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Japanese beetle in larval stage

 Image credit: David Cappaert, Bugwood.org

Adult Japanese Beetle on a leaf

Image credit: David Cappaert, Bugwood.org

Japanese Beetle (Popillia japonica)

Identification
  • Adults are metallic green and brownish-copper.
  • Larvae are creamy white C-shaped grubs that feed on the roots of turf grass.
Reasons for Control
  • Japanese beetles are a destructive exotic pest that have been long established in the eastern US. A small infestation was discovered in Palisade in 2002 which was eradicated by a cooperative effort led by the UGVPCD.
  • Adults feed on leaves, buds, fruits and flowers of many common garden and landscape plants.
Control Notes
  • UGVPCD is continuing to monitor JB populations and CDA is regulating movement of potential JB infested plants to western CO.