University of Minnesota Extension
www.extension.umn.edu
612-624-1222
 Menu  Menu

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

Japanese beetle

Popillia japonica

Japanese beetle

Jeff Hahn, University of Minnesota

Japanese beetle

Jeff Hahn, University of Minnesota


Size: 1/3 - 7/16 inch long

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.

More information on Japanese beetle...

Did this tool help you identify the insect? Tell us.
  • © 2015 Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy