Pdf the occurance of oil palm weevil, elaeidobius kamerunicus order coleoptera and the productivity of oil palm, elaeis guineensis family. Elaeidobius kamerunicus is the effective pollinators of oil palm plants. Elaeidobius kamerunicus is a wellknown insect pollinator of oil palm. The purpose of this study was to identify the population density of oil palm pollinator weevil ek using the concept of. The occurance of oil palm weevil, elaeidobius kamerunicus order. Pdf previously, pollination mechanism in oils palm was mainly dependent on wind and pollinator insects thrips hawaiiensis thysanoptera.
Pdf modelling the use of elaeidobius kamerunicus for pollination. Pollination activity of elaeidobius kamerunicus coleoptera. Germplasm, palm oil plantation, insect pollinator, elaeidobius kamerunicus. Four small curculionidae of the genus elaeidobius are the main pollinators in cameroon. Some aspects of the ecology of elaeidobius kamerunicus. Paper open access genetic diversity of elaeidobius. Elaeidobius kamerunicus adalah kumbang moncong yang termasuk ordo coleoptera, family curculionidae, dan sub family delominae.
The most effective are elaeidobius kamerunicus and elaeidobius plagiatus. Penyerbuk kelapa sawit elaeidobius kamerunicus faust. Effects of rainfall, number of male inflorescences and. In particular, sampling techniques for estimating the weevil population were developed and the effect of rat predation on the immature weevils was studied. Elaeidobius kamerunicusis is entirely dependent on the male in. Tirathaba bunch moth and termite management for oil palm planting on peat soils peter lim apical m sdn. Curculionidae, the pollinating weevil, is the most efficient insect pollinator of oil palm, elaeis guineensis. Biology of elaeidobius kamerunicus and elaeidobius plagiatus. Previously, pollination mechanism in oils palm was mainly dependent on wind and pollinator insects thrips hawaiiensis thysanoptera. In oil palm flowers, it has been documented that not all flowervisiting insects are pollinators, but some insects are recognized as predators, parasitoids or saprophages, which may affect the abundance and persistence of the weevil pollinating oil palm, elaeidobius kamerunicus. Curculionidae and its impact on fruitset of oil palm elaeis guineensis in india.
Associated with the successful introduction of elaeidobius kamerunicus faust, the oil palm pollinator in malaysia. Pdf life cycle of elaeidobius kamerunicus researchgate. Pdf role of pollinating weevil elaeidobius kamerunicus. This situation has affected the oil palm fruit set. Yang merupakan salah satu syarat untuk dapat melakukan ujian sarjana di departemen ilmu hama dan penyakit tumbuhan, fakultas pertanian, universitas sumatera utara medan.
Continuity of the oil palm pollination require minimal induvidual of the weevil. Occasional paper, porim palm oil research institute of malaysia, 39 pp. Curculionidae main pollinators of oil palm in west africa 429. Allanblackia floribunda pdf allanblackia floribunda is an evergreen tree growing to 25 m 82ft by 20 m 65ft at a fast rate. Elaeidobius kamerunicus, of oil palm in malaysia idris abd ghani, university kebangsaan malaysia, malaysia 11. However, recent reports showed that there are morphometric differences across islands that might be due to different selection.
Each spikelet on the male inflorescences carries about flowers, and on the female inflorescence 1530 flowers. Elaeidobius kamerunicus is the most efficient insect pollinator for oil palm because it carries more pollen grains than any other species basri et al. Pdf demografi kumbang elaeidobius kamerunicus faust. P elaeidobius kamerunicus activity on mature and immature palm before, during and after the incidence of drought and haze disturbance. Furthermore, it is well adapted for the wet season dhileepan 1994. Biology of elaeidobius kamerunicus and elaeidobius. The pollinating weevil, elaedobius kamerunicus ek has been known to be the most efficient insect pollinator of oil palm, and has successfully improved the oil palm pollination and increased the yield. Elaeis guineensis is a species of palm commonly just called oil palm khmer. Kehidupan kumbang ini bergantung pada bunga jantan kelapa sawit. In particular, sampling techniques for estimating the weevil population were developed and the effect of. Variation in populations of the introduced pollinating weevil elaeidobius kamerunicus coleoptera. The wet season was more favourable for the population buildup of e.
Agus eko prasetyo, tap rozziansha, hari priwiratama, sri. As the weevil population in the male inflorescence did not represent the actual numbers. Variation in populations of the introduced pollinating. Pollination is by insects, the most effective being the weevil, elaeidobius kamerunicus, native to west africa. Both consist of a central stem carrying about 200 flower bearing spikelets. Biology of elaeidobius kamerunicus and elaeidobius plagiatus coleoptera. Elaeidobius kamerunicus faust, the pollinating weevil of oil palm, with emphasis on developing sampling. The pdf file you selected should load here if your web browser has a pdf reader plugin installed for example, a recent version of adobe acrobat reader. This page was last edited on 16 january 2020, at 04. The population of elaeidobius kamerunicus faust and its aggressiveness have been on a decline in indonesia in recent years.
Ripe fruit develops in about 155 days after fertilization, but the bulk of the oil is synthesized in the final 24 weeks. Curculionidae, the pollinating weevil, is the most efficient insect pollinator of oil palm, elaeis skip to content uprava pdf me. The introduced pollinating weevil, elaeidobius kamerunicus faust, established itself well in the oil palm plantations in india, but the population fluctuated between seasons reaching its lowest level during the dry season. The results showed that water deficit was recorded in july, august, september and october, it was 45, 92, 80, and 148 mm respectively. Pdf on jan 1, 1986, peter kevan and others published modelling the use of elaeidobius kamerunicus for pollination of oil palm find, read and cite all the. Curculionidae, the pollinating weevil, is the most efficient insect pollinator of oil palm, elaeis skip to content home 4 pdf. Botanical aspects of the oil palm relevant to crop management. Pollination activity of elaeidobius kamerunicus bioone. Demografi dan populasi kumbang elaeidobius kamerunicus. Its introduction has greatly reduced the need for assisted pollination. Elaeidobius species are attracted to male flowers only during anthesis when a strong aniseedlike scent is emitted.
The occurance of oil palm weevil, elaeidobius kamerunicus. Some aspects of the ecology of the pollinating weevil of oil palm, elaeidobius kamerunicus faust an exotic insect to malaysia imported from cameroon, west africa, three years ago were studied in 1983 and 1984. If you would like more information about how to print, save, and work with pdfs, highwire press provides a helpful frequently asked questions about pdfs. Current status of elaeidobius kamerunicus faust and its effects on the oil palm industry in malaysia. Peran elaeidobius kamerunicus sebagaii polinator di. Tirathaba bunch moth and termite management for oil palm. Your use of this pdf, the bioone complete website, and all posted and. Pollination in the oil palms elaeis guineensis e oleifera. Adult weevils of the african oil palm weevil elaeidobius kamerunicus are very hostspecific to the oil palm, elaeis guineensis. When the stigmas are receptive, the female flower emits short pulses of a similar but sharper and more penetrating odour which attracts elaeidobius species away from the male flowers. Curculionidae, the pollinating weevil, is the most efficient insect pollinator of oil palm, elaeis guineensis jacq. Host location and ovipositional preference of elaeidobius. Working paper 9 the nonindustrial palm oil sector in cameroon. It is hardy to zone uk the flowers are pollinated by.
Text is available under the creative commons attributionsharealike license. The pollination of the oil palm is assured mainly by the insects. Elaeidobius kamerunicus, elaeis guineensis, host preference, oviposition, olfactometer. Hatch and carry technique was developed to solve this problem. A high population of the weevil was not necessarily beneficial because it resulted in the lowering of. It is native to west and southwest africa, specifically the area between angola and the gambia. Population of oil palm pollinator insect elaeidobius kamerunicus. Introduction herbivorehost plant interactions can have an important influence on the dynamics and management of insect populations. Adult weevils consume oil palm pollen and lay eggs in anthesizing male in. Elaeidobius kamerunicus was first introduced to malaysia from cameroon as an oil palm pollinator in 1981. The role of elaeidobius kamerunicus in oil palm plantations in recent times is questioned related to the decline in oil palm productivity. Population elaeidobius kamerunicus greatly reduced. Bioecological perspective of elaeidobius kamerunicus iopri related to oil palm fruit set in indonesia the dynamics of oil palm fruit set in indonesia impact of insecticide application on pollinating weevil decline of the pollinating weevil aggressiveness biology of pollinating weevil after 30 years of introduction the role of e.
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