Spongy moth (Lymantria dispar dispar)
Changes to common names
The common names for some insects are under review internationally. Spongy moth is the new common name for Lymantria dispar dispar, previously known as European gypsy moth, EGM or LDD moth.
The group of moths making up the Asian gypsy moth complex will be referred to by their scientific names, Lymantria dispar asiatica, Lymantria dispar japonica, Lymantria umbrosa, Lymantria postalba and Lymantria albescens, or the short form AGM moth until a final decision on a new common name is made.
These changes do not affect the French names.
The spongy moth (Lymantria dispar dispar) is an invasive pest that can destroy trees by eating their leaves. It is found in Ontario, Quebec, New Brunswick, Nova Scotia and Prince Edward Island. The spongy moth has been detected in British Columbia, Alberta, Saskatchewan and Manitoba, although introductions of the insect have been detected and eradicated.
What to do
- Inspect trees and things stored outside, including your vehicle and patio furniture
- Look closely at things like tarps, yard and garden items, and sports equipment (including the underside)
- It's important not to accidentally transport these pests to new parts of the country, so if you're travelling or going camping, check your camper, trailer, or RV before making the trip
- Remove or scrape off egg masses, larvae, caterpillars and moths
- Destroy them by soaking them in hot soapy water for at least 2 days
- Put the destroyed insects in your household garbage
If you find the spongy moth in western Canada or Newfoundland and Labrador, please report it.
What information is available
- D-08-04: Plant protection import requirements for plants and plant parts for planting
- D-02-12: Phytosanitary import requirements for non-processed wood and other wooden products, bamboo and bamboo products, originating from all areas other than the continental United States
- D-01-12: Phytosanitary Requirements for the Importation and Domestic Movement of Firewood
- D-98-09: Comprehensive policy to control the spread of Lymantria dispar, in Canada and the United States
- D-98-08: Entry Requirements for Wood Packaging Material into Canada
- D-95-08: Phytosanitary import requirements for fresh temperate fruits and tree nuts
- Notice to industry – New compliance measures for facilities moving LDD moth host nursery stock outside of a regulated area
- Notice to industry – Update to regulated zones for spongy moth
- United States Department of Agriculture – Animal and Plant Health Inspection Service
- British Columbia Ministry of Forests, Land, Natural Resource Operations and Rural Development (FLNRORD)
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