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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 Two Wisconsin Counties added to Gypsy Moth (Lymantria dispar) quarantine
Date posted: 05/16/2011
Contact: JoAnn Cruse, APHIS State Plant Health Director for Wisconsin (608) 231-9553 or Julie Spaulding, National Program Manager (301) 734-5332
The Animal and Plant Health Inspection Service (APHIS) expanded its gypsy moth (GM), Lymantria dispar, quarantine area to include Jackson and Price Counties, Wisconsin. The GM populations for these areas have been increasing in recent years and reached the threshold level to trigger the quarantine in 2010.

The Federal Order establishes Jackson and Price Counties as quarantine areas in order to prevent the further spread of GM. Effective immediately, all interstate movement of GM-regulated articles from Jackson and Price Counties, Wisconsin, must be handled in accordance with the attached Federal Order. A Federal quarantine of less than the entire State is possible when the State establishes an intrastate quarantine that mirrors Federal requirements for interstate movement.

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. This Federal and State partnership continues to work successfully to prevent the establishment of GM outside of the quarantine area due to human-assisted movement of the pest. We appreciate the cooperative relationship with the State of Wisconsin in the effort to prevent the spread of GM.

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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