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PARASITOIDS OF THE INTRODUCED PINE SAWFLY, DIPRION SIMILIS (HYMENOPTERA: DIPRIONIDAE), IN MINNESOTA

Published online by Cambridge University Press:  31 May 2012

Barbara C. Weber
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Abstract

Parasitoids of the overwintering generation of the introduced pine sawfly were surveyed in Minnesota. The parasitization rate was greatest in cocoons collected from foliage in fall 1971, but there was nearly complete mortality of sawflies and parasitoids in cocoons above the snowline by April 1972. Monodontomerus dentipes (Dalm.) most commonly emerged from cocoons collected from trees and shrubs in fall 1971. Exenterus amictorius (Panz.) was the most common parasitoid of cocoons collected from duff in both 1971 and 1972.

Type
Articles
Information
The Canadian Entomologist , Volume 109 , Issue 3 , March 1977 , pp. 359 - 364
Copyright
Copyright © Entomological Society of Canada 1977

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References

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