Japanese Beetle

Popillia japonica

Adult Japanese beetle
Adult Japanese beetle. Photo courtesy of Bruce Marlin. Licensed under CC BY-SA 3.0.
Japanese beetles are beautiful in appearance but can be destructive pests of many crops, including soybeans and corn.
The Japanese beetle is brown and green in color and has an irridescent appearance. It can be distinguished from similar insects by the distinct white tufts on its abdomen (see photo).
Japanese beetle
Adult Japanese beetle. Note the distinguishing white tufts. Original photo courtesy of Benny Mazur. Licensed under CC BY 2.0.
Japanese beetles cause the most damage to corn by eating fresh silks during early silking. This reduces kernel pollination resulting in reduced yield.
Japanese beetles can cause significant damage to soybeans by feeding on the leaves, resulting in a reduction in photosynthesis.
Japanese beetles can be controlled by many insecticides. Always read and follow all label instructions.