Soybean Gall Midge was first discovered in 2018 and has been relatively unseen in the northern Red River Valley. University of Minnesota Extension Specialist Dr. Robert Koch said the soybean gall midge has shown resistance to pesticides and cold temperatures. “My colleagues have evaluated seed and foliar treatments, lots of different chemicals, and while there’s some minor impacts to the population, it’s not enough to be a stand alone tool.” Koch said resistant varieties will take time to develop. Predators or parasites may be key to controlling the pest in the future. Speaking at the Best of the Best in Wheat and Soybean Research meetings, Koch said these pests are small, slender flies.
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