Abstract
Codling moths are attracted to acetic acid and to ethyl-(E,Z)-2,4-decadienoate, the pear ester, when presented individually. The attraction to acetic acid is thought to be a food finding behavior, whereas the pear odorant, ethyl-(E,Z)-2,4-decadienoate, may be a host kairomone. We found, in a flight tunnel study, that more male and female codling moths were captured in traps when the compounds were presented together compared to tested separately. The combination of odorants provides a stronger lure for female codling moths than exists with pear ester alone and increases the potential for using lures in managing this pest of pome fruits and walnuts.
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Acknowledgments
Technical assistance was provided by Daryl Green in Washington, USA; Vanessa Mitchell in New Zealand; and Mark Gardiner and Sarah Cockburn in British Columbia, Canada. This work was supported by grants from the Washington State Tree Fruit Research Commission and the New Zealand Foundation for Research Science and Technology, CO6X0301, Insecticide Risk Reduction.
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Landolt, P.J., Suckling, D.M. & Judd, G.J.R. Positive Interaction of a Feeding Attractant and a Host Kairomone for Trapping the Codling Moth, Cydia pomonella (L.). J Chem Ecol 33, 2236–2244 (2007). https://doi.org/10.1007/s10886-007-9391-1
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DOI: https://doi.org/10.1007/s10886-007-9391-1