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Larvicidal activity of a granular formulation of a Melia volkensii (Gurke) acetone extract against Aedes aegypti L.

Published online by Cambridge University Press:  19 September 2011

Peter Awala
Affiliation:
Department of Zoology, University of Nairobi, P. O. Box 30197, Nairobi, Kenya
Richard W. Mwangi
Affiliation:
Department of Zoology, University of Nairobi, P. O. Box 30197, Nairobi, Kenya
Lucy W. Irungu*
Affiliation:
Department of Zoology, University of Nairobi, P. O. Box 30197, Nairobi, Kenya
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Abstract

A method of formulating granules from an acetone extract fraction of the fruit of Melia volkensii, a Kenyan tree known to possess insecticidal properties, was developed. The granules were tested for toxicity to third and fourth instars of Aedes aegypti L. Some acute physiological effects were observed within 24 hours of adding the granules to water as larval food. A mortality of 95% was achieved on various developmental stages of the mosquito after 12 days, with only 5% adult emergence being recorded.

Résumé

Une méthode de formulation de granules a été mise au point à partir d'une fraction d'un extrait à l'acétone du fruit de Melia volkensii (Gurke), un arbre kenyan reconnu posséder des propriétés insecticides. Les granules étaient testées pour leur toxicité sur les 3me et 4me stades larvaires de A. aegypti. Certains effets physiologiques aigus ont été dépistés endéans 24 h après que ces granules étaient ajoutées à l'eau, en guise d'aliment pour larves. Une mortalité de 95% a été enregistrée chez différents états de développement du moustique au cours de 12 jours et seulement 5% d'adultes ont émergés.

Type
Research Articles
Copyright
Copyright © ICIPE 1998

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References

Al-Sharook, Z., Balan, K., Jiang, Y. and Rembold, H. (1991) Insect growth inhibitors from two tropical Meliacea: Effect of crude seed extracts on mosquito larvae, J. Appl. Entomol. 111, 425430.CrossRefGoogle Scholar
Attri, B. S. and Prasad, G. R. (1980) Neem oil extractive— An effective larvicide. Indian J. Ent. 42, 371374.Google Scholar
Irvine, B. N. (1961) Woodplants of Ghana. Oxford University Press, London. 717 pp.Google Scholar
Jacobson, M., Strokes, J. B., War then, J.D. Jr, Redfern, R. E., Reed, D. K., Webb, R.E. and Telek, L. (1984) Neem research in the US Department of Agriculture: An update. Proc. 2nd. Int. Neem Conf. Rauis., Publ. GTZ, Eschborn, Germany.Google Scholar
Ketkar, C. M. and Ketkar, M. S. (1989) Ecologically safer, cheaper and easily available neem (Azadirachta indica) products. A boon to small scale farmers in the control of crops and stored grain pests under field conditions, pp. 689709. In Proc. Integrated Pest Management. Vol. III, Publ. GTZ, Fed. Rep. of Germany.Google Scholar
Kumuda, S., Michael, J. P. and Lewis, R. R. (1991) Botanical derivatives in mosquito control: A review, J. Am. Mosq. Control Assoc. 7, 210237.Google Scholar
Mwangi, R. W. (1989) Studies of insecticidal activity in extract fractions of Melia voikensii (Gurke), pp. 729746. In Proc. Integrated Pest Management. Vol. III, Publ. GTZ, Fed. Rep. of Germany.Google Scholar
Mwangi, R. W. and Mukiama, T. K. (1988) Evaluation of Melia voikensii extract fractions as mosquito larvicides. J. Am. Mosq. Control Assoc. 4, 442444.Google ScholarPubMed
Mwangi, R. W. and Rembold, H. (1988) Growth inhibiting and larvicidal effects of Melia volkensii extracts on Aedes aegypti larvae. Entomol. Exp.Appl. 46, 103108.CrossRefGoogle Scholar
Schmutterer, H. (1983) Neem Research in Federal Republic of Germany since the first International Neem conference, pp. 2130. In Proc. 2nd Int. Neem Conf., Rauis. Eschborn, Fed. Rep. of Germany.Google Scholar
Zebitz, C. P. W. (1984) Effects of some crude and azadirachtin-enriched neem Azadirachta indica seed kernel extracts on larvae of Acdes aegypti. Entomol. Exp. Appl. 35, 1116.CrossRefGoogle Scholar
Zebitz, C. P. W. (1986) Potential of neem seed kernel extracts in mosquito control, pp. 555573. In Proc. 3rd Int. Neem Conf., Nairobi. Publ. GTZ, Eschborn, Fed. Rep. of Germany.Google Scholar