Fredericks, S. E., and M. J. Jenkins. 1988. Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins, Coleoptera: Scolytidae) brood production on Douglasfir defoliated by western spruce budworm (Choristoneura occidentalis Freeman, Lepidoptera: Tortricidae) in Logan Canyon, Utah . Great Basin Naturalist 48:348-351.
Fredericks & Jenkins 1988
Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
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