Hostname: page-component-78c5997874-ndw9j Total loading time: 0 Render date: 2024-11-05T16:37:58.433Z Has data issue: false hasContentIssue false

The effect of a residual house-spraying campaign in East Africa on species balance in the Anopheles funestus group. The replacement of A. funestus Giles by A. rivulorum Leeson.

Published online by Cambridge University Press:  10 July 2009

M. T. Gillies
Affiliation:
East African Institute of Malaria and Vector-borne Diseases, Amani, Tanganyika.
A. Smith
Affiliation:
East African Institute of Malaria and Vector-borne Diseases, Amani, Tanganyika.

Extract

In the course of an experiment in malaria control in an inland region of Kenya and Tanganyika, by the use of house spraying with dieldrin, routine catches were maintained of mosquitos resting in artificial outdoor shelters. During the 18 months of the pre-spraying period, catches in the South Pare district of Tanganyika mainly consisted of the principal vectors, Anopheles gambiae Giles and A. funestus Giles, together with small numbers of A. rivulorum Leeson.

During the three years following the spraying, A. funestus disappeared almost completely from the catches, while A. rivulorum showed an increase of about seven times above its former level.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 1960

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

Draper, C. C. & Smith, A. (1957). Malaria in the Pare area of N.E. Tanganyika. Part I. Epidemiology.—Trans. R. Soc. trop. Med. Hyg. 51 pp. 137151.CrossRefGoogle Scholar
Gillies, M. T. (1954). Studies of house leaving and outside resting of Anopheles gambiae Giles and Anopheles funestus Giles in East Africa. I. The outside resting population.—Bull. ent. Res. 45 pp. 361373.CrossRefGoogle Scholar
Smith, A. & Draper, C. C. (1959). Malaria in the Taveta area of Kenya and Tanganyika. Part I. Epidemiology.—E. Afr. med. J. 36 pp. 99113.Google Scholar
Trapido, H. & Aitken, T. H. G. (1953). Study of a residual population of Anopheles l. labranchiae Falleroni in the Geremeas Valley, Sardinia.—Amer. J. trop. Med. Hyg. 2 pp. 658676.CrossRefGoogle ScholarPubMed