![]() Ethyl 4-methyloctanoate, major component of Oryctes rhinoceros (L.) (Coleoptera, Dynastidae) pheromone. Morin, J.-P., Rochat, D., Malosse, C., Lettere, M., Desmier De Chenon, R., Wibwo, H.,and Descoins, C. Enantiomeric discrimination by sensilla placodea. Sex pheromone reception in the scarab beetle Anomala cuprea. Chemical ecology of phytophagous Scarab beetles. Trapping and disruption of the mating activity of Scapanes australis using live male as bait in Papua New Guinea. Kakul, T., Laup, S., Stathers, T., Beaudoin-Ollivier, L., Morin, J.-P., and Rochat, D. Proceedings of the PORIM international oil palm congress, Malaysia, pp. The integrated management of Oryctes rhinoceros (L.) populations in the zero burning environment. Green leaf volatile detecting olfactory receptor neurone display very high sensitivity and specificity in a scarab beetle. Aggregation pheromone of the coconut rhinoceros beetles, Oryctes rhinoceros (L.) (Coleoptera: Scarabaeidae). Aggregation pheromone of the African rhinoceros beetles, Oryctes monoceros (Olivier) (Coleoptera: Scarabaeidae). Deux nouveaux Oryctini de Nouvelle Guin´ee (Coleoptera, Dynastidae). The Planter ( Kuala Lumpur) 73:119–127.ĭechambre, R. ![]() The bioefficacy of the aggregation pheromone in mass trapping of rhinoceros beetles ( Oryctes rhinoceros L.) in Malaysia. Observation on the biology and ecology of Oryctes rhinoceros and Scapanes australis: Pests of coconut palms in Melanesia. Le complexe Scapanes-Rhynchophorus, principal problème entomologique du cocotier en Papouasie-Nouvelle-Guin´ee. B., Kakul, T., Ollivier, J., Rochat, D., and Mariau, D. The role of the male pheromone and its potential for crop protection are discussed.īeaudoin-Ollivier, L., Morin, J.-P., Prior, R. The captures followed a log-linear decrease during the 125-week trapping program. A pheromone-based mass trapping led to the capture of 2173 beetles in 14 traps surrounding 40 ha of a cocoa-coconut plantation. Traps with the pheromone caught both sexes in a 3:2 female–male ratio. Plant pieces, either sugarcane or coconut, enhanced captures by the synthetic pheromone, which was active alone. Beetles were captured in traps baited with racemic 1 plus 2, with or without a stereoisomer mixture of 3 (2.5- to 2500-mg/day doses). In contrast, extensive field trapping trials with various synthetic pheromone mixtures and doses showed that 1 and 2 (formulated in polyethylene sachets in 90:5 v:v ratio) were necessary and sufficient for optimum long-range attraction. ![]() EAG recordings from natural and synthetic pheromone and a pitfall olfactometer were poorly informative. ![]() We report the biological data obtained from natural and synthetic pheromone, previously described as an 84:12:4 (w/w) mixture of 2-butanol ( 1), 3-hydoxy-2-butanone ( 2), and 2,3-butanediol ( 3). Laboratory and field investigations were carried out to investigate the nature and role of the male pheromone emitted by the Dynast beetle Scapanes australis and to develop a mass trapping technique against this major coconut pest in Papua New Guinea. ![]()
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