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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

Alaska Forest Research Center. 1957. Alaska Forest Research Center biennial report for 1956–1957. U.S. Forest Serv. Stn Pap. 9.Google Scholar
Balch, R. E. 1932. The black-headed budworm. Can. Dep. Agric. Spec. Circ.Google Scholar
McCambridge, W. F. 1953. Studies on the biology, habits, and control of the black-headed budworm in Alaska. Progr. Rep. Alaslta Forest Res. Center, Juneau, Alaska.Google Scholar
McCambride, W. F. 1955. Effects of black-headed budworm feeding on second-growth western hemlock and Sitka spruce. Soc. Am. Forest. Proc. 1955: 171–172.Google Scholar
McCambridge, W. F., and Dowing, G. L.. 1960. Black-headed budworm. U.S. Dep. Agirc. Forert Pest Leafl. 45.Google Scholar
Randall, A. P. 1957. Plastic rearing cage for maintaining fresh conifer foliage for insect rearing. Can. Ent. 89 (10): 448–449.CrossRefGoogle Scholar
Schmiege, D. C. 1965. The fecundity of the black-headed budworm Acleris variana (Fern.) (Lepidoptera: Tortricidae) in coastal Alaska. Can. Ent. 97(11): 1226–1230.CrossRefGoogle Scholar
Snedecor, G. W. 1956. Statistical methods. Iowa State College Press, Ames, Iowa.Google Scholar