Asian Gypsy Moth
Asian gypsy moth (AGM, Lymantria dispar ssp.) is an exotic pest not known to occur in the United States. Although in many ways similar to the European gypsy moth subspecies, AGM larvae have been known to feed on over 500 plant species, covering over 100 botanical families. In addition, the female AGM is an active flyer that is capable of flying up to 25 miles (40 km). This broad range of possible host plants combined with the female’s ability to fly allows the AGM to spread rapidly into and through uninfested areas. Large infestations of AGM can completely defoliate trees, weakening the trees and leaving them more susceptible to disease. If defoliation is repeated for two or more years, it can lead to the death of large sections of forests, orchards and landscaping. An introduction into the US would pose a major threat to the landscape of the North American continent.
European Gypsy Moth
European gypsy moth is a significant nonnative forest pest in the United States. The goals of APHIS-PPQ are to define the extent of the gypsy moth infestation, to eradicate isolate populations, and to limit the artificial spread of gypsy moth beyond the infested area through quarantines and an active regulatory program. PPQ’s gypsy moth program regulates movement of gypsy moth host material from gypsy moth infested areas to other areas of the United States. This program is an effective Federal-State partnership that prevents the establishment of gypsy moth in areas of the United States that are not contiguous to current regulated States and counties.
- Asian Gypsy Moth
- European Gypsy Moth
Gypsy moth regulations are posted in the Code of Federal Regulations (CFR). However, until new quarantines are entered into the CFR, Federal Orders are used to implement the quarantines. Therefore, a comprehensive list of quarantined areas is available for review.
APHIS Program Publications
For inquiries about domestic gypsy moth activities, please contact:
National Policy Manager
For inquiries about Asian gypsy moth inspections or for vessel information, please contact: