Japanese Beetle Popillia japonica Coleoptera: Scarabaeidae: Clemson University Entomology Dept. Mature Adult Larva

Japanese Beetle Popillia japonica Newman, 1838 Native of Japan and Northern China First found in a nursery in Riverton, New Jersey (across from Philadelphia) in 1916 in imported Japanese rootstock Infestation east of the Rockies Iowa added to quarantine list in 2006 Over 400 host plant species

Japanese Beetle in California First trapped at LAX in 1951 Major infestation in 1961 in Sacto Declared eradicated in 1965 Later in Balboa Park and Orangevale Frequently intercepted at airports In CA from May 1 to August 31 trapping near major airports

Japanese Beetle Damage Soybean (skeletonizing leaf) Corn

Japanese Beetle Life Cycle eggs young larvae pupating larva pupa adult adults mating

Japanese Beetle Life Cycle

Japanese Beetle Host Range Over 400 species of broad-leaf plants Acer palmatum Japanese maple Aesculus hippocastanum Horse chestnut Juglans nigra & persica Walnut Malus spp. Apple Platanus acerifolia London PlaneTree Populus nigra italica Lombardy poplar Prunus spp. Most stone fruits Rosa spp. Roses Sorbus spp. Mountain ash Tilia spp. Linden Ulmus spp. Elm Vitis spp. Grapes Turf-grasses – Kentucky bluegrass, perennial ryegrass, tall fescues, and bentgrass Larval stage eats the roots

Japanese Beetle Exclusion