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Bionomics of Three Closely Related Species of Contarinia Rond. (Diptera: Cecidomyiidae) from Douglas-fir Needles1

Published online by Cambridge University Press:  31 May 2012

S. F. Condrashoff
S. F. Condrashoff
Affiliation:
Forest Entomology Laboratory, Vernon, B.C.
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Extract

Incidence of damage to needles of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco, by larvae of gall midges has been noted in British Columbia since 1935. In 1953 severe midge damage to Douglas fir occurred in sections of British Columbia, Washington, Idaho and Montana. Outside of brief and general reference to these gall midges in literature and in unpublished notes, almost nothing was known of their biology, and the species remained undescribed. Relatively little interest has been shown these insects until recent years, when severe infestations in southeastern British Columbia affected the sale of Douglas fir for use as Christmas trees.

Type
Articles
Information
The Canadian Entomologist , Volume 94 , Issue 4 , April 1962 , pp. 376 - 394
Copyright
Copyright © Entomological Society of Canada 1962

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References

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