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Asian Gypsy Moth

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Asian gypsy moth, female in Mongolia
Asian gypsy moth, female in Mongolia - Photo by John Ghent
Scientific Name: 

Lymantria dispar asiatica Vnukovskij, Lymantria dispar japonica (Motschulsky), Lymantria albescens Hori and Umeno, Lymantria umbrosa (Butler), and Lymantria postalba Inoue (APHIS 2015)

Common Name: 

Asian gypsy moth (AGM)

Native To: 

L. asiatica is native to temperate Asia east of the Ural Mountains; L. d. japonica, L. albescens, L. umbrosa, and L. postalba are native to Japan (Pogue and Schaefer 2007)

Date of U.S. Introduction: 

First discovered in the Pacific Northwest in the 1991 (APHIS 2015)

Means of Introduction: 

From infested cargo in ships (APHIS 2015)


Eradicated in North Carolina and Washington. It is a voracious pest of trees that poses a major threat to forest habitats in North America. (APHIS 2015)

Current U.S. Distribution: 
Not currently established

Distribution / Maps / Survey Status

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

Federally Regulated


University of Georgia. Center for Invasive Species and Ecosystem Health.
University of Georgia. Center for Invasive Species and Ecosystem Health.
Australian Plant Biosecurity Cooperative Research Centre. Pests and Diseases Image Library.


Google. YouTube;Oregon State University. Extension Service.

Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Asian Gypsy Moth.

Council or Task Force

Alberta Invasive Species Council (Canada).

See also: Fact Sheets for more information about individual invasive species, including those listed as "Prohibited Noxious" and "Noxious" under the Alberta Weed Control Act

Nature Conservancy. Don't Move Firewood.
Texas State University System. Texas Invasive Species Institute.
Federal Government
USDA. FS. Northern Research Station.
USDA. Animal and Plant Health Inspection Service.
USDA. APHIS. Plant Protection and Quarantine.
International Government
New South Wales Department of Primary Industries (Australia).

Canadian Food Inspection Agency.

State and Local Government

Washington State Department of Agriculture.

Cornell University. New York State Integrated Pest Management Program.
See also: Invasive Species & Exotic Pests for more factsheets