Abstract
A method of formulating granules from an acetone extract fraction of the fruit of Melin 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 3moet 4l1u’stades larvaires de A. negypti. 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.
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Awala, P., Mwangi, R.W. & Irungu, L.W. Larvicidal Activity of a Granular Formulation of a melia Volkensii (Gurke) Acetone Extract Against Aedes aegypti L.. Int J Trop Insect Sci 18, 225–228 (1998). https://doi.org/10.1017/S1742758400023444
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DOI: https://doi.org/10.1017/S1742758400023444