Canadian Forest Service Publications
A comparison of the pathogenicity of two baculoviruses to the spruce budworm and the western spruce budworm. 1983. Cunningham, J.C.; Kaupp, W.J.; McPhee, J.R. Canadian Forestry Service, Forest Pest Management Institute, Saulte Ste. Marie, Ontario.
Available from: Great Lakes Forestry Centre
Catalog ID: 21632