Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-15T09:20:07.716Z Has data issue: false hasContentIssue false
  • English
  • Français

The susceptibility of Simulium damnosum s.l. larvae from the Volta River in southern Ghana to temephos after nearly eight years of intermittent treatment

Published online by Cambridge University Press:  19 September 2011

J. H. Adiamah ,
J. N. Raybould ,
D. Kurtak ,
A. Israel ,
B. T. A. Maegga  and
A. K. Opoku
J. H. Adiamah
Affiliation:
Volta River Authority Public Health Laboratory, P.O. Box 77, Akosombo, Ghana
J. N. Raybould
Affiliation:
WHO Onchocerciasis Control Programme, B.P. 549, Ouagadougou, Upper Volta
D. Kurtak
Affiliation:
WHO Onchocerciasis Control Programme, B.P. 549, Ouagadougou, Upper Volta
A. Israel
Affiliation:
National Institute for Medical Research, Amani Centre, P.O. Box 4, Amani, Tanzania
B. T. A. Maegga
Affiliation:
WHO Onchocerciasis Project, P.O. Box 538, Tikuyu, Tanzania
A. K. Opoku
Affiliation:
WHO Onchocerciasis Control Programme, B.P. 549, Ouagadougou, Upper Volta
Get access

Abstract

Nearly 8 years of intermittent treatments with temephos on the lower Volta River at Senchi Rapids, Ghana, produced no change in the susceptibility of larvae of the S. damnosum complex to temephos [Abate (R)]. In contrast, 14 months of temephos treatment in southern Ivory Coast produced resistance.

This difference can be explained by the relatively weak selection pressure exerted by the intermittent treatments on the Volta River and the frequent changes in the composition of the population as shown by cytotaxonomic identification of the larvae.

Résumé

Au Ghana, sur la Basse Volta, dans la zone des rapides de Senchi, huit ans de traitements intermittents au téméphos [Abate (R)] n'ont pas modifié la sensibilitéa à cet insecticide, les larves de simulies du complexe S. damnosum. En Côte d'Ivoire, au contraire, la résistance au téméphos s'est manifestée après 14 mois de traitements seulement. Cette différence pourrait s'expliquer par la faible pression insecticide exercée par les traitements intermittents de la Basse Volta et par les changements intervenant dans les populations simulidiennes de cette zone.

Keywords

Simulium damnosumGhanasusceptibilitytemephos
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 7 , Issue 1 , February 1986 , pp. 27 - 30
Copyright
Copyright © ICIPE 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Adiamah, J. H. (1973) Laboratory studies on simulium flies and resistance to DDT. Unpublished quarterly report January–March 1973, submitted to Volta River Authority, Accra, Ghana.Google Scholar
Finney, D. J. (1971) Probit Analysis, 3rd edn.Cambridge University Press.Google Scholar
Guillet, P., Escaffre, H., Ouedraogo, M. and Quillevere, D. (1981) Mise en evidence d'une resistance au téméphos dans le complexe Simulium damnosum (S. sanctipauli et S. soubrense) en Côte d'lvoire. Cah. ORSTOM Sér. ent. méd. Parasit. 17, 291–299.Google Scholar
Kuzoe, F. A. S. and Hagan, K. B. (1967) The control of Simulium damnosum (Diptera, Simuliidae) in the region of the Volta Dam. Ann. trap. Med. Parasit. 61, 338–348.CrossRefGoogle ScholarPubMed
Kuzoe, F. A. S. and Noamesi, G. K. (1973) Insecticide Resistance in Arthropods. World Health Organization Monograph Series, No. 38.Google Scholar
Mouchet, J., Quelennec, G., Berl, D., Sechan, Y. and Grebaut, S. (1977) Méthodologie pour tester la sensibilité aux insecticides des larves de Simulium damnosum. Cah. ORSTOM Sér. ent. méd. Parasit. 15, 55–66.Google Scholar
Traore-Lamizana, M., Berl, D. and Chauvet, G. (1981) Apparition de la résistance à l'Abate (R) de Simulium damnosum s.l. dans le cours inférieur de la Sanaga (République Unie du Cameroun). Rapport No. 2/81 Entomologie Médicale Centre Pasteur du Cameroun/ORSTOM (mimeo document).Google Scholar
Vajime, C. G. and Dunbar, R. W. (1975) Chromosomal identification of eight species of the subgenus Edwardesel-lum near and including Simulium damnosum Theobald (Diptera: Simuliidae). Tropenmed. Parasit. 26, 111–138.Google Scholar
Vajime, C. G. and Quillevere, D. (1978) The distribution of the Simulium damnosum complex in West Africa with particular reference to the Onchocerciasis Control Programme area. Tropenmed. Parasit. 29, 473–482.Google Scholar
WHO Onchocerciasis Control Programme (1980) Protocol for testing the susceptibility of larvae of Simulium damnosum s.l. to insecticides. Unpublished document for use in the Vector Control Unit of the Onchocerciasis Control Programme in the Volta River Basin area.Google Scholar
World Health Organization (1981) Instructions for determining the susceptibility or resistance of blackfly larvae to insecticides. Unpublished document. WHO/VBC/75.591.Google Scholar