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Extension > Garden > Diagnose a problem > What insect is this? > Garden Pests > Beetles, bugs, ants, and other insects without obvious wings - 1/4 inch - 1/2 inch long > Japanese beetle

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Japanese beetle

Popillia japonica

Japanese beetle

Jeff Hahn, University of Minnesota Extension

Japanese beetle

Jeff Hahn, University of Minnesota Extension


Description: 1/3 - 7/16 inch long.
Green head and prothorax; copper colored wing covers. Has five tufts of white hair along the sides of the abdomen with two tufts on the tip of the abdomen.

Where/When: Feeds on hundreds of herbaceous and deciduous plant species, including roses and grapes. Adults are present from late June to early September.

Significance: Feeds on leaves, flowers, and fruits causing cosmetic damage and can be injurious to plants when abundant.

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