Japanese Beetle

  • Japanese Beetle
    Japanese Beetle
  • Japanese Beetle
    Japanese Beetle
  • Larvae
    Larvae
  • Damage to Leaves
    Damage to Leaves

Japanese Beetle

Popillia japonica

Order: 
Coleoptera
Family: 
Scarabaeidae

Report a Sighting

Description

Scarab beetle, similar to a June beetle/June bug. One year lifecycle. Metallic green head and abdomen with brown elytra. Five white tufts similar to hair along the edges of elytra. About 12 mm long. White grub larvae have gray abdomens and brown heads. Learn more here.

Hosts

Larvae are found feeding on turf roots. Among the plants most commonly damaged are rose, grape, crabapple, and beans, but will feed on over 300 plant species.

Pathway of Introduction and Spread

First found in New Jersey in 1916; originally from Japan. Spreads through the movement of infested nursery stock, as hitchhikers on vehicles or in cargo.

Symptoms


Skeletonized leaves and defoliation of host plants. Root damage to lawns caused by the larvae.

Location in Nebraska

Positive traps found in several Nebraska counties across the state (2011). It is distributed throughout the U.S. (except the Southeast).

Photo Credits: 

David Cappaert, Michigan State University, Bugwood.org
Clemson University – USDA Cooperative Extension, Bugwood.org
Jerry A. Payne, USDA Agricultural Research Service, Bugwood.org
Mike Reding and Betsy Anderson, USDA Agricultural Research Service, Bugwood.org