USDA. FS. Northern Research Station.

The Alien Forest Pest Explorer (AFPE) is an interactive web tool which provides detailed spatial data describing pest distributions and host inventory estimates for damaging, non-indigenous forest insect and disease pathogens currently established in the U.S. The database is maintained as a joint effort of Purdue University, the U.S. Forest Service Northern Research Station, and the U.S. Forest Service Forest Health Protection.

United States Department of Agriculture. USDA Climate Hubs.

The Japanese beetle (Popillia japonica Newman) is a highly destructive plant pest of foreign origin. It was first found in the United States in 1916 and has since spread to most states east of, and immediately to the west of, the Mississippi River. It has also spread to some western States, but tough regulations and careful monitoring have prevented its establishment elsewhere. The Japanese beetle has become a serious plant pest and a threat to American agriculture.

Scientists with USDA’s ARS and APHIS have developed an integrated pest management (IPM) program that combines biological, cultural, and chemical strategies. In support of this plan, the Midwest Climate Hub Fellow, Dr. Erica Kistner-Thomas modeled how climate change may impact the distribution and voltinism (generations produced per year) of the Japanese beetle. Model projections indicate increases in temperature would enable northward range expansion across Canada while simultaneously shifting southern range limits in the United States northward. For more on Erica’s work, see: The Potential Global Distribution and Voltinism of the Japanese Beetle (Coleoptera: Scarabaeidae) Under Current and Future Climates.

University of Georgia. Center for Invasive Species and Ecosystem Health.

Provides state, county, point and GIS data. Maps can be downloaded and shared.

USDA. APHIS. PPQ. CPHST. Identification Technology Program.

Washington State Department of Agriculture.

Washington State Department of Agriculture (WSDA) detected two Japanese beetles near Grandview and one near Sunnyside in 2021. Additionally, a resident reported numerous Japanese beetles devouring her roses in Grandview that summer.

Japanese beetles would pose a serious threat to farms, gardens, and the environment if they were to become established in Washington State. Please report any suspected sightings of Japanese beetle at PestProgram@agr.wa.gov or 1-800-443-6684. See WSDA's Interactive Japanese Beetle Response Map.

California Department of Food and Agriculture. Plant Health and Pest Prevention Services Division.

USDA. APHIS. Plant Protection and Quarantine.

USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.

USDA. APHIS. Plant Protection and Quarantine.