1. Amman, G.D., Thier, R.W., McGregor, M.D., andSchmitz, R.F. 1989. Efficacy of verbenone in reducing lodgepole pine infestations by mountain pine beetles in Idaho.Can. J. For. Res. 19:60?64.
2. Amman, G.D.,Their, R.W.,Weatherby, J.C.,Rasmussen, L.A., andMunson, A.S. 1991. Optimum dosage of verbenone to reduce infestation of mountain pine beetle in lodgepole pine stands of central Idaho. USDA, Forest Service, Res. Pap. INT-446.
3. Aylor, D.E. 1976. Estimating peak concentration of pheromones in the forest, pp. 177?188,in J.F. Anderson, and H.K. Kaya, (eds.). Perspectives in Forest Entomology. Academic Press, New York.
4. Billings, R.F., andGara, R.I. 1975. Rhythmic emergence ofDendroctonus ponderosae (Coleoptera: Scolytidae) from two host species.Ann. Entomol. Soc. Am. 68:1033?1036.
5. Borden, J.H., andLindgren, B.S. 1988. The role of semiochemicals in IPM of the mountain pine beetle, pp. 247?255,in T.L. Payne, and H. Saarenma (eds.). Integrated Control of Scolytid Bark Beetles. Virginia Polytechnic Institute and State University, Blacksburg, Virginia.