ELAEIDOBIUS KAMERUNICUS PDF

Abstract. Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae), the pollinating weevil, is the most efficient insect pollinator of oil palm, Elaeis guineen -. Abstract. Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae), the pollinating weevil, is the most efficient insect pollinator of oil palm, Elaeis guineensis. The pollination of the oil palm is assured mainly by the insects. The most effective are Elaeidobius kamerunicus and Elaeidobius plagiatus. Declining.

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The pollen carrying capacity increased with the day of anthesis, being maximum during the third to fifth days of anthesis. The advantages of the introduction of E. As an alternative, trials were carried out, initially on an area of 25 ha, increasing to ha, on the use of hives, each hive, a 21 cm high cylinder, containing weevils and 2 g of fresh, pure pollen.

In the Solomon Islands, the introduced pollinating weevil E. Please leave a message, we will get back you shortly.

The effects of the curculionid, E. Weevil pollination also decreased parthenocarpy from All anthesising female inflorescences at the time of population sampling were marked and the fruit bunches which formed were later harvested for analysis. Greathead stated that in Malaysia, especially Sabah, assisted pollination of oil palm is necessary and even then yields are lower than those in Africa.

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Andhra Pradesh to find out the influence of weather factors on pollinating weevil, Elaeidobius kamerunicus Curculionidae: 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.

Increases in fruit set of Ann Jose ankara escort. The weevils chew anther filaments of opened male flowers. The pollinating weevil, E.

File:Elaeidobius – Wikipedia

The main rat species in the oil palm estates, R. Improved set has caused the production of more but smaller fruitlets, but has affected oil yield per bunch very little.

High rainfall may also affect pollination by reducing weevil activity and overall viability of available pollen. It is estimated that the yield at Bukit Sentang Estate will return to the level of the pre-weevil period E,aeidobius, An increase in rat elaeldobius, particularly to rotting male flowers, was noted following weevil introduction Hutauruk and Ps, Publication Policies and Ethics.

An experiment was carried out on a 7 year old oil palm plantation Tenera hybrid located at Suryaraopet village, Pedavegi Mandal, West Godavari Dt.

Pollination studies initiated at Pamol, Sabah in Decemberindicated that there may be a seasonal trend in the population of E. The average bunch weight doubled compared with kamerunicuss before release of the weevil, and now remains steady, with a tendency to increase further.

Therefore, before this age, artificial pollination is required.

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African oil palm weevil

The average viability of the pollen load was Severe pruning to induce male inflorescence production is being tested as a less labour intensive alternative to improve fruit set Donough et al. This is normally carried out by hand.

For the first 4 years, yields oscillated, declines being coupled with lowering of bunch numbers and increases with increased bunch numbers.

Close Find out more. Three explanations have been suggested, the most important of which was related to a marked increase in the moisture elweidobius of the fruit bunches Keywords: The increase in yield was due to an increase in the average bunch weight, although the bunch number decreased.

Elaeidobius kamerunicus – Wikispecies

During that period the maximum and minimum temperatures reached to more than 35oC and 33oC respectively and relative humidity dropped to less than The occurrence of biotic factors especially during summer months could cause severe setback on efficiency and development of pollinating weevil coupled with abiotic factors.

Areca catechu betelnut palm. Hymenoptera and a reduviid bug, Sycanus sp kamernicus associated with spent male inflorescences and found feeding on developing grubs and pupae of pollinating weevil.