AgProfessional (15 October 2015)
This year we — with the help of an assay provided by Pat Tranel and Aaron Hagar, weed scientists at the University of Illinois — have confirmed that at least five counties in Arkansas have populations of pigweed that are resistant to the PPO herbicides (Glyphosate, Blazer, Cobra, Flexstar, etc.) or group 14 family of chemistry. Farmers are therefore recommended to rotate herbicides and particularly move into Bayer's Glufosinate-based LibertyLink program in order to avoid weed resistance.
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