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PICKUP OF PHOSMET WETTABLE POWDER BY CODLING MOTH LARVAE (LASPEYRESIA POMONELLA (LEPIDOPTERA: OLETHREUTIDAE)) AND TOXICITY RESPONSES OF LARVAE TO SPRAY DEPOSITS

Published online by Cambridge University Press:  31 May 2012

R. W. Fisher  and
D. R. Menzies
R. W. Fisher
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
D. R. Menzies
Affiliation:
Research Station, Agriculture Canada, Vineland Station, Ontario L0R 2E0
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Abstract

Larvae picked up wettable powder particles on legs, setae, and mouth parts. Phosmet was 5 times more toxic in small droplets than in large droplets to first instar codling moth, but small droplets required 2.5 times the number/cm2. With large droplets, a larger treated area was required to produce 50% mortality. For any percentage area covered small droplets gave higher mortality. Speed of toxic action was related to amount of phosmet/cm2 and to no. of droplets/cm2.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 2 , February 1979 , pp. 219 - 223
Copyright
Copyright © Entomological Society of Canada 1979

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References

Fisher, R. W. and Dougan, G. P.. 1970. Collection and measurement of spray droplets with viscous polybutene and an image-splitting eyepiece. Can. Ent. 102: 31–35.CrossRefGoogle Scholar
Fisher, R. W. and Menzies, D. R.. 1978. Relationship of phosmet deposit parameters to mortality of newly-hatched oriental fruit moth larvae. J. econ. Ent. 71: 43–49.CrossRefGoogle Scholar
Hagley, E. A. C. 1974. Pest management in Ontario apple orchards. Agric. Can. Spring 1974.Google Scholar
Hoyt, S. C. and Burts, E. C.. 1974. Integrated control of fruit pests. A. Rev. Ent. 19: 243–244.CrossRefGoogle Scholar
Jackson, D. M. 1976. Behavior of first instars of the codling moth. Bull. Oreg. ent. Soc. 61: 493–496.Google Scholar
Menzies, D. R. and Fisher, R. W.. 1975. Droplet generator suitable for studying droplets of wettable powder suspensions. Can Agric. Eng. 17: 63–66.Google Scholar
Pree, D. J. and Hagley, E. A. C.. Toxicity of some insecticides to eggs of oriental fruit moth and codling moth. Proc. ent. Soc. Ont. (in press).Google Scholar
Proverbs, M. D. 1975. Pilot project on the sterility method of codling moth control. Br. Columb. Orchardist, May, p. 8.Google Scholar