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Spore Coverage and Persistence of Bacillus cereus Frankland and Frankland Sprayed on Apple Trees against the Codling Moth1

Published online by Cambridge University Press:  31 May 2012

June M. Stephens
Affiliation:
Entomology Laboratory, Belleville, Ontario

Extract

Trials to determine the extent of fruit protection given by spraying spores of Bacillus cereus Frankland and Frankland on apple trees exposed to natural attack from the codling moth, Carpocapsa pomonella (L.), were carried out in the experimental apple orchard of the Entomology Laboratory at Summerland, British Columbia. Heavy injury was expected there on trees not receiving commercial insecticide applications. Ten test and ten check trees were chosen at random. Check trees received no treatment of any kind. Test trees were treated with six sprays between May 26 and June 29, 1954, and five between August 5 and September 8, 1954.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1957

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References

Reed, G. B., and McKercher, D. G.. 1948. Surface growth of bacteria on cellophane. Canadian J. Res., E, 26: 330332.CrossRefGoogle Scholar
Reed, R. W., and Reed, G. B.. 1948. “Drop-plate” method of counting viable bacteria. Canadian J. Res., E, 26: 317326.CrossRefGoogle Scholar
Stephens, J. M. 1952. Disease in codling moth larvae produced by several strains of Bacillus cereus. Canadian J. Zool. 30: 3040.CrossRefGoogle Scholar