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A Note on Temperature and Postdiapause Development of the Larch Sawfly and Its Parasite Bessa harveyi (Tnsd.)1

Published online by Cambridge University Press:  31 May 2012

R. J. Heron
R. J. Heron
Affiliation:
Forest Biology Laboracory, Winnipeg, Manitoba
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Extract

Some information of interest on the postdiapause development of the larch sawfly, Pristiphora erichsonii (Htg.), and its tachinid parasite Bessa harveyi (Tnsd.) has been obtained in the course of laboratory rearings. Sawfly cocoons were placed in cold storage at 2 to 3°C. in September or October and held until the following year, usually late March, when they were incubated at 10 or 15°C. They were then held at constant temperatures until emergence was complete. Sawfly and parasite emergence was recorded daily.

Type
Articles
Information
The Canadian Entomologist , Volume 93 , Issue 6 , June 1961 , pp. 431 - 433
Copyright
Copyright © Entomological Society of Canada 1961

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References

1 Contribution No. 670, Forest Biology Division, Research Branch, Department Agriculture, Ottawa, Canada.