Marshall, Sean D G Moore, Aubrey Vaqalo, Maclean Noble, Alasdair Jackson, Trevor A The advantage of research is it can be used in integrated pest management (IPM) packages for monitoring of beetle population, and removal of beetles.Ī new haplotype of the coconut rhinoceros beetle, Oryctes rhinoceros, has escaped biological control by Oryctes rhinoceros nudivirus and is invading Pacific Islands. Aggregation pheromone is useful for attracting females. This result indicates the high population of O. rhinoceros and 9.9% other insect species (Rhynchophorus ferrugineus and Xylotrupes gideon). In 12 weeks of monitoring, the traps captured 101 insects consist of 90.1% O. The traps were observed, and the beetles trapped were counted every week. The pheromone compounds were placed in traps (buckets), hung 2 meters above the ground. Aggregation pheromones is a chemical compound containing Ethyl 4-methyl octanoate. rhinoceros that were attracted to aggregation pheromones in the field. The study aimed to monitor the population and analyze the sex ratio of O. rhinoceros attacked one of the coconuts producing villages with more than 75% of the coconut plant population O. Oryctes rhinoceros (Coleoptera: Scarabaeidae) is the most serious pest of coconut plantations in Indonesia. rhinoceros in oil palm plantations.Īggregation pheromones for monitoring the coconut rhinoceros beetle ( Oryctes rhinoceros) in Jerukwangi Village, Jepara, Indonesia Results of this study indicate that there is potential for using ethyl 4-methyloctanoate in operational programs to controlO. Newly designed vane traps were more effective in capturing beetles than were barrier or pitfall traps. rhinoceros increased, but doses of 6, 9, and 18 mg/day were competitive with 30 mg/day lures. Compared to ethyl 4-methyloctanoate alone, combinations of the three male-produced compounds did not increase attraction, whereas addition of freshly rotting oil palm fruit bunches to pheromone-baited traps significantly enhanced attraction. Ethyl 4-methylheptanoate was as attractive as ethyl chrysanthemumate and more attractive than 4-methyloctanoic acid, but further studies are required before it can be classed as an aggregation pheromone. In field trapping experiments, (4S)-ethyl 4-methyloctanoate and the racemic mixture were equally attractive and 10 times more effective in attracting beetles than ethyl chrysanthemumate, a previously recommended attractant. Synthesis of these compounds involving conjugate addition of organocuprates to ethyl acrylate is reported. Male coconut rhinoceros beetles,Oryctes rhinoceros (L.), produce three sex-specific compounds, ethyl 4-methyloctanoate, ethyl 4-methylheptanoate, and 4-methyloctanoic acid, the first of which is an aggregation pheromone. Hallett, R H Perez, A L Gries, G Gries, R Pierce, H D Yue, J Oehlschlager, A C Gonzalez, L M Borden, J H Aggregation pheromone of coconut rhinoceros beetle,Oryctes rhinoceros (L.) (coleoptera: Scarabaeidae).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |