Responses of Four Torticid Moth Species (Lepidoptera: Tortricidae) to High-Release Pheromone Dispensers: Implications for Mating Disruption of These Species
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Authors
Pierzchala, Anna V.
Issue Date
2004
Type
Thesis
Language
en_US
Keywords
Alternative Title
Abstract
The behaviors of four tortricid moth species to high-release pheromone rope dispensers were observed in a Michigan orchard. The species investigated include the
obliquebanded leafroller (Choristoneura rosaceana), redbanded leafroller (Argyrotaenia
velutinana), oriental fruit moth (Grapholita molesta), and codling moth (Cydia
pomonella). All species, with the exception of codling moth, were observed to approach
their respective pheromone dispensers. Oblique banded leafroller and redbanded
leafroller were both assayed in a sustained-flight wind tunnel to determine changes in
response to multiple component pheromone lures and rope dispensers 24h after preexposure to ropes to quantify the physiological effect of mating disruption conditions.
Significantly more pre-exposed RBLR males oriented to ropes than unexposed males.
Conversely, significantly fewer pre-exposed OBLR males oriented to ropes than
unexposed males. Significantly more pre-exposed OBLR oriented to lures than naive
males. Collectively, results suggest that OBLR experience a decrease in response
threshold after pre-exposure to ropes whereas RBLR experience an increase in response threshold.
Description
vii, 37 p.
Citation
Publisher
Kalamazoo College
License
U.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder.