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The Biology of Adelges cooleyi (Gill.) (Homoptera: Phylloxeridae)1

Published online by Cambridge University Press:  31 May 2012

Margaret E. P. Gumming
Margaret E. P. Gumming
Affiliation:
Forest Biology Laboratory, Calgary, Alberta.
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Extract

Adelges cooleyi (Gill.) causes galls on spruce in the forests and on shelter-belt and shade-tree plantings in Alberta. The alternate host is Douglas fir, on which the injury is less conspicuous. The tree species affected are white spruce, Picea glauca (Moench) Voss, Engelmann spruce, P. engelmanni Parry, and blue Douglas fir, Pseudotsuga menziesii (Mirb.) Franco. A. cooleyi is indigenous to North America.

Type
Articles
Information
The Canadian Entomologist , Volume 91 , Issue 10 , October 1959 , pp. 601 - 617
Copyright
Copyright © Entomological Society of Canada 1959

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References

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