Two-year-cycle Spruce Budworm
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Choristoneura biennis (Freeman)
Lepidoptera: Tortricidae
- Harris, J.W.E. 1963. Sampling the egg stages of the two-year-cycle spruce budworm near Babine Lake, British Columbia. Forestry Chronicle 39: 199-204. -
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- Nealis, V. G.; Turnquist, R. 2003. Predicting defoliation by Choristoneura biennis (Lepidoptera: Tortricidae). Canadian Entomologist 135: 903-907. -
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