Canadian Forest Service Publications

Aerial Application of Virus-Insecticide Combinations Against Spruce Budworm Choristoneura fumiferana (Clem) (Tortricidae: lepidoptera) at Rankin, Ontario, 1972: Part II: An Operational Assessment of These Trials, Part III: An Evaluation of the Incidence of Viruses. 1972. Morris, O.N.; Armstrong, J.A.; Hildebrand, M.J.; Howse, G.M.; Harnden, A.A.; Cunningham, J.C.; McPhee, J.R. Canadian Forestry Service, Chemical Control Research Institute, Ottawa, Ontario. Information Report CC-X-37. 68 p.