Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
McMullen, L. H., L. Safranyik, and W. W. Nijholt. 1981. Pine oil protects living trees from attack by three bark beetle species, Dendroctonus spp (Coleoptera: Scolytidae). Canadian Entomologist 113:337-340.
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