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Official Pest Reports

Official Pest Reports are provided by National Plant Protection Organizations within the NAPPO region. These Pest Reports are intended to comply with the International Plant Protection Convention's Standard on Pest Reporting, endorsed by the Interim Commission on Phytosanitary Measures in March 2002.

USA Flag Gypsy Moth (Lymantria dispar): Counties in Minnesota and Wisconsin added to the regulated area
Date posted: 08/22/2014
Contact: Paul Chaloux, Gypsy Moth National Policy Manager, at 301-851-2064.
Effective immediately, the Animal and Plant Health Inspection Service (APHIS) is adding Cook and Lake Counties in Minnesota and Iowa County in Wisconsin to the list of regulated areas for gypsy moth (GM). The GM population in these three counties has reached the threshold level to trigger the regulated area.

To prevent the further spread of GM, a Federal Order establishes Cook and Lake Counties in Minnesota and Iowa County in Wisconsin as a regulated area. Effective immediately, all interstate movement of GM-regulated articles from these counties must be handled in accordance with the Federal Order. The Minnesota Department of Agriculture and Wisconsin have established a parallel state quarantine.

GM is a highly destructive insect of approximately 300 species of trees and shrubs. The GM program prescribes conditions for the interstate movement of regulated articles from GM quarantine areas. The federal and state partnership works to limit the establishment of GM outside the quarantine area that could result from human-assisted movement of the pest. We appreciate the cooperative relationship with Wisconsin and Minnesota in the effort to limit the spread of this pest.

Under IPPC standards, Lymantria dispar is a pest that is present: only in some areas and subject to official control in the United States.

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