Hot and humid weather increases the chance for disease to pop up in the wheat crop. University of Minnesota Extension plant pathologist Madeleine Smith says bacterial leaf streak has been showing up in grains impacted by recent hail storms. With high humidity, Septoria has also been prevalent in late growth stages of the crop. In addition, many portions of the state have been at risk for developing fusarium head blight. “Growers can spray at early flowering for that disease. In instances where they haven’t been able to get in fields due to rain, spraying can occur four-to-seven days after. However, farmers should watch pre-harvest intervals on labels.”
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