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Aspen defoliators

Description

Insect pests periodically cause extensive and severe defoliation of aspen in Alberta. Many species of insects defoliate aspen trees in the province, including the forest tent caterpillar, the... More ≫

Description

Insect pests periodically cause extensive and severe defoliation of aspen in Alberta. Many species of insects defoliate aspen trees in the province, including the forest tent caterpillar, the large aspen tortrix, and the Bruce spanworm. This purpose of this brochure is to provide the general public with information about aspen defoliators, how to recognize signs of their presence and the damage caused by the insects. Includes photos to help identification.

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