In a long-term nontarget study initiated in 1995 on the effects of Lymantria dispar (L.) and its control with applications of Bacillus thuringiensis var. kurstaki Berliner, parasitoids were sampled by Malaise traps and through rearing of macrolepidopterous larvae. Sampling was performed on 18 200-ha study plots located in the George Washington National Forest in Virginia and Monongahela National Forest in West Virginia in the central Appalachians. Tachinid flies known to attack macrolepidoptera tend to fluctuation in abundance in response to their potential host population fluctuations.
Species 1: Diptera Tachinidae
Species 2: Lepidoptera
Keywords: forest, parasitoid
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