Canadian Forest Service Publications
Factors affecting loss in radial growth of Douglas-fir caused by western spruce budworm defoliation. 1985. Alfaro, R.I. Pages 251-252 in C.J. Sanders, R.W. Stark, E.J. Mullins, and J. Murphy, Editors. Recent Advances in Spruce Budworms Research, Proceedings: of the CANUSA spruce budworms research symposium. September 16-20, 1984, Bangor, Maine. Agriculture Canada, Ministry of State for Forestry, Ottawa, USDA, Forest Service. 527 p.
Available from: Pacific Forestry Centre
Catalog ID: 2539