description Spruce budworm moth Overview
The eastern spruce budworm, Choristoneura fumiferana, is a tortricid moth native to North America. Its caterpillars feed mainly on balsam fir and white spruce, also using red and black spruce, and periodic outbreaks can defoliate extensive areas of boreal and northern forest. Several consecutive years of severe defoliation can kill trees, which makes the species important to forest managers and the timber sector.
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