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International Journal of Tropical Insect Science

, Volume 10, Issue 5, pp 651–659 | Cite as

Efficiency of the Biconical Trap and Biases in Catches of Female and Tenerals of Glossina Pallidipes, Austen

  • Mary L. A. Owaga
Research Article

Abstract

A large number of male and female tenerals and young non-teneral female G. pallidipes were attracted to the exterior of the trap but appeared not to enter the trap readily. About 20% of tenerals of both sexes that visited the trap were captured in the retaining cage and the remaining 80% on the outside. The sex ratio of flies stuck on the outside was 1:1 whereas that of flies from the retaining cage was 1:1.5 females:males. The efficiency of the trap for non-teneral G. pallidipes was about 39%. Direct observation using binoculars from a stationary vehicle about 10–15 m from the trap showed that the catching efficiency of the biconical trap was 30% for a total of the four categories of non-teneral females and males, and teneral females and males.

Résumé

Des femelles ténérales et jeunes femelles no-ténérales de G. pallidipes ont été attirées par la partie extérieure de piège mais n’apparaissait pas entrer promptement dans le piège. A peu près 20% de ténérales de 2 sexes qui visitaient le piège ont été capturés dans la cage de retention et les 80% restant à l’exterieur. Le rapport femelle/mâle des insectes coincés sur la partie extérieure était de 1:1, alors que Celui des insectes capturés dans la cage de retention était de 1:1.5. L’efficacité de piège biconique s’est averée d’être environ 39% pour la capture de G. pallidipes non-ténérales. L’observation direct à partir d’un vehicule stationné à une distance d’à peu près 10–15 mètres utilisant les binoculaires a montré que l’efficacité de piège était de 30% pour 4 catégories de femelles non-ténérales, de mâles non-ténérales, de femelles ténérales et de mâles ténérales.

Key Words

Tsetse trap-efficiency catch-composition age structure trap-bias 

Mots Clefs

Tsétsé efficacité de piège composition de capture structure d’âge piège-prejugé 

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References

  1. Challier A. (1965) Amelioration de la methode de determination l’age physiologique des glossines: Etudes faites sur G. palpalis gambiensis Vanderblank. Bull. Soc. Pathol. Exot. 58, 250–259.Google Scholar
  2. Challier A. and Laveissière C. (1973) Un nouveau piège pour la capture des glossines (Glossina, Diptera). Description et essais sur le terrain. Cah. O.R.S.T.OM., Ser. Ent. Parasitol. 11, 251–262.Google Scholar
  3. Challier A. and Turner D. (1985) Methods to calculate survival rate in (Glossina) populations. Ann. Soc. belg. med. trop. 65, 191–197.PubMedGoogle Scholar
  4. Mulligan H.W. and Potts W.H. Eds. (1970) The African Trypanosomiasis. Allen and Unwin, London.Google Scholar
  5. Harley J.M.B. (1967) The influence of sampling method on the trypanosome infection rate of catches of Glossina pallidipes and G. fuscipes. Entomol. exp. appl. 10, 224–252.CrossRefGoogle Scholar
  6. Hargrove J.M. (1977) Some advances in the trapping of tsetse and other flies. Ecol. Entomol. 2, 123–137.CrossRefGoogle Scholar
  7. Hargrove J.M. (1980) Improved estimates of the efficiency of traps for Glossina morsitans morsitans. Bull. entomol. Res. 70, 579–587.CrossRefGoogle Scholar
  8. Hocking B. (1963) The use of attractants and repellents in vector control. Bull. W. H. O. 29 Suppl. 121–126.Google Scholar
  9. Jack W.R. (1941) Notes on the behaviour of Glossina pallidipes and G. brevipalpis and some comparisons with G. morsitans. Bull. entomol. Res. 31, 407–430.CrossRefGoogle Scholar
  10. Jackson C.H.N. (1946) An artificially isolated generation of tsetse flies (Diptera). Bull. entomol. Res. 37, 291–299.CrossRefGoogle Scholar
  11. Jackson C.H.N. (1948) The analysis of tsetse populations III. Ann. Eugen. 14, 91–108.CrossRefGoogle Scholar
  12. Langridge W.P. (1968) Tsetse fly traps and trapping methods. Proc. 12th Meeting OAU/ISCTRC. Bangui.Google Scholar
  13. Morris K.R.S. and Morris M.G. (1949) The use of traps against tsetse in West Africa. Bull. entomol. Res. 39, 491–528.CrossRefGoogle Scholar
  14. Moloo S.K. (1973) A new trap for Glossina pallidipes Aust. and G. fuscipes Newst. (Diptera: Glossinidae). Bull. entomol. Res. 63, 231–236.CrossRefGoogle Scholar
  15. Owaga Mary L.A. (1981) Relative efficiency of some mechanical traps used in the study of the tsetse species Glossina pallidipes Aust. Insect Sci. Applic. 1, 197–201.Google Scholar
  16. Owaga Mary L.A. and Challier A. (1985) Catch composition of the tsetse Glossina pallidipes Aust. in revolving and stationary traps with respect to age, sex ratio and hunger stage. Insect. Sci. Applic. 6, 711–718.Google Scholar
  17. Phelps R.J. and Vale G.A. (1978) Studies on populations of Glossina morsitans morsitans and G. pallidipes in Rhodesia. J. Appl. Ecol. 15, 743–760.CrossRefGoogle Scholar
  18. Pilson R.D. and Pilson B.M. (1967) Behaviour studies of Glossina morsitans Westw. in the field. Bull. entomol. Res. 57, 227–257.CrossRefGoogle Scholar
  19. Potts W.H. (1930) A contribution to the study of numbers of tsetse fly (Glossina morsitans West.) by quantitative methods. S. Afr. J. Sci. 27, 491–497.Google Scholar
  20. Saunders D.S. (1962) Age determination for female tsetse flies and the age composition of samples of G. pallidipes, G. palpalis fuscipes and G. brevipalpis. Bull. entomol. Res. 53, 579–595.CrossRefGoogle Scholar
  21. Saunders D.S. (1967) Survival and reproduction in a natural population of tsetse fly G. palpalis. Proc. R. Entomol. Soc. Lond. (A) 42, 129–137.Google Scholar
  22. Swynnerton C.F.M. (1933) Some traps for tsetse flies. Bull. entomol. Res. 24, 69–102.CrossRefGoogle Scholar
  23. Vale G.A. (1974) The responses of tsetse flies to mobile and stationary baits. Bull. entomol. Res. 64, 545–588.CrossRefGoogle Scholar
  24. van Etten J. (1981) Comparative studies on the relative efficiency of two trap types for two allopatric populations of Glossina pallidipes in Kenya. Entomol. exp. appl. 29, 209–217.CrossRefGoogle Scholar

Copyright information

© ICIPE 1989

Authors and Affiliations

  • Mary L. A. Owaga
    • 1
  1. 1.The International Centre of Insect Physiology and Ecology (ICIPE)NairobiKenya

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