Poland, T., J. Borden, A. Stock, and L. Chong. 1998. Green leaf volatiles disrupt responses by the spruce beetle, Dendroctonus rufipennis, and the western pine beetle, Dendroctonus brevicomis (Coleoptera: Scolytidae) to attractant-baited traps . Journal of the Entomological Society of British Columbia 95:17-24.