The false Japanese beetle, Strigoderma arboricola, may be fairly common in soybean the third and fourth weeks of June. In contrast, the Japanese beetle, Popillia japonica, usually occurs during late July and August and is most likely to be found in Iowa soybean in counties along the Mississippi River or near Cedar Rapids. False Japanese beetles are often noticed by fieldworkers because they have a tendency to land on light-colored clothing or get in ones hair.
Iowa State University
Rice, Marlin E., "False Japanese beetles in soybean" (2002). Integrated Crop Management News. 1759.
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