The Asian gypsy moth is an invasive insect. It poses a significant threat to Canada’s forests, biodiversity and economy. These moths can feed on a wide range of economically important tree species, as well as other important plants.

Ships and cargo—including containers and used vehicles—can carry the egg masses of these moths to Canada from China, Japan, North Korea, South Korea and Russia (Far East region). In the right conditions, caterpillars hatch from these egg masses and they can go great distances with the wind to find food.