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THE AMOUNT OF FOLIAGE CONSUMED OR DESTROYED BY LABORATORY-REARED LARVAE OF THE BLACK-HEADED BUDWORM, ACLERIS VARIANA

Published online by Cambridge University Press:  31 May 2012

Richard A. Werner
Richard A. Werner
Affiliation:
Northern Forest Experiment Station, Forest Service, U.S. Department of Agriculture, Juneau, Alaska
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Abstract

Sitka spruce produces twice as many needles per linear inch of twig as western hemlock. Defoliation by the black-headed budworm, Acleris variana (Fern.), is more severe on hemlock than spruce because of differences in the phenological development of the hosts and in the feeding behavior of first- and second-instar larvae on each of the hosts.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 3 , March 1969 , pp. 286 - 290
Copyright
Copyright © Entomological Society of Canada 1969

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References

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