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The Effect of Bacillus thuringiensis Berliner on the Fauna of an Apple Orchard1

Published online by Cambridge University Press:  31 May 2012

R. P. Jaques
Affiliation:
Research Station, Canada Department of Agriculture, Kentville, Nova Scotia

Abstract

Plots in a bearing apple orchard were sprayed with formulations of Bacillus thuringiensis Berliner on five to seven occasions in each of four consecutive seasons. Larvae of the winter moth, eye-spotted bud moth, orchard tent caterpillar, and fall webworm were less numerous on foliage in plots treated with B. thuringiensis than in the check plot. Numbers of free-living blister mites were reduced by treatment with the bacterium. Other phytophagous mites were not numerous in any of the plots. Injury to fruit by larvae of the codling moth, winter moth, and eye-spotted bud moth and by the mirid Atractotomus mali (Meyer) was lower in plots treated with the bacterium. Only three taxa of predacious arthropods were consistently affected by the application of B. thuringiensis; one was less numerous where the bacterium was applied and two were more numerous.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1965

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References

Heimpel, A. M., and Angus, T. A.. 1960. Bacterial insecticides. Bact. Rev. 24: 266288.CrossRefGoogle ScholarPubMed
Henderson, C. F., and McBurnie, H. V.. 1943. Sampling technique for determining populations of the citrus red mite and its predators. Circ. U.S. Dep. Agric. 671.Google Scholar
Jaques, R. P. 1961. Control of some lepidopterous pests of apple with commercial preparations of Bacillus thuringiensis Berliner. J. Ins. Pathol. 3: 167182.Google Scholar
Jaques, R. P. 1963. The influence of some fungicides on the effectiveness of sprays of Bacillus thuringiensis Berliner. Canad. J. Pl. Sci. 43: 301306.CrossRefGoogle Scholar
Legner, E. F., and Oatman, E. R.. 1962. Effects of Thuricide on the eye-spotted bud moth, Spilonota ocellana. J. econ. Ent. 55: 677678.CrossRefGoogle Scholar
Lord, F. T. 1956. The influence of spray programs on the fauna of apple orchards in Nova Scotia. IX. Studies on means of altering predator populations. Canad. Ent. 88: 129137.Google Scholar
Lord, F. T. 1962. The influence of spray programs on the fauna of apple orchards in Nova Scotia. XI. Effects of low dosages of DDT on predator populations. Canad. Ent. 94: 204216.Google Scholar
MacPhee, A. W., and Sanford, K. H.. 1961. The influence of spray programs on the fauna of apple orchards in Nova Scotia. XII. Second supplement to VII. Effects on some beneficial arthropods. Canad. Ent. 93: 671673.Google Scholar
McEwen, F. L., Glass, E. H., Davis, A. C. and Splittstoesser, C. M.. 1960. Field tests with Bacillus thuringiensis Berliner for control of four lepidopterous pests. J. Ins. Pathol. 2: 152164.Google Scholar
Meyer, R. H. 1964. Field evaluation of Bacillus thuringiensis Berliner as a microbial insecticide for use in insect control practices in Illinois apple orchards. Diss. Abst. 24: 38963897.Google Scholar
Quinton, R. J., and Doane, C. C.. 1962. Bacillus thuringiensis against the fall cankerworm, Alsophilia pometaria. J. econ. Ent. 55: 567568.Google Scholar
Sanford, K. H. 1964. Life history and control of Atractotomus mali, a new pest of apple in Nova Scotia (Miridae: Hemiptera). J. econ. Ent. 57: 921925.Google Scholar