Canadian Forest Service Publications

The persistence of nuclear polyhedrosis virus and entomopoxvirus in populations of spruce budworm. 1975. Cunningham, J.C.; Howse, G.M.; Kaupp, W.J.; McPhee, J.R.; Harnden, A.A.; White, M.B.E. Canadian Forestry Service, Insect Pathology Research Institute, Sault Ste Marie. Information Report IP - X-10. 32 p.