In the Midwest, insect pressure varies widely depending on location, weather and cropping practices. But year-in and year-out, some pests tend to dominate more than others. According to Extension entomologists in Indiana, Illinois, Iowa and Nebraska, corn rootworm is by far the region’s worst insect pest for corn. Soybean’s top insect pest is less clear, but the four most often mentioned in the Midwest are soybean aphids, bean leaf beetles, Japanese beetles and spider mites....
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