Effect of sex pheromone and kairomone lures on catches of codling moth

Alan L. Knight

Abstract


Field studies were conducted in sex pheromone—treated apple orchards to evaluate the performance of a clear 0.11 m2 vertical interception trap coated with oil and baited with either (E,E)-8-10-dodecadien-1-ol (codlemone), ethyl (E, Z)-2,4—decadienoate (pear ester), or both attractants (combo) for adult codling moth, Cydia pomonella (L.). Interception traps baited with codlemone or pear ester caught significantly more males only or both sexes than unbaited traps, respectively. Interception and delta traps baited with codlemone caught similar numbers of males. Interception traps baited with pear ester caught up to 8-fold more males and 30-fold more females than similarly baited delta traps, respectively. Seasonal catches of females did not differ between light and pear ester—baited interception traps. Delta traps caught significantly more males, fewer females, and a similar number of total moths as the interception trap when both were baited with the combo lure. These data suggest that new clear trap designs can be developed to increase catches of female codling moth which may enhance seasonal monitoring and establish more useful predictive population models.

Keywords


apple; Cydia pomonella; traps; colour; monitoring

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References


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