Abstract
The behavioural significance of (Z)-9-tetradecenal to male H. assulta was tested by comparing the number of moths attracted to lures containing a standard synthetic female sex pheromone with lures in which (Z)-9-tetradecenal was also added. The standard pheromone mixture used contained 1000 μg (Z)-9-hexadecenal, 50 μg (Z)-11-hexadecenal, 300 μg (Z)-9-hexadecenyl acetate and 15 μg (Z)-11-hexadecenyl acetate impregnated on rubber septa. Addition of (Z)-9-tetradecenal to the standard pheromone was shown to significantly reduce the caught of male H. assulta when added in amounts greater than 10 μg or 1% of the major pheromone component in both field and net-house experiments. The reduction in catch was found to be dependent on the quantity of (Z)-9-tetradecenal added to the standard pheromone. The implications of these results on conspecific and inter-specific pheromone-mediated communication in H. assulta and related sympatric heliothine species is discussed.
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Abbreviations
- Z9-16:AL :
-
(Z)-9-hexadecenal
- Z11-16:AL :
-
(Z)-11-hexadecenal
- Z9-16:AC :
-
(Z)-9-hexadecenyl acetate
- Z11-16:AC :
-
(Z)-11-hexadecenyl acetate
- Z9-14:AL :
-
(Z)-9-tetradecenal
- Z9-16:OH :
-
(Z)-9-hexadecen-1-ol
- Z11-16:OH :
-
(Z)-11-hexadecen-1-ol
- RH:
-
relative humidity
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Boo, K.S., Park, K.C., Hall, D.R. et al. (Z)-9-tetradecenal: a potent inhibitor of pheromone-mediated communication in the oriental tobacco budworm moth, Helicoverpa assulta . J Comp Physiol A 177, 695–699 (1995). https://doi.org/10.1007/BF00187628
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DOI: https://doi.org/10.1007/BF00187628