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The Entomological Society of America has adopted "spongy moth" as the new common name for the species Lymantria dispar. The name refers to the insect's distinctive sponge-like egg masses and is derived from translations of common names used for the insect in its native range and French-speaking Canada.

The primary goal of this toolkit is to provide individuals and organizations adopting "spongy moth" with information about the change, resources needed to implement the name change, and suggestions for communicating the name change to their stakeholders.

If you are moving this year from a location within the gypsy moth quarantine area to a location outside the quarantine area, please inspect outdoor household items for pests. This is a federal requirement for homeowners moving from gypsy moth quarantine areas.

By complying with the law, you may also save a forest. Gypsy moths are destructive, invasive pests! European gypsy moth larvae feed on over 300 plant species including oak, aspen and elm. Gypsy moths have defoliated more than 83 million acres in the United States since 1970. About 70% of susceptible forests have never been infested and are at risk.

Help the United States Department of Agriculture (USDA) stomp out invasive pests this spring! Challenge your detection prowess: Look for spotted lanternfly and spongy moth egg masses on vehicles, trees, and other outdoor surfaces during the winter and early spring.

See also: Fact Sheets - Invasive Species for more species

In some parts of the state, Vermonters are noticing the return of a disturbing sight in our forests and backyards: masses of spongy moth caterpillars. The Vermont Agency of Agriculture, Food and Markets (VAAFM) and Department of Forests, Parks, and Recreation (FPR) have received numerous inquiries from concerned citizens regarding large numbers of spongy moth caterpillars, Lymantria dispar dispar, (also known as LDD, formerly gypsy moth). While the spongy moth can emerge anywhere in the state, unusually high populations observed last year and again this spring are localized in western areas of Vermont. More information regarding the impacts of spongy moths on trees and forests can be found at https://fpr.vermont.gov/spongy-moth.

Emerald ash borer, laurel wilt disease, thousand cankers disease, and the European gypsy moth are likely to be brought into North Carolina in or on firewood. The use of local firewood is an important factor in preventing the spread of potentially devastating invasive species to our state's forests. Please keep this in mind as you prepare for your outdoor recreation activities. See Forest Health Invasive Pest Maps for more information about pest monitoring.