Review Article Examines Causes of Spruce Budworm Population Fluctuations

The spruce budworm (Choristoneura fumiferana) is a destructive forest pest. The caterpillars of these moths in the family Tortricidae feed on balsam fir, white spruce, red spruce, and black spruce. During an outbreak in the mid-1970s, which lasted 15-20 years, they defoliated nearly 52 million hectares of boreal forest in eastern Canada, and a more […]

Source: Entomology Today

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