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Catches of tsetse (Glossina spp.) (Diptera: Glossinidae) from traps and targets baited with large doses of natural and synthetic host odour

Published online by Cambridge University Press:  10 July 2009

J.W. Hargrove ,
M.T.P. Holloway ,
G.A. Vale ,
A.J.E. Gough  and
D.R. Hall
J.W. Hargrove*
Affiliation:
Tsetse Control Branch, Department of Veterinary Services, Harare, Zimbabwe
M.T.P. Holloway
Affiliation:
Tsetse Control Branch, Department of Veterinary Services, Harare, Zimbabwe
G.A. Vale
Affiliation:
Tsetse Control Branch, Department of Veterinary Services, Harare, Zimbabwe
A.J.E. Gough
Affiliation:
Natural Resources Institute, Chatham, Kent, UK
D.R. Hall
Affiliation:
Natural Resources Institute, Chatham, Kent, UK
*
Dr J. W. Hargrove, c/o Tsetse Control, Box CY52, Causeway, Zimbabwe.
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Abstract

In Zimbabwe, catches of Glossina morsitans morsitans Westwood and G. pallidipes Austen, at an odour source produced by up to 60 tonnes of cattle, fell by 90% from April to October 1987. With the time effect removed, the catches were: positively correlated with daily maximum temperature; up to twice as high with a trap as with an electrified target; and unaffected by the presence of an incomplete ring of electrified netting (11.5 m diameter) around the catching site. Catches increased as a power of bait mass in accord with the theory of odour dispersal. The power was ca. 0.32–0.44 for G. pallidipes, ca. 0.15 for post-teneral G. m. morsitans, 0.67 for Stomoxyinae and 0.48 for non-biting muscids. Earlier results from dose-response studies accord with the new model. Tsetse catches were 1.7–4.5 times higher with 20 tonnes of cattle as bait than with a synthetic simulate of this dose, consisting of carbon dioxide, acetone, butanone, octenol and phenolic residues. Important olfactory components thus remain to be identified. Trap efficiency for G. m. morsitans rose from 10–20% to 40% with increasing bait mass between 0 and 5 tonnes; thereafter bait mass had no effect. Increased efficiencies were also seen in Stomoxyinae (5 to 60%;) and in post-teneral G. pallidipes (45 to 70–80%). Increases in catch for bait mass greater than five tonnes were due to increased attraction rather than increased efficiency. Targets were 60–66% efficient for G. pallidipes, regardless of dose; for G. m. morsitans the efficiency was ca. 54% when unbajted and 24–35% when 60 tonnes of cattle were used as bait. The probability that G. pallidipes landed on the cloth part of the target, rather than colliding with the flanking nets, increased as the square of the bait mass for both sexes—from 0.11 to 0.22 for males and from 0.06 to 0.15 for females. There was no effect of bait mass on landing probability for G. m. morsitans and no difference between the sexes; ca. 11% of the catch landed on the cloth portion of the target. Efficiency and landing behaviour were independent of climate and season.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 85 , Issue 2 , June 1995 , pp. 215 - 227
Copyright
Copyright © Cambridge University Press 1995

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References

Bursell, E. (1961). Post-teneral development of the thoracic musculature in tsetse flies. Proceedings of the Royal Entomological Society, London (A) 36, 69–74.CrossRefGoogle Scholar
Flint, S. (1985) A comparison of various traps for Glossina spp. (Glossinidae) and other Diptera. Bulletin of Entomological Research 75, 529–534.CrossRefGoogle Scholar
Hall, D.R., Beevor, P.S., Cork, A., Nesbitt, B.F. & Vale, G.A. (1984) 1-Octen-3-ol: a potent olfactory stimulant and attractant for tsetse isolated from cattle odours. Insect Science and its Application 5, 153–163.Google Scholar
Hall, D.R., Gough, A.J.E., Adams, P.H., Beevor, P.S., Cork, A., Green, C.H., Smith, J.L., Taylor, J.H.L & Warnes, M.L. (1991) Identification of host odour attractants for tsetse flies. 130 pp. Fifth European Development Fund. Regional Tsetse and Trypanosomiasis Control Programme. Final Report.Google Scholar
Hargrove, J.W. (1980) Improved estimates of the efficiency of traps for Glossina morsitans morsitans Westwood and G. pallidipes Austen (Diptera, Glossinidae), with a note on the effect of the concentration of accompanying host odour on efficiency. Bulletin of Entomological Research 70, 579–587.CrossRefGoogle Scholar
Hargrove, J.W. (1988) Tsetse: the limits to population growth. Medical and Veterinary Entomology 2, 203–217.CrossRefGoogle ScholarPubMed
Hargrove, J.W. (1991) Ovarian ages of tsetse flies (Diptera: Glossinidae) caught from mobile and stationary baits in the presence and absence of humans. Bulletin of Entomological Research 81, 43–50.CrossRefGoogle Scholar
Hargrove, J.W. & Brady, J. (1992) Activity patterns of tsetse flies Glossina spp. (Diptera: Glossinidae) at low and high temperatures in nature. Bulletin of Entomological Research 82, 321–326.CrossRefGoogle Scholar
Hargrove, J.W. & Vale, G.A. (1978) The effect of host odour concentration on catches of tsetse flies (Glossinidae) and other Diptera in the field. Bulletin of Entomological Research 68, 607–612.CrossRefGoogle Scholar
Murlis, J., Elkinton, J.S. & Cardé, R.T. (1992) Odour plumes and how insects use them. Annual Review of Entomology 37, 505–532.CrossRefGoogle Scholar
Owaga, M.L.A., Hassanali, A. & McDowell, P.G. (1988) The role of 4-cresol and 3-n-propylphenol in the attraction of tsetse flies to buffalo urine. Insect Science and its Application 9, 95–100.Google Scholar
Packer, M.J. & Brady, J. (1990) Efficiency of electric nets as sampling devices for tsetse flies (Diptera: Glossinidae). Bulletin of Entomological Research 80, 43–47.CrossRefGoogle Scholar
Torr, S.J. (1989) Dose responses of tsetse flies (Glossina) to carbon dioxide, acetone and octenol in the field. Physiological Entomology 15, 93–103.CrossRefGoogle Scholar
Torr, S.J., Hall, D.R. & Smith, J.L. (1995) Responses of tsetse flies (Diptera: Glossinidae) to natural and synthetic ox odour. Bulletin of Entomological Research 85, 157–166.CrossRefGoogle Scholar
Turner, D.B. (1970) Workbook of atmospheric dispersion estimates. 84 pp. Environmental Protection Agency, Office of Home Programs, Research Triangle Park NC, USA.Google Scholar
Vale, G.A. (1974) The responses of tsetse flies (Diptera: Glossinidae) to mobile and stationary baits. Bulletin of Entomological Research 64, 545–588.CrossRefGoogle Scholar
Vale, G.A. (1982) Prospects for using stationary baits to control and study populations of tsetse flies (Diptera: Glossinidae). pp. 191–203 in Sterile insect technique and radiation in insect control. Vienna, International Atomic Energy Agency.Google Scholar
Vale, G.A. (1993a) Development of baits for tsetse flies (Diptera: Glossinidae). Journal of Medical Entomology 30, 831–842.CrossRefGoogle ScholarPubMed
Vale, G.A. (1993b) Visual response of tsetse flies (Diptera: Glossinidae) to odour-baited targets. Bulletin of Entomological Research 83, 277–289.CrossRefGoogle Scholar
Vale, G.A.& Hall, D.R. (1985) The use of 1-octen-3-ol, acetone and carbon dioxide to improve baits for tsetse flies, Glossina spp. (Diptera: Glossinidae). Bulletin of Entomological Research 75, 219–231.CrossRefGoogle Scholar
Vale, G.A. & Hargrove, J.W. (1979) A method of studying the efficiency of traps for tsetse flies (Diptera: Glossinidae) and other insects. Bulletin of Entomological Research 69, 183–193.CrossRefGoogle Scholar
Vale, G.A., Hall, D.R., & Gough, A.J.E. (1988a) The olfactory responses of tsetse flies, Glossina spp. (Diptera: Glossinidae), to phenols and urine in the field. Bulletin of Entomological Research 78, 293–300.CrossRefGoogle Scholar
Vale, G.A., Lovemore, D.F., Flint, S. & Cockbill, G.F. (1988b) Odour-baited targets to control tsetse flies, Glossina spp. (Diptera: Glossinidae), in Zimbabwe. Bulletin of Entomological Research 78, 31–49.CrossRefGoogle Scholar