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Temephos resistance in Simulium damnosum Theobald (Diptera: Simuliidae): a comparative study between larvae and adults of the forest and savanna strains of this species complex

Published online by Cambridge University Press:  10 July 2009

J. Hemingway*
Affiliation:
London School of Hygiene and Tropical Medicine, Keppel Street, Gower Street, London, WCIE 7HT, UK
A. Callaghan
Affiliation:
London School of Hygiene and Tropical Medicine, Keppel Street, Gower Street, London, WCIE 7HT, UK
D. C. Kurtak
Affiliation:
Onchocerciasis Control Programme, World Health Organization, B.P. 549 Ouagadougou, Burkina Faso
*
* To whom all correspondence should be sent.

Abstract

Temephos resistance in savanna cytospecies of Simulium damnosum Theobald s.l. and the forest cytospecies S. sanctipauli Vajime & Dunbar, from West Africa is correlated with an increase in general esterase activity. Metabolism studies indicated that esterase products were the major metabolities in both forest and savanna resistant strains of S. damnosum s.l. compared to the susceptibles. In the presence of an esterase synergist, a large amount of the oxon analogue of temephos was produced by the resistant forest cytospecies S. sanctipauli. This strain is also resistant to chlorphoxim, and it is likely that the increase in oxidative activity observed is connected with the chlorphoxim rather than the temephos resistance. There was no evidence of glutathione transferase-, oxidase- or acetylcholinesterase-based temephos resistance machanisms in the savanna species of S. damnosum s.l.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1989

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References

Amin, A. M. & White, G. B. (1985). Resistance spectra and allelism of chlorpyrifos resistance factors in Culex quinquefasciatus populations from Colombo and Dar-es-Salaam.—Insect Sci. Applic. 6, 97103.Google Scholar
Anderson, J., Fuglsang, H., Hamilton, P. R. J.. & Marshal, T. F. de C. (1974). Studies on onchocerciasis in the United Cameroon Republic II. Comparison of onchocerciasis in rain forest and Sudan-savannah.—Trans. R. Soc. trop. Med. Hyg. 68, 209222.Google Scholar
Callaghan, A., Hemingway, J.. & Kurtak, D. C. (in press). Biochemical studies on chlorphoxim resistance in adults and larvae of the Simulium damnosum complex.—Pestic. Biochem. & Physiol.Google Scholar
Ffrench-Constant, R. H.. & Bonning, B. C. (1989). A rapid microtitre plate test distinguishes insecticide resistant acetylcholinesterase genotypes in Anopheles albimanus, An. nigerrimus and Culex pipiens.—Med. Vet. Entomol. 3, 916.Google Scholar
Georghiou, G. P.. & Pasteur, N. (1980). Organophosphate resistance and esterase pattern in a natural population of the southern house mosquito from California.—J. econ. Ent. 73, 489492.Google Scholar
Hemingway, J. (1985). Malathion carboxylesterase enzymes in Anopheles arabiensis from Sudan.—Pestic. Biochem. & Physiol. 23, 309313.Google Scholar
Hemingway, J., Rubio, Y.. & Bobrowicz, K. E. (1986). The use of ELISA demonstrates the absence of Culex organophosphorus-resistance-associated esterases in Anopheles species.—Pestic. Biochem. & Physiol. 25, 327335.Google Scholar
Kurtak, D. C. (1986). Insecticide resistance in the Onchocerciasis Control Programme.—Parasitol. Today 2, 2021.Google Scholar
Kurtak, D., Meyer, R., Ocran, M., Ouédraogo, M., Renaud, P., Sawadogo, R. O.. & Télé, B. (1987). Management of insecticide resistance in control of the Simulium damnosum complex by the Onchocerciasis Control Programme, West Africa: potential use of negative correlation between organophosphate resistance and pyrethroid susceptibility.—Med. Vet. Entomol. 1, 137146.Google Scholar
Pasteur, N., Georghiou, G. P.. & Iseki, A. (1984). Variation in organophosphate resistance and esterase activity in Culex quinquefasciatus Say from California.—Génétique, Sélection, Evolution 16, 271284.CrossRefGoogle ScholarPubMed
Pasteur, N.. & Sinègre, G. (1975). Esterase polymorphism and sensitivity to Dursban organophosphorous insecticide in Culex pipiens pipiens populations.—Biochem. Genetics 13, 789803.Google Scholar
Post, R. J. (1986). The cytotaxonomy of Simulium sanctipauli and Simulium soubrense (Diptera: Simuliidae).—Genetica 69, 191207.Google Scholar
Rowland, M.. & Hemingway, J. (1987). Changes in malathion resistance with age in Anopheles stephensi from Pakistan.—Pestic. Biochem. & Physiol. 28, 239247.Google Scholar
Vajime, C. G.. & Dunbar, R. W. (1975). Chromosomal identification of eight species of the subgenus Edwardsellum near and including Simulium (Edwardsellum) damnosum Theobald (Diptera: Simuliidae).—Tropenmed. & Parasitol. 26, 111138.Google Scholar
Villani, F.. & Hemingway, J. (1987). The detection and interaction of multiple organophosphorus and carbamate insecticide resistance genes in field populations of Culex pipiens from Italy.—Pestic. Biochem. & Physiol. 27, 218228.CrossRefGoogle Scholar
Villani, F., White, G. B., Curtis, C. F.. & Miles, S. J. (1983). Inheritance and activity of some esterases associated with organophosphate resistance in mosquitoes of the complex of Culex pipiens (Diptera: Culicidae).—Bull. ent. Res. 73, 153170.Google Scholar
Walsh, J. F., Philippon, B., Hendericks, J. E. E.. & Kurtak, D. C. (1987). Entomological aspects and results of the Onchocerciasis Control Programme.—Trop. Med. Parasit. 38, 5760.Google Scholar