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THE LIFE HISTORY AND BIOLOGY OF HYSSOPUS THYMUS (HYMENOPTERA: EULOPHIDAE), A PARASITE OF THE EUROPEAN PINE SHOOT MOTH (LEPIDOPTERA: OLETHREUTIDAE) IN ONTARIO

Published online by Cambridge University Press:  31 May 2012

Paul D. Syme
Paul D. Syme
Affiliation:
Forest Research Laboratory, Canadian Forestry Service, Sault Ste. Marie, Ontario
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Abstract

A technique for rearing Hyssopus thymus is described by which easy observation of behaviour and development is possible. The life history and observations on paralysis, oviposition, host-feeding, and mating in this species are given. Complete development takes about 17 days at a constant temperature of 24 °C. Because H. thymus is common and widespread, shows no selection for attack at different tree crown levels, and has been responsible for up to 37% parasitism of overwintering Rhyacionia buoliana larvae, it is concluded that it is the most effective native parasite of R. buoliana in Ontario.

Type
Articles
Information
The Canadian Entomologist , Volume 103 , Issue 12 , December 1971 , pp. 1691 - 1696
Copyright
Copyright © Entomological Society of Canada 1971

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