Syngenta logo are registered trademarks of a Syngenta Group Company.
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