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PARASITES OF THE BLACK-HEADED BUDWORM, ACLERIS GLOVERANA (LEPIDOPTERA: TORTRICIDAE), IN SOUTHEAST ALASKA

Published online by Cambridge University Press:  31 May 2012

Torolf R. Torgersen
Torolf R. Torgersen
Affiliation:
Institute of Northern Forestry, Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, Juneau, Alaska
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Abstract

The parasites known to attack the black-headed budworm in Alaska and the relative importance of each species are presented. A key for the identification of parasite adults and notes on the bionomics of each species are given. The list of parasites includes 16 species, contrasting sharply with the 48 species reported from coastal British Columbia. Only two species, Triclistus pallipes Holmg. and Meteorus argyrotaeniae Johansen, appear in the Alaskan complex that do not also appear in the list from British Columbia. Trichogramma minutum Riley, the only egg parasite, caused up to 22% mortality. Four species attacking various larval instars caused 2 to 72% mortality within single larval collections. Two pupal parasites, Itoplectis quadricingulatus (Prov.) and Phaeogenes arcticus Cush., were reared from 10 to 31% of pupae collected in the field.

Type
Articles
Information
The Canadian Entomologist , Volume 102 , Issue 10 , October 1970 , pp. 1294 - 1299
Copyright
Copyright © Entomological Society of Canada 1970

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References

Comstock, J. H. 1918. The wings of insects. Comstock, Ithaca, N.Y.Google Scholar
Downing, G. L. 1957. The recent history of destructive forest insect activity in Alaska, 1957. Proc. 8th Alaska Sci. Conf.Google Scholar
Downing, G. L. 1959. Hemlock sawfly. U.S. Dep. Agric. Forest Pest Leafl. 31.Google Scholar
McCambridge, W. F., and Downing, G. L.. 1960. Black-headed budworm. U.S. Dep. Agric. Forest Pest Leafl. 45.Google Scholar
Prebble, M. L., and Graham, K.. 1945. The current outbreak of defoliating insects in coast hemlock forests in British Columbia. Part II. Factors of natural control. Brit. Columbia Lumberm. 29(3): 37–39, 88, 90, 92.Google Scholar
Rohwer, S. A., and Gahan, A. B.. 1916. Horismology of the hymenopterous wing. Proc. ent. Soc. Wash. 18: 20–76.Google Scholar
Torgersen, T. R. 1969. Two eulophid parasites associated with the black-headed budworm in Alaska. Can. Ent. 101 (2): 180.CrossRefGoogle Scholar
U.S.D.A. Forest Service. 1965. Forest insect conditions in the United States, 1964.Google Scholar