Canadian Forest Service Publications

Characteristics of a new strain of Bacillus thuringiensis var. thuringiensis Berliner (Serotype I) isolated from the bumblebee wax moth.1966. Bucher,G.E.; Angus, T.A.; Krywienczyk, J. Journal of Invertebrate Pathology 8:485-491

Year: 1966

Issued by: Great Lakes Forestry Centre

Catalog ID: 33160

Language: English

Availability: PDF (request by e-mail)

Mark record


A new strain of Bacillus thuringietms, isolated from the bumblebee wax moth, Vitula edmandsae, has most of the biochemical and serological characteristics of strains designated as serotype I or as B. thllringiensis var. thttringiensis Berliner. However, the new strain is from 30 to 70 times as virulent for cutworm and silkworm larvae as previously isolated strains of serotype I, produces rapid paralysis in silkworms, and inhibits feeding of cutworm larvae. These effects indicate that it possesses some toxic components uncommon to serotype I strains. This conclusion is supported by the agardiffusion patterns obtained when antigen of the new strain reacts with antiserum prepared from parasporal crystals of other strains.