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A PARTIAL LIFE TABLE FOR THE DOUGLAS-FIR CONE MOTH, BARBARA COLFAXIANA (LEPIDOPTERA: OLETHREUTIDAE)1

Published online by Cambridge University Press:  31 May 2012

T. Evan Nebeker
T. Evan Nebeker
Affiliation:
Department of Entomology, Oregon State University, Corvallis
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Abstract

A population of the Douglas-fir cone moth, Barbara colfaxiana (Kft.), was studied on the Buckhead Seed Production Area, Lowell Ranger District, Willamette National Forest, Oregon, during 1971. Factors contributing to the mortality of B. colfaxiana are presented in a partial life table and discussed. The egg – instar I was identified as the critical age interval and resinosis the critical factor.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 7 , July 1977 , pp. 943 - 951
Copyright
Copyright © Entomological Society of Canada 1977

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