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Effective immediately, the Animal and Plant Health Inspection Service (APHIS) is adding Eau Claire and Richland Counties in Wisconsin to the list of quarantine areas for gypsy moth (GM). The GM populations in these counties have reached the threshold to trigger the quarantine expansion. To prevent the further spread of GM, the attached Federal Order (PDF | 186 KB) establishes Eau Claire and Richland Counties in Wisconsin as quarantine areas. Effective immediately, all interstate movement of GM-regulated articles from Eau Claire and Richland Counties must be handled in accordance with the attached Federal Order. Wisconsin has established a parallel state quarantine.
European Gypsy Moth Resources
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Search HelpUSDA. Animal and Plant Health Inspection Service.
Entomological Society of America.
Names change marks launch of Entomological Society of America (ESA) effort to review, revise problematic insect common names. The ESA has removed “gypsy moth” and “gypsy ant” as recognized common names for two insect species in its Common Names of Insects and Related Organisms List.
The changes are made in conjunction with the launch of a new ESA program to review and replace insect common names that may be inappropriate or offensive. Entomologists, scientists in related fields, and the public are invited to participate in identifying and proposing alternatives for insect common names that perpetuate negative ethnic or racial stereotypes.
Wisconsin Department of Natural Resources.
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
University of Massachusetts Extension. Landscape, Nursery, and Urban Forestry Program.
Missouri Department of Conservation.
See also: For more information about Invasive Tree Pests (insects and diseases) that are not native to Missouri
National Plant Diagnostic Network.
You can become a more effective First Detector by familiarizing yourself with invasive target pests and pathogens known to exist in the U.S. If you think you have encountered one of the species or disease complexes listed, report its presence.
Maryland Department of Natural Resources. Forest Service.
See also: Includes Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland
IUCN. Species Survival Commission. Invasive Species Specialist Group.
USDA. Forest Service; Southern Regional Extension Forestry. Forest Health Program.
See also: Gypsy Moth for more resources
Vermont Agency of Agriculture, Food, and Markets.
Many people in Vermont are encountering gypsy moths (GM) for the first time. This invasive species arrived in the United States over 100 years ago and has been expanding its range ever since. They can be significant defoliators (leaf eaters) of trees and shrubs. They prefer oak trees, but when there are a lot of caterpillars around they will eat any type of leaf, including maple and pine. Vermont has not seen an outbreak of GM since 1991. At that time a fungus called Entomophaga maimaiga became prevalent in the area and significantly decreased the GM population. But the dry weather that we’ve experienced over the last few years has not been good for fungi, and the absence of fungi has allowed the GM numbers to increase.
USDA. ARS. National Agricultural Library.
This collection of publications in NAL's Digital Repository provides access to and addresses a number of topics concerning the gypsy and the related brown-tail moths, from biological control methods to tree banding to quarantine practices. The bulk of the documents were published from 1891 to 1923 by various agencies in the area of the initial infestation, including the State Board of Agriculture for Massachusetts, New York, and Rhode Island, but also include some more modern USDA publications.