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.

Author: Faejind Dazragore
Country: Poland
Language: English (Spanish)
Genre: Education
Published (Last): 18 August 2008
Pages: 397
PDF File Size: 3.58 Mb
ePub File Size: 6.28 Mb
ISBN: 490-1-63242-925-6
Downloads: 17091
Price: Free* [*Free Regsitration Required]
Uploader: Melrajas

Welcome to MPOB’s Journal of Oil Palm Research Website

Publication Policies and Ethics. Close Find out kamerynicus. The pollen carrying capacity of males was significantly greater than that of females, which was partially due to the greater surface area of males and especially the presence of pleural setae.

The pollen carrying capacity was inversely proportional to the weevil population per spikelet, too high weevil populations resulted in reduced pollinating efficiency, presumably due to intraspecific competition.

An increase in rat damage, particularly to rotting male flowers, was noted following weevil introduction Hutauruk and Ps, Elaedobius kamerunicusElaeis guineensisinsect pollinationoil palmpollinator forcePyrodercers spThrips hawaiiensis. Oviposition takes place after anthesis so that the larvae develop on tissue which has served its purpose and no longer has any function for the palm and, therefore, Elaeidobius species cause no significant damage.

This is normally carried out by hand. Therefore, before this age, artificial pollination is required. Wahid and Hassan reported the results of a survey covering Malaysian oil palm estates to assess the increase in rat populations since the introduction of E.


During dry periods, T.

A study on the pollination of seven-year old palms in a plantation in Selangor, Malaysia was made between and to determine the relative roles of three types of pollinators, Elaeidobius kamerunicus Coleoptera: The advantages of the introduction of E. If you would like to, you can learn more about the cookies we use. Bacillus thuringiensis strains HD-1 and HD-7 were found to be safer.

Since the introduction of E. Hymenoptera and a reduviid bug, Sycanus sp were associated with spent male inflorescences and found feeding on developing grubs and pupae of pollinating weevil. The inflorescences which reached anthesis were 6.

File:Elaeidobius kamerunicus.jpg

Can’t read the image? Journal of Oil Palm Research Vol. High fresh fruit bunch yields in resulted in the production of a low crop innumbers of bunches being lower, although bunch size was still high. The percentage of kernel kamrrunicus bunch and oil to bunch were and Guidelines Upcoming Special Issues. This information is useful for designing plant protection strategies and elawidobius conserve the pollinators in irrigated oil palm gardens.

Freed of competition with other species of Elaeidobius, it breeds in all parts of the male inflorescence and is equally common in all rainfall zones.

Go to distribution map Previously, hand pollination was required in areas where palms and weevils were not native, at great expense to the growers.

Elaeidobius kamerunicus – Wikispecies

In field studies at the Bukit Sentang Estate in Sumatra, Rlaeidobius, the yield of fresh fruit bunches increased in the first year after the release of E.


The average bunch elaeixobius doubled compared with that before release of the weevil, and now remains steady, with a tendency to increase further.

The population of the weevil was less than The correlation between weevil activity and weather parameters viz. BoxKuala Lumpur, Malaysia.

The pollen carrying capacity increased with the day kzmerunicus anthesis, being maximum during the third to fifth days of anthesis. In these countries, the inadequacy of pollination has been a major problem. Control methods are not appropriate for E.

Cookies on Plantwise Knowledge Bank Like most websites we use cookies. The presence of larvae appeared to attract rats. Areca catechu betelnut palm. Fruit detachment from the bunch was delayed as a result of pollinating weevil introduction Chairani and Taniputra, No weevils were found developing during May 4 th week to June 2 nd week.

Reports of successful establishment and enhanced yields are now being elaeidobuis from these countries Greathead, In Papua New Guinea, components determining the oil and kernel extraction showed no response to density when assisted pollination was used, but with the successful introduction of the pollinator, E.

However, palm oil factories in Malaysia elaeidobiius designed for the former lower yields and are unable to extract all of the extra oil now available, but this is being remedied by introducing the processing methods used in West Africa.