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Spruce budworm in Eastern United States

By J.L. Bean

Mortality and top killing of spruce-fir caused by repeated budworm defoliation

By Donald C. Schmiege

Spruce budworm defoliation causes continued top killing and tree mortality in northeastern Minnesota

By Harold O. Batzer

Parasitism of Douglas-fir tussock moth eggs in Denver

By R.D. Averill

Ground tests with several insecticides against the Douglas-fir tussock moth in New Mexico

By J.P. Linnane