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Angie Peltier

Angie Peltier
Former Extension Educator, Commercial Agriculture

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Hill and Furrow

Current topics about crop production in Western Illinois, including field crops research at the NWIARDC in Monmouth.

How has the mild winter affected weeds?

Posted by Angie Peltier - Weeds

Weed scientists at the University of Illinois are concerned about winter annual weeds this year as the mild winter may not have resulted in as much mortality as in previous years. Additionally, the warm spring weather is allowing these weeds to perk up and start growing earlier than in years past and before you may be ready for them. If you didn't have an aggressive fall weed control program, weeds have the potential to really get away from us, and you may consider walking fields earlier than usual to survey for winter or even spring weeds. Dr. Aaron Hager, weed scientist from the U of I, recommends waiting until weeds have turned green to spray your burn-down herbicide treatment. This is of particular importance in fields that you won't till before planting or that you plan to plant to soybean. Uncontrolled, high populations of winter weeds cause another problem, attracting important agricultural insect pests, like the black cutworm, to your fields.

University of Illinois weed scientist Aaron Hager recently posted an article on herbicide premixes in the online Bulletin entitled, "Multiple vs. Effective Modes of Action": (

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