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Preliminary observations on a field population of the oil palm-pollinating weevil Elaeidobius kamerunicus in Benin City, Nigeria

Published online by Cambridge University Press:  28 February 2007

C.I. Aisagbonhi ,
Norman Kamarudin ,
C.O. Okwuagwu ,
Mohd Basri Wahid ,
Trevor Jackson  and
V. Adaigbe
C.I. Aisagbonhi*
Affiliation:
Division of Entomology, Nigerian Institute for Oil Palm Research (NIFOR), PMB 1030, Benin City, Edo State, Nigeria
Norman Kamarudin
Affiliation:
Malaysian Palm Oil Board, Malaysia
C.O. Okwuagwu
Affiliation:
Division of Plant Breeding, NIFOR, Nigeria
Mohd Basri Wahid
Affiliation:
Malaysian Palm Oil Board, Malaysia
Trevor Jackson
Affiliation:
AgResearch Limited, New Zealand
V. Adaigbe
Affiliation:
Malaysian Palm Oil Board, Malaysia
*
*Email: izie53@yahoo.com
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Abstract

Anthesizing male inflorescences of oil palms were randomly sampled for the oil palm-pollinating weevil Elaeidobius kamerunicus at the Nigerian Institute for Oil Palm Research (NIFOR) (field 56) in Benin City, Nigeria from March to September 2002. The weevils were counted and later examined for nematodes. There were no significant differences in the mean number of adult weevils sampled from various positions on the inflorescences, but there were significant differences in their mean numbers sampled on the various dates (P=0.001). Microscopic examination of adult weevils indicated that nematodes are associated with the weevils and the spikelets. This preliminary survey indicates that E. kamerunicus is a major insect pollinator of the oil palm in NIFOR oil palm plantations. Its association with parasitic nematodes may have a bearing on the weevil's pollination efficiency. These findings will help in understanding further the factors that govern pollination efficiency, percent fruit set and the occurrence of seasonal peaks in yields of fresh fruit from Nigerian oil palms.

Keywords

oil palmpollinationElaeidobius kamerunicusnematodesNigeria
Type
Short Communication
Information
International Journal of Tropical Insect Science , Volume 24 , Issue 3 , September 2004 , pp. 255 - 259
Copyright
Copyright © ICIPE 2004

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References

Alibert, R. (1945) Pourquoi et comments on fait la fecondation artificelle sur le palmier à huile. Farm and Forest 6, 27.Google Scholar
Basri, M. W., Hoong, H. W., Siburat, S. and The, C. L. (1998) Effect of weevil pollination on oil extraction rate (OER) Proceedings of a Seminar on Opportunity for Maximizing Production through Better OER and Offshore Investment in Oil Palm, 14–15 December 1998, Bangi, Malaysia.Google Scholar
Beirnaert, A. (1935) Introduction a la biologie florale du palmier a huile, Elaeis guineensis (Jacq.) Publs INEAC Serie Sci. No. 5Google Scholar
Donough, C. R. and Law, I. H. (1987) The effect of weevil pollination on yield and profitability at Pamol plantations. Proceedings of the 1987 International Oil Palm, Palm oil Conferences 11, 523–527.Google Scholar
Donough, C. R., Chew, K. W. and Law, I. H. (1996) Effect of fruit set on OER and KER: results from studies at Pamol Estates (Sabah) Sdn Bhd. Planter 72, 203–219.Google Scholar
Hartley, C. W. S. (1988) The Oil Palm (Elaeis guineensis) Jacq. Longman Scientific & Technical. 761 pp.Google Scholar
Lepesme, P. (1946) Les charancons floricoles des palmiers. Agro. Trop. 1, 400.Google Scholar
Mariau, D., Houssou, M., Lecoustre, R. and Ndigui, B. (1991) Oil palm pollinating insects and fruitset rates in West Africa (1). Oléagineux 46, 43–51.Google Scholar
Rao, V., Gomez, M., Chayawat, N., Chia, C. C. and Lim, C. C. (2001) Some factors influencing oil bunch, OER and KER. Proceedings of the 2001 PIPOC International Palm Oil Congress. 167–199.Google Scholar
Syed, R. A. (1978) Studies on pollination of oil palm in West Africa and Malaysia. Report of the Commonwealth Institute of Biological Control. 48 pp.Google Scholar
Syed, R. A. (1979) Studies on oil palm pollination by insects. Bull. Entomol. Res. 69, 213–224.CrossRefGoogle Scholar
Syed, R. A. (1981a) Pollinating thrips of oil palm in West Malaysia. Planter 57, 62–81.Google Scholar
Syed, R. A. (1981b) Insect pollination of oil palm: feasibility of introducing Elaeidobius spp. into Malaysia. The Oil Palm in Agriculture in the Eighties 27 Proceedings of Malaysia Oil Palm Conference. 27 pp.Google Scholar
Syed, R. A., Law, I. H., Corley, R. H. V. (1982) Insect pollination of the oil palm: introduction, establishment and pollinating efficiency of E. kamerunicus in Malaysia. Planter 58, 547.Google Scholar