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Laboratory Tests and Field Trials of Low Volume Aerial Applications of Bacillus thuringiensis Orthene Combinations Against the Spruce Budworm Choristonerura fumiferana (Clem.) 1975. Morris, O.N.; Armstrong, J.A.; Hildebrand, M.J. Chemical Control Research Institute, Ottawa, Ontario. Information Report CC - X-110. 81 p.
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