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PARASITISM OF THE CONE MOTH EUCOSMA RESCISSORIANA (LEPIDOPTERA: OLETHREUTIDAE) IN NORTHERN IDAHO1

Published online by Cambridge University Press:  31 May 2012

Richard A. Goyer  and
John A. Schenk
Richard A. Goyer
Affiliation:
Department of Entomology, University of Wisconsin, Madison
John A. Schenk
Affiliation:
College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow
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Abstract

Twelve species of parasitic insects were associated with Eucosma rescissoriana Heinrich in western white pine, Pinus monticola Douglas, cones in northern Idaho from 1963 to 1965. Pimplopterus n. sp. (Hymenoptera: Ichneumonidae), Chelonus petrovae McComb (Hymenoptera: Braconidae), Apanteles starki Mason (Hymenoptera: Braconidae), and Psalidopteryx psilocorsiphaga Brooks (Diptera: Tachinidac), in order of decreasing abundance, accounted for approximately 95% of the total parasitism. One additional species, Bracon rhyacioniae (Muesebeck) (Hymenoptera: Braconidae), was present locally in small numbers. The four major species increased their rates of parasitism from 9.4 to 40.9% in one area during this 3-year study and were shown to be effective natural control agents of E. rescissoriana in seed-production areas.

Type
Articles
Information
The Canadian Entomologist , Volume 101 , Issue 10 , October 1969 , pp. 1063 - 1069
Copyright
Copyright © Entomological Society of Canada 1969

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References

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