Co-Authors:
Mazor, M., Institute of Plant Protection, ARO, Volcani Center, Bet Dagan, 50250, Israel
Harel, M., Institute of Plant Protection, ARO, Volcani Center, Bet Dagan, 50250, Israel
Levsky, S., Institute of Plant Protection, ARO, Volcani Center, Bet Dagan, 50250, Israel
Dunkelblum, E., Institute of Plant Protection, ARO, Volcani Center, Bet Dagan, 50250, Israel
Abstract:
Capillary gas chromatography indicated the presence of (Z)‐7‐dodecenyl alcohol and (Z)‐7‐dodecenyl acetate in the abdominal tip extracts of female Cornutiplusia circumflexa (L.) (Lepidoptera: Noctuidae: Plusiinae) moths. Gas chromatography combined with mass spectrometry and dimethyl disulfide derivatization confirmed the structure of these two principal pheromone components. In a flight‐tunnel bioassay, a 5:1 blend of alcohol and acetate elicited the complete courtship sequence by males. The response was comparable to that evoked by a live virgin female, but males spent significantly longer time at calling females than at the synthetic source. The 5:1 blend was also attractive to male C. circumflexa in the field, as indicated by catches in traps baited with this mixture. (Z)‐7‐dodecenyl alcohol alone was slightly attractive whereas (Z)‐7‐dodecenyl acetate alone was completely inactive. C. circumflexa is the first reported Plusiinae species which utilizes (Z)‐7‐dodecenyl alcohol as the major pheromone component. 1991 The Netherlands Entomological Society
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