In the Spring, growers may experience challenges when controlling winter annuals weeds or terminating cover crops with glyphosate-based burndown herbicide programs, specifically when glyphosate is sprayed in cool, cloudy weather conditions or tank mixed with residual herbicides, ATS, or synthetic auxins (issue mostly for grasses).
Every year growers may experience challenges when controlling winter annuals weeds or terminating cover crops with glyphosate, specifically when glyphosate is sprayed in cool weather conditions or tank mixed with atrazine or an atrazine premix.
We’ve received several calls this year about reduced herbicide efficacy, specifically with glyphosate and glyphosate mixtures when sprayed either during cool temperatures or just after a cold spell.
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