Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Bordasch, R. P., and A. A. Berryman. 1977. Host resistance to the fir engraver beetle, Scolytus ventralis (Coleoptera: Scolytidae) 2. Repellency of Abies grandis resins and some monoterpenes. Canadian Entomologist 109:95-100.