Understanding the potential influence of natural enemies on pest dynamics might be accomplished by studying the interactions among a pest and its natural enemies in a natural landscape. In my research I identified parasitoid guilds of Obliquebanded leafroller (Choristoneura rosaceana) in wild habitats and in apple orchards and estimated parasitism rates in both types of habitats. Oblique banded leafroller is an economically important pest in New York, Michigan, in New Zealand, and in several Canadian apple-producing regions. I collected naturally occuring larvae in early spring and reared these animals to obtain parasitoids. During the summer generatio I out-sourced larvae on small potted apple trees, on field-grown apple trees, and on dogwood foliage to collect parasitoids. I was able to determine the rate of parasitism in different habitats, and make a list of parasitoids of OBLR in New York.
Species 1: Lepidoptera Tortricidae Choristoneura rosaceana (obliquebanded leafroller)
Keywords: natural enemies, habitat
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA