![]() Adult Japanese beetle, Popillia japonica Newman. The five patches of white hairs on each side of the abdomen, and one pair on the last abdominal segment distinguish Popillia japonica from all other similar looking beetles.įigure 3. It is generally metallic green, with bronze or coppery-brown wing covers that do not completely cover the abdomen. The following description of Popillia japonica biology is based on the detailed account by Fleming (1972).Īdult: The adult is an attractive and broadly oval beetle, 8 to 11 mm long (1/3 to 1/2 inch) and 5 to 7 mm (~1/4 inch) wide with females normally being larger than males. Grass turf damaged by larvae of the Japanese beetle, Popillia japonica Newman. The expanding area of turfgrass has also provided excellent breeding ground for the beetles whose grubs continue to be the most damaging pest of turf in the northeastern U.S. Of the states in the southern region, climatological studies predict that it will establish in all states bordering the Gulf of Mexico (Johnson and Lyon 1991) although the beetle still remains unable to establish in Florida.įavorable climate, availability of wide variety of host plants, and lack of important natural enemies have influenced the spread of Japanese beetle in the United States (Fleming 1972). ![]() Despite regulatory efforts, by 2002 it had become established in at least 30 states ( status map)( More detailed status map). Although the outbreaks in California, Oregon, and Nevada have reportedly been eradicated with chemigation (CABI 2008). In more recent studies, it has also been found in Texas, South Dakota, Washington, North Dakota, as well as a few spots in California, Oregon, and Nevada. Since the first detection in the United States in a nursery near Riverton, New Jersey in 1916, it has spread to many states east of the Mississippi River (except Florida), as well as parts of Wisconsin, Minnesota, Iowa, Missouri, Nebraska, Kansas, Arkansas and Oklahoma. Outside of its native Japan, Popillia japonica is found in China, Russia, Portugal, Canada and the USA (CABI 2009). Kelley, Vermont Department of Forests, Parks and Recreation, Distribution (Back to Top) Adult Japanese beetles, Popillia japonica Newman, congregate to feed on foliage and mate. Currently the Japanese beetle is the most widespread pest of turfgrass and costs the turf and ornamental industry approximately $450 million each year in management alone (Potter and Held 2002).įigure 1. The larvae, commonly known as white grubs, primarily feed on roots of grasses often destroying turf in lawns, parks, and golf courses. ![]() Leaves are typically skeletonized or left with only a tough network of veins. Adult Japanese beetles feed on foliage, flowers, and fruits. It is also a pest of several fruit, garden, and field crops, and has a total host range of more than 300 plant species. The Japanese beetle, Popillia japonica Newman, is a widespread and destructive pest of turf, landscape, and ornamental plants in the United States. Scientific name: Popillia japonica Newman (Insecta: Coleoptera: Scarabaeidae) Introduction - Distribution - Description - Life Cycle - Host Plants - Damage - Management - Selected References Introduction (Back to Top) ![]()
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