Codling moth (Lepid.: Tortricidae): Disruption of sexual communication with an antipheromone [(E,E)-8,1O-dodecadien-1-O1 acetate]

D. O. Hathaway, H. R. Moffitt, D. A. George

Abstract


When broadcast applications of [E, E]-8,10-dodecadien-1l-ol acetate an antipheromone of the codling moth, <i>Cydia pomonella</i> (L.), were made to apple or pear orchards, the catch of male codling moths was reduced in traps baited with either synthetic sex pheromone or virgin females. When the antipheromone, at a rate of 11.25g AI/0.4 ha was applied broadcast to pear trees using a ground dispenser, male response to pheromone- or female-baited traps was completely inhibited for 9 days with no significant reduction thereafter. Based on these and earlier results, it is concluded that (E,E)-8,10-dodecadien-1l-o1 acetate inhibits male codling moth response, whether the sources are placed in close proximity to the attractive agent or distributed in a broadcast application. These results contradict previous arguments that antipheromones as a group may not be effective in the field when used to permeate large volumes of air.

Keywords


Codling moth; <i>Cydia pomonella</i>; Lepidoptera; Tortricidae

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References


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