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DIAPAUSE IN THE CABBAGE MAGGOT, HYLEMYA BRASSICAE (DIPTERA: ANTHOMYIIDAE)1

Published online by Cambridge University Press:  31 May 2012

D. G. R. McLeod
Affiliation:
Entomology Laboratory, Canada Department of Agriculture, Chatham, Ontario
G. R. Driscoll
Affiliation:
Entomology Laboratory, Canada Department of Agriculture, Chatham, Ontario

Abstract

The cabbage maggot, Hylemya brassicae, has a facultative diapause induced by the appropriate conditions of light and temperature: 16 hours of light per 24 hours at 20 °C produce nondiapause pupae while 12 hours of light per 24 hours at 20 °C produce diapause pupae. Diapause can be terminated if the pupae are exposed to temperatures from 0 to 5 °C for 4–5 months. Discrepancies in the literature with regard to the foregoing facts are explained.

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1967

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