Identification and synthesis of female sex pheromone of oriental beetle, Anomala orientalis (Coleoptera: Scarabaeidae)
Females of the Oriental beetle, Anomala orientalis (Waterhouse), release a sex pheromone composed of a 9:1 blend of (Z)- and (E)-7-tetradecen-2-one. The double-bond position of the pheromone was determined by DMDS derivatization and interpretation of the fragmentation patterns produced by monounsatu...
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| Main Authors: | , , , , , |
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| Format: | text |
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Animo Repository
1994
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| Subjects: | |
| Online Access: | https://animorepository.dlsu.edu.ph/faculty_research/4923 |
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| Institution: | De La Salle University |
| Summary: | Females of the Oriental beetle, Anomala orientalis (Waterhouse), release a sex pheromone composed of a 9:1 blend of (Z)- and (E)-7-tetradecen-2-one. The double-bond position of the pheromone was determined by DMDS derivatization and interpretation of the fragmentation patterns produced by monounsaturated ketones. In a sustained-flight tunnel, males responded by flying toward female beetles and attempting to copulate with them. Both effluvium and whole-body extracts of OB females were analyzed, and the activity was found only in the airborne extracts. Flight-tunnel bioassays also showed that a synthetic 90:10Z/E blend on a rubber septum was attractive and that the responses of males to this blend were equivalent to Z isomer alone, but much better than to the single E isomer. |
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