Summary
Laboratory-reared males ofHeliothis virescens (F.) that were released in olfactometers in the laboratory were attracted to theH. virescens synthetic pheromone, but not to (Z)-9-tetradecen-1-ol formate (Z-9-TDF), or to either pheromonal component, (Z)-11-hexadecenal (Z-11-HDAL) or (Z)-9-tetradecenal (Z-9-TDAL). Also, they did not respond to the pheromone when it was dispersed simultaneously with Z-9-TDF. The proximity of the test chemicals in the olfactometer made little, if any, difference in the response ofH. virescens males to the pheromone source. Preexposure to the synthetic pheromone, Z-9-TDF, Z-11-HDAL, or Z-9-TDAL greatly reduced the number ofH. virescens males responding to the pheromone. This reduction was probably caused by habituation of the moths to these chemicals.
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References
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The authors wish to thank A. H. Baumhover, E. Hart and other personnel of the Tobacco Research Laboratory, Oxford, N. C., for supplying many of the insects used in these studies.
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Tingle, F.C., Mitchell, E.R. Response ofHeliothis virescens to pheromonal components and an inhibitor in olfactometers. Experientia 34, 153–154 (1978). https://doi.org/10.1007/BF01944645
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DOI: https://doi.org/10.1007/BF01944645