Choristoneura biennis, the two-year-cycle budworm moth, is a species of moth of the family Tortricidae. It is found in Canada, where it has been recorded from Alberta and British Columbia.mothphotographersgroup
The wingspan is about 26 mm. Adults have been recorded on wing in July.
The larvae feed on Abies lasiocarpa, Picea engelmanni and Picea glauca.Brown, J. W., G. Robinson & J. A. Powell. 2008. Food plant database of the leafrollers of the world (Lepidoptera: Tortricidae) (Version 1.0)Predicting defoliation by Choristoneura biennis (Lepidoptera: Tortricidae) 2003. Nealis, V.G.; Turnquist, R. The Canadian Entomologist 135: 903-907.
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