Official Pest Report

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.

Gypsy Moth (Lymantria dispar) - Domestic quarantine of LaPorte County, Indiana

Country: United States

Title: Gypsy Moth (Lymantria dispar) - Domestic quarantine of LaPorte County, Indiana

Gary Simon, APHIS’ State Plant Health Director, at (765) 497-2859 or Julie Spaulding, National Program Manager, at (301) 734-5332

Report: The Animal and Plant Health Inspection Service (APHIS) expanded its gypsy moth (GM), Lymantria dispar, quarantine area to include LaPorte County, Indiana. The GM populations for this area reached the threshold level to trigger the quarantine between 2009 and 2010.

The Federal Order establishes LaPorte County as a quarantine area in order to prevent the further spread of GM. Effective immediately, all interstate movement of GM-regulated articles from LaPorte County, Indiana, must be handled in accordance with the 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. The State of Indiana has already established domestic quarantines for this area.

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.

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

Posted Date: March 3, 2011, 9 a.m.