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Japanese Beetle Pressure Increases in Southeast IA

August 31, 2020
This agronomic image shows Japanese beetles

Japanese beetles cause harm to the soybean foliage and show increased pressure at Grow MoreTM Experience site in Yarmouth, IA.

Japanese beetles are one of the most common pests seen in recent years in southeast IA. Following a particularly wet spring, the region is enduring a hot, dry summer, which drives up Japanese beetle pressure in soybeans and corn.

The adult beetles are highly mobile and can often be found feeding in large groups on leaf tissue in soybeans. The treatment threshold for Japanese beetle in soybeans is 30% defoliation before bloom, and 20% defoliation after bloom. In corn, the pest may clip back corn silks and prevent pollination of corn ears, resulting in yield loss.

Watch the video below to hear Agronomy Service Representative Zachary Trower discuss common treatments when beetle pressure is high.

Endigo® ZC insecticide offers consistent performance, fast knockdown and extended residual control to keep soybeans fields free from economically damaging pests like Japanese beetles. The 2 complementary modes of action control a broad spectrum of pests, resulting in higher potential yield.

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