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EFFECT OF LIGHT AND TEMPERATURE ON THE ACTIVITY OF BALSAM WOOLLY APHID CRAWLERS

Published online by Cambridge University Press:  31 May 2012

M. D. Atkins  and
A. A. Hall
M. D. Atkins
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Victoria, British Columbia
A. A. Hall
Affiliation:
Forest Research Laboratory, Department of Fisheries and Forestry, Victoria, British Columbia
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Abstract

The behavior of the balsam woolly aphid in relation to its dispersal and establishment is reported. Light orientation trials provided no evidence that crawlers move over their host in a distinct manner. But the number of crawlers that drop from their host increases with light intensity and temperature. Crawler activity may also influence dropping, but activity declines rapidly with increasing age particularly at higher temperatures. Populations along stand edges are probably more subject to long range dispersal.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 5 , May 1969 , pp. 481 - 488
Copyright
Copyright © Entomological Society of Canada 1969

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References

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