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Controlled-release malathion formulations as mosquito larvicides

Published online by Cambridge University Press:  19 September 2011

Moustafa S. Saleh
Moustafa S. Saleh
Affiliation:
Entomology Division, Faculty of Agriculture, University of Alexandria, Alexandria, Egypt
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Abstract

Three polyvinyl chloride (PVC) formulations of malathion were prepared and tested as controlled-release formulations against mosquito larvae of Culex pipiens L. Non-expanded formulations gave effective control, with 100% larval mortalities, for 23–51 days, followed by expanded (16–33 days) and foamed (14–27 days) formulations. The results indicate that increasing the percentage of active ingredient in the present formulations increased their effective control against mosquito larvae for longer periods.

Larval treatments with these formulations of malathion led apart from lethal action to a decrease in the reproductive potential and in longevity of mosquito adults which survived from these treatments.

Résumé

Trois polyvinyl chloride (PVC) formulations de malathion ont été préparées et expérimentées comme formulations a débit contrôlé contre les larves du moustique Culex pipiens L. Les résultats ont montré que les formulations non dilatées ont donné un contrôlé efficace avec 100% de mortalité des larves pour 23–51 jours, suivi par des formulations dilatées (16–33 jours) et des formulations gonflées (14–27 jours). Les résultats ont aussi indiqué l'augmentation du pourcentage de lingrediant actif dans les présentes formulations a sugmenté leur contrôlé efficace sur les larves des moustiques pour de plus longues periodes.

Hormis leur action mortelle, le traitement des larves avec ces formulations de malathion, a aboutit à un effet décroissant sur le potentiel de reproduction, ainsi que sur la longevité des moustiques adultes qui ont survécu a ce traitement.

Keywords

Polyvinyl chloride (PVC)controlled-releasemalathionCulex pipiensmosquito larvaemosquito adultsreproductive potentiallongevity
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 7 , Issue 6 , December 1986 , pp. 697 - 699
Copyright
Copyright © ICIPE 1986

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References

REFERENCES

Boike, A. H. and Rathburn, C. B. (1973) An evaluation of several toxic rubber compounds as mosquito larvicides. Mosquito News 33, 501–505.Google Scholar
Cardarelli, N. F. (1978) Controlled-release organotins as mosquito larvicides. Mosquito News 38, 328–333.Google Scholar
Evans, E. S., Nelson, J. H., Pennington, N. E. and Young, W. W. (1975) Larvicidal effectiveness of controlled-release formulations of chlorpyrifos in woodland pool habitat. Mosquito News 35, 343–349.Google Scholar
Kassem Sh., M. I., Saleh, M. S., Aly, M. I. and Abdellatif, M. E. (1985) Formulations for controlled-release of fenitrothion in water. Insect Sci. Applic. 6, 613–616.Google Scholar
Lawson, M. A., Miller, T. A., Oakleaf, R. J. and Young, W. W. (1973) Formulations for mosquito larvicides II. Laboratory evaluations of selected polyethylene formulations of chlorpyrifos. Mosquito News 33, 561–567.Google Scholar
Miles, J. W. and Woehst, J. E. (1969) Formulations for controlled-release of abate in water. In Pesticidal Formulation Research. Advances in Chemistry, Ser. No. 86, pp. 183–191. American Chemical Society, Washington.CrossRefGoogle Scholar
Nelson, L. L., Miller, T. A. and Young, W. W. (1973) Polymer formulations of mosquito larvicides. V. Effects of continuous low-level chlorpyrifos residues on the development of Culex pipiens quinquefasciatus Say population in the laboratory. Mosquito News 33, 396–402.Google Scholar
Nelson, J. H., Evans, E. S., Pennington, N. E. and Meish, M. V. (1976) Larval control of Psorophora confinnis (Lynch Arribalzaga) with a controlled-release formulation of chlorpyrifos. Mosquito News 36, 47–51.Google Scholar
Saleh, M. S., Gaaboub, I. A. and Kassem Sh. M. I. (1981) Larvicidal effectiveness of three controlled-release formulations of dursban and dimilin on Culex pipiens L. and Aedes aegypti (L.). J. agric. Sci., Camb. 97, 87–96.CrossRefGoogle Scholar
Saleh, M. S. (1984) Testing three controlled-release formulations of altosid against larvae of Aedes aegypti (L.) and Culex pipiens L. Alexandria Sci. Exchange 5, 59–68.Google Scholar
Saleh, M. S., Gaaboub, I. A., Kassem, Sh. M. I. and Abdellatif, M. E. (1985) Comparison of three fenitrothion controlled-release formulations as larvicides for Aedes aegypti (L.) (Diptera:Culicidae). J. econ. Ent. 78, 1187–1189.CrossRefGoogle ScholarPubMed