Identification and synthesis of a male-produced sex pheromone from the stink bug Chlorochroa sayi
In: Journal of chemical ecology, Jg. 27 (2001), Heft 6, S. 1177-1201
Online
academicJournal
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Zugriff:
The reproductive behavior of the stink bug Chlorochroa sayi was studied in the laboratory. There was a sexual maturation period of about 10 days before hugs began mating. Sexually mature adult hugs engaged in courtship consisting of antennation and head-butting of the female by the male, before the female adopted a receptive posture and copulation occurred Both sexes mated multiple times during their life-spans, with the mean duration of copulations of virgin bugs (42.3 ± 19.6 min) and experienced bugs (37.3 ± 28.4 min) being similar. Most matings were initiated in the late afternoon or evening, when pheromone production by males was greatest. Males transferred sperm and nutrients constituting about 17% of their body weight to females during mating. Three male-specific components, methyl geranate. methyl citronellate, and methyl (E)-6-2,3-dihydrofarnesoate in a ratio of 100: 0.45: 1.6, were first detected in volatiles collected from male bugs on green beans about 9-12 2 days after the final molt to the adult stage. In vertical Y-tube bioassays, females were attracted to odors from mature male bugs and to a blend of the three male-produced components. Low numbers of females also were attracted in field trials with the three-component blend. The relatively weak attraction may he a result of other, as yet unknown cues being required in addition to the pheromone such as visual or substrate-borne vibrational cues.
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Identification and synthesis of a male-produced sex pheromone from the stink bug Chlorochroa sayi
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Autor/in / Beteiligte Person: | HO, Hsiao-Yung ; MILLAR, Jocelyn G |
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Zeitschrift: | Journal of chemical ecology, Jg. 27 (2001), Heft 6, S. 1177-1201 |
Veröffentlichung: | New York, NY: Springer, 2001 |
Medientyp: | academicJournal |
Umfang: | print, 3 P. 1/4 |
ISSN: | 0098-0331 (print) |
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