A pheromone mimic: disruption of mating communication in the navel orangeworm, Amyelois transitella, with Z,Z-1,12,14-heptadecatriene

Curtis, C.E.; Clark, J.D.; Carlson, D.A.; Coffelt, J.A.

A pheromone mimic: disruption of mating communication in the navel orangeworm, Amyelois transitella, with Z,Z-1,12,14-heptadecatriene

1987

Curtis, C.E. | Clark, J.D. | Carlson, D.A. | Coffelt, J.A.

A novel olefinic analog, Z,Z-1,12,14-heptadecatriene, was synthesized from Z,Z-11,13-hexadecadienal, a major pheromone component of the navel orangeworm, Amyelois transitella (Walker) (Lepidoptera: Pyralidae), and evaluated as a potential disruptant of mating communication in commercial almond orchards. The effectiveness of the triene as a disruptant was compared to that of the aldehyde by evaluating the reduction in captures of feral males in female-baited traps and the reduction in mating success for females. The triene was highly effective in bringing about reductions in male captures in traps in all tests relative to controls. This effectiveness lasted as long as 5 weeks in one test and was influenced by type of dispenser, release rate and proximity of dispensers to female-baited traps. In none of the tests did the triene outperform the aldehyde in reducing male captures. The results of mating success tests showed the triene to be ineffective relative to controls (26% reduction) while the aldehyde yielded 100% reductions in matings during a 6-day period.

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