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Gypsy Moth Digest

Gypsy moth photograph from Jim Hanson.The Gypsy Moth Digest is a database containing information about gypsy moth defoliation, and Suppression, Eradication, and Slow The Spread (STS) treatments nationally. Our Forest Health Protection staff collects this data annually and incorporates into the Gypsy Moth Digest. If you use this information, please cite the USDA Forest Service Gypsy Moth Digest as the source.

The current USDA National Gypsy Moth Management program was first described, analyzed and adopted by the USDA Forest Service and the USDA Animal and Plant Health Inspection Service (APHIS) in a programmatic environmental impact statement (EIS) in 1996.  In 2012 an updated supplement to that EIS was approved and currently governs the two agencies financial and technical support for gypsy moth Suppression, Eradication and Slow The Spread activities. Included in the 2012 supplemental EIS (SEIS) are updated human health and ecological risk assessments associated with the gypsy moth program.  View the 2012 SEIS including the risk assessments and the corresponding Record of Decision.

Gypsy Moth Pest Alert: The gypsy moth has been a primary defoliator of hardwoods in the eastern United States since its introduction in 1869. Currently it is considered to be a permanent resident in all or parts of 19 eastern states and the District of Columbia.  Isolated infestations of the insect due to movement of outdoor household articles and commerce in general often occurs.  Such infestations when detected are targeted for eradication.

Aircraft Incidents, 1990-2016: Reports for each of the aircraft incidents which occurred during gypsy moth suppression, eradication, and slow the spread projects nationwide.

National Pest Suppression Tracking (NPST) Reports: A summary report of all Suppression, Eradication and Slow The Spread projects for gypsy moth by year. For a specific year, please click on the links below.

Note: Portable Document Format (.pdf) files need a free reader, available here.

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