The flighted spongy moth complex (Lymantria dispar asiatica, Lymantria dispar japonica, Lymantria umbrosa, Lymantria postalba and Lymantria albescens) are invasive insects that pose a significant threat to Canada's forests, biodiversity and economy. These moths can feed on a wide range of economically important tree species and other important plants.
Ships and cargo, including containers and used vehicles can carry the egg masses of these moths to Canada from China, Japan, South Korea and Russia (far east region).
Female FSMCs are attracted to light and can fly and disperse rapidly to lay eggs. While the main pathway of entry to Canada is by egg masses laid on marine vessels, FSMC can also "hitchhike" on imported goods. Females have been known to lay eggs on shipping containers, cars, and heavy equipment.
It is not known to occur in North America, although introductions of the insect have been detected and eradicated.
What we are doing
Eradication response in the township of Langley, British Columbia
In 2022, the Canadian Food Inspection Agency (CFIA) worked with the British Columbia Ministry of Forests and other stakeholders on an eradication response following the detection of two FSMCs in the township of Langley, British Columbia, in 2021. No additional FSMCs have been detected in this area, and this eradication response is now complete.
For marine vessels
- Asian gypsy moth (AGM) now called flighted spongy moth complex
- Notice to the marine shipping industry: Uncertified marine vessels arriving from FSMC-regulated areas
December 8, 2021 - Policy clarification: Canadian FSMC requirements
- PI-014: FSMC Critical Response Plan
- Poster – Inspect before entry