Canadian Forest Service Publications
Tests of Bacillus thuringiensis var. thuringiensis Berliner and B. cereus Frankland and Frankland on larvae of Choristoneura fumiferana (Clemens) 1963. Smirnoff, W.A. The Canadian Entomologist 95: 127-133.
Issued by: Laurentian Forestry Centre
Catalog ID: 15983
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The susceptibility of the spruce budworm, Choristoneura fmiferana (Clemens), under laboratory conditions, to commercial preparations of Bacillus thuringiensis var. thuringiensis Berliner was reported by Angus et al. in 1961. This bacterium was recently tested, under field conditions, both as dusts and sprays. The results of these tests are presented here with comments on the effect of the environment and other factors.