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

Bulletin of Entomological Research - Tập 80 Số 3 - Trang 265-276 - 1990
R. D. Dransfield1, R. Brightwell1, C. Kyorku1, Brian Williams1
1International Centre of Insect Physiology and Ecology, Nairobi, Kenya

Tóm tắt

AbstractA 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.

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Tài liệu tham khảo

10.1080/09670878709371136

10.1017/S0007485300009895

Gouteux, 1986, Essais du piège pyramidal contre Glossina palpalis palpalis (Rob.-Desv.) dans le foyer du Niari, Cahiers ORSTOM, série Entomologie médicale et Parasitologie, 24, 181

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.

10.1017/S0007485300016060

Caughley, 1977, Analysis of vertebrate populations, 234

10.1139/f55-025

Jackson, 1937, Some new methods in the study of Glossina morsitans, Proceedings of the Zoological Society of London, 1936, 811

10.1017/S0007485300016059

10.1111/j.1365-2311.1960.tb00499.x

Dransfield, 1989, Problems of field testing theoretical models: a case study, Annales de la Société beige de Médecine tropicale, 69, 147

Gouteux, 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, 181

Challier, 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, 250

Challier, 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, 283

10.1017/S000748530001511X

Dransfield, 1986, 18th Meeting of the International Scientific Council for Trypanosomiasis Research and Control, Harare, Zimbabwe, 1985, 284

Kyorku C. (1990) Trapping studies on Glossina longipennis at Nguruman, south-western Kenya. PhD thesis, University of Ghana, Legon.

10.1016/0169-4758(86)90046-3

Kyorku C. , Brightwell R. & Dransfield R.D. (in press) Traps and odour baits for the tsetse fly Glossina longipennis. Bulletin of Entomological Research.

Laveissière, 1983, Conséquences d'essais de lutte répétés sur les proportions des espèces deglossines riveraines, Cahiers ORSTOM, série Entomologie médicale et Parasitologie, 21, 63

Glasgow, 1970, The African trypanosomiases, 348

Rogers, 1985, Trypanosomiasis ‘risk’ or ‘challenge’: a review, Acta Tropica, 42, 5

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.

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Bulletin of Entomological Research

Tập 80 Số 3

265-276

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