Life Stages, Source Of Infestation And Control Of Rhinoceros Beetle Oryctes Rhinoceros (Linn) (Coleoptera: Scarabaeidae) In A Newly Replanted Oil Palm Plantation

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dc.contributor.authorWan Mamat, Wan Zaki
dc.date.accessioned2018-06-22T02:10:46Z
dc.date.available2018-06-22T02:10:46Z
dc.date.issued2008-12
dc.description.abstractThe life stage of Oryctes rhinoceros was investigated in empty fruit bunches (EFBs) in a newly replanted area in FELDA Lepar Utara 05 Plantation, Bandar Jengka, Pahang. Three stages instar larvae (instar 1-3), prepupa and pupa were found in empty fruit bunches. However no egg was found during the study period. The larvae and pupae were continuously encountered in the EFB during 20 weeks of study. Oryctes rhinoceros synthetic pheromone, ethyl 4-methyloctanoate traps were used to detect the source of beetle coming into a 24 ha newly replanted oil palm plantation for 24 weeks. Weekly numbers of beetles collected in the traps during the study period were significantly different (p = 0.000). The abundance of male and female beetles varied significantly (p = 0.000). More beetles were caught from the fringe traps than those in the center fields (p = 0.000). In general the fringe (p = 0.000) and centre (p = 0.000) traps were significantly more attractive to females than males. The efficacy of a new insecticide, Bulldock® 025 EC (a.i: 2.9% w/w beta-cyfluthrin) was evaluated in the plantation for a period of 24 weeks. Three doses of Bulldock® 025 EC at 0.4, 0.5 and 0.6 L/ha were applied at intervals of 7 and 14 days. Cypermethrin and Regent 3G were used for comparison. Cypermethrin (0.05 L/ha) was sprayed at 14 days intervals and Regent 3G was applied at 30gm/palm at 14 days intervals. Another treatment using Regent 3G (30gm/palm) alternating with Bulldock® 025 EC (0.4 L/ha) was applied at 14 days intervals. Twenty palms were treated with each insecticide in a completely randomized block design (CRBD) experiment and were replicated 4 times. The mean number of damaged palms treated with Bulldock® 025 EC (0.4 L/ha) at 7 days and 14 days were 0.03/palm and 0.18/palm respectively, treated with Bulldock® 025 EC (0.5 L/ha) were 0.18/palm and 0.33/palm respectively and treated with Bulldock® 025 EC (0.6 L/ha) were 0.09/palm and 0.13/palm respectively. For Cypermethrin, Regent 3G and Regent 3G alternating with Bulldock® 025 EC, the mean damage for treatment at 14 day intervals were 0.54/palm, 0.78/palm, and 0.29/palm respectively. Weekly treatments of palms with Bulldock® 025 EC at 0.4 and 0.6 L/ha and with 0.6 L/ha at 2 week intervals showed promising results in controlling O. rhinoceros.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/5758
dc.language.isoenen_US
dc.publisherUniversiti Sains Malaysiaen_US
dc.subjectThe life stage of Oryctes rhinoceros was investigateden_US
dc.subjectin empty fruit bunches in a newly replanted areaen_US
dc.titleLife Stages, Source Of Infestation And Control Of Rhinoceros Beetle Oryctes Rhinoceros (Linn) (Coleoptera: Scarabaeidae) In A Newly Replanted Oil Palm Plantationen_US
dc.typeThesisen_US
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