Skip to main content

Control of tsetse fly (Diptera: Glossinidae) populations using traps at Nguruman, south-west Kenya

  • R.D. Dransfield (a1), R. Brightwell (a1), C. Kyorku (a1) and B. Williams (a1)

A field trial was carried out in a Maasai group ranch to assess the use of odour-baited traps for suppression of a population of the tsetse fly Glossina pallidipes Austen. In January, 1987, local people made 100 NG2B traps in their homesteads. These were then deployed within the suppression zone of about 100 km2, primarily in the areas of woodland where flies aggregate in the dry season. Traps were baited with acetone (ca. 150 mg/h) and cow urine (ca. 1000 mg/h) and checked at monthly intervals in order to replenish odours and repair damage. A further 90 traps were added between October and December to enlarge the suppression area slightly and to strengthen the trap barriers. The population was monitored using biconical and NG2B traps as well as by mark-release-recapture estimates of population size. By October the number of G. pallidipes in the suppression zone was reduced by 98–99% relative to the number 3 km outside the suppression zone. Some reinvasion, mainly of parous females, occurred in November during the short rains but these flies were rapidly trapped out again. Average mortality rates due to trapping were estimated at 4–5% per day, which, combined with the natural mortality, reduced the adult population at a rate of about 2.6% per day during the dry season. The traps had less effect on the smaller population of G. longipennis Corti but still gave a reduction of up to 90% in the dry season. The use of this low technology approach offers good prospects for future community-based tsetse control operations.

Hide All
Allsopp, R. (1984) Control of tsetse flies (Diptera: Glossinidae) using insecticides: a review and future prospects. Bulletin of Entomological Research 74, 123.
Brightwell, R., Dransfield, R.D., Kyorku, C., Golder, T.K., Tarimo, S.A. & Mungai, D. (1987) A new trap for Glossina pallidipes. Tropical Pest Management 33, 151159.
Brightwell, R., Dransfield, R.D. & Kyorku, C. (in press) Development of a low-cost tsetse trap and odour baits for Glossina pallidipes and G. longipennis. Medical and Veterinary Entomology.
Caughley, G. (1977) Analysis of vertebrate populations. 234 pp. New York, John Wiley.
Challier, A. (1965) Amélioration de la méthode de détermination l'age physiologique des glossines. Études faites sur Glossina palpalis gambiensis Vanderplank 1949. Bulletin de la Société de Pathologie exotique et de ses Filiales 58, 250259.
Challier, A., Eyraud, M., Lafaye, A. & Laveissière, C. (1977) Amélioration du rendement du piège biconique pour glossines (Diptera, Glossinidae) par l'emploi d'un cône inférieur blue. Cahiers ORSTOM, série Entomologie médicate et Parasitologie 15, 283286.
Chizyuka, H.G.B. & Luguru, S.M.K. (1986) Dipping to control vectors of cattle parasites (Letter). Parasitology Today 2, 123.
Dransfield, R.D. & Brightwell, R. (1989) Problems of field testing theoretical models: a case study. Annales de la Société beige de Médecine tropicale 69, (Suppl. 1), 147154.
Dransfield, R.D., Brightwell, R., Chaudhury, M.F., Golder, T.K. & Tarimo, S.A.R. (1986a) The use of odour attractants for sampling Glossina pallidipes Austen (Diptera: Glossinidae) at Nguruman, Kenya. Bulletin of Entomological Research 76, 607619.
Dransfield, R.D., Chaudhury, M.F.B., Tarimo, S.A., Golder, T.K. & Brightwell, R. (1986b) Population dynamics of Glossina pallidipes under drought conditions at Nguruman, Kenya. pp. 284292in 18th Meeting of the International Scientific Council for Trypanosomiasis Research and Control, Harare, Zimbabwe, 1985. Nairobi, OAU/STRC.
Glasgow, J.P. (1970) The Glossina community. pp. 348381in Mulligan, H.W. (Ed.) The African trypanosomiases. London, George Allen and Unwin Ltd.
Gouteux, J.-P. (1983) Ecologie des glossines en secteur préforestier de Côte d'lvoire. 6. Etude comparative des populations de quatre espèces en zone de plantation. Cahiers ORSTOM, série Entomologie médicale et Parasitologie 21, 181197.
Gouteux, J.-P., Noireau, F., Sinda, D. & Frézil, J.-L. (1986) Essais du piège pyramidal contre Glossina palpalis palpalis (Rob.-Desv.) dans le foyer du Niari. Cahiers ORSTOM, série Entomologie médicale et Parasitologie 24, 181190.
Jackson, C.H.N. (1937) Some new methods in the study of Glossina morsitans. Proceedings of the Zoological Society of London 1936, 811896.
Kyorku, C. (1990) Trapping studies on Glossina longipennis at Nguruman, south-western Kenya. PhD thesis, University of Ghana, Legon.
Kyorku, C., Brightwell, R. & Dransfield, R.D. (in press) Traps and odour baits for the tsetse fly Glossina longipennis. Bulletin of Entomological Research.
Laveissière, C. & Couret, D. (1983) Conséquences d'essais de lutte répétés sur les proportions des espèces deglossines riveraines. Cahiers ORSTOM, série Entomologie médicale et Parasitologie 21, 6367.
Parker, R.A. (1955) A method for removing the effect of recruitment on Petersen-type population estimates. Journal of the Fisheries Research Board of Canada 12, 447450.
Rogers, D.J. (1985) Trypanosomiasis ‘risk’ or ‘challenge’: a review. Acta Tropica 42, 523.
Saunders, D.S. (1960) The ovulation cycle of Glossina morsitans Westwood (Diptera: Muscidae) and a possible method of age determination for female tsetse flies by the examination of their ovaries. Transactions of the Royal Entomological Society of London 112, 221238.
Vale, G.A., Lovemore, D.F., Flint, S. & Cockbill, G.F. (1988) Odour-baited targets to control tsetse flies, Glossina spp. (Diptera: Glossinidae), in Zimbabwe. Bulletin of Entomological Research 78, 3149.
Van Sickle, J. & Phelps, R.J. (1988) Age distributions and reproductive status of declining and stationary populations of Glossina pallidipes Austen (Diptera: Glossinidae) in Zimbabwe. Bulletin of Entomological Research 78, 5161.
Williams, B., Dransfield, R. & Brightwell, R. (in press) Tsetse fly population dynamics and the estimation of mortality rates from life-table data. Bulletin of Entomological Research.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Bulletin of Entomological Research
  • ISSN: 0007-4853
  • EISSN: 1475-2670
  • URL: /core/journals/bulletin-of-entomological-research
Please enter your name
Please enter a valid email address
Who would you like to send this to? *


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed