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Bemisia tabaci (Hemiptera: Aleyrodidae) trap catches in a cassava field in Côte d'Ivoire in relation to environmental factors and the distribution of African cassava mosaic disease

Published online by Cambridge University Press:  10 July 2009

J. Colvin ,
L.D.C. Fishpool ,
D. Fargette ,
J. Sherigton  and
C. Fauquet
J. Colvin*
Affiliation:
Natural Resources Institute, Central Avenue, Chatham Maritime, Kent, ME4 4TB, UK:
L.D.C. Fishpool
Affiliation:
Natural Resources Institute, Central Avenue, Chatham Maritime, Kent, ME4 4TB, UK:
D. Fargette
Affiliation:
Laboratoire de Phytovirologie, ORSTOM, Abidjan, Côte d'Ivoire
J. Sherigton
Affiliation:
Natural Resources Institute, Central Avenue, Chatham Maritime, Kent, ME4 4TB, UK:
C. Fauquet
Affiliation:
Laboratoire de Phytovirologie, ORSTOM, Abidjan, Côte d'Ivoire
*
* Fax: 01634 883379 E-mail: john.colvin@nri.org
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Abstract

African cassava mosaic virus (ACMV), vectored by the whitefly, Bermisia tabaci (Gennadius), is considered the most damaging pathogen of any African crop. Information about vector movement is important for understanding the epidemiology of this disease and the experiments reported here were designed to examine B.tabaci flight activity both in and around a cassava crop in relation to time of day, crop growth stage, wind direction and speed, and to the resulting pattern of infected plants within the field at harvest. At wind speeds of <0.4 ms−1 adult B. tabaci approached the yellow traps by flying upwind. At greater wind speeds, significantly fewer B. tabaci adults approached the traps from downwind, thus reversing the directionally of the catch. When the direction of the prevailing south-west wind reversed, so did the directionality of the catch. Bemisia tabaci adults were flight active throughout the day and the greatest percentage were caught above the canopy between 06.00–08.00 h, when wind speeds were lowest. Trap height and position significantly affected catch with the greatest numbers caught on the lowest traps. More than three times as many B. tabaci adults were caught on traps situated downwind from the field compared to those upwind. Suggesting that the field was acting as a source of whiteflies. In both years, Africa cassava mosaic disease (ACMD) incidence was highest and lowest, respectively, on the edges and in the middle of the trials, with the highest incidence occuring on the edges facing the prevailing wind direction. These results are discussed in relation to the epidemiology of ACMD and to potential cultural control methods such as the use of ACMD-resistant guard rows to protect a mainly susceptible crop.

Type
Research Article
Information
Bulletin of Entomological Research , Volume 88 , Issue 4 , August 1998 , pp. 369 - 378
Copyright
Copyright © Cambridge University Press 1998

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References

Berlinger, M.J. (1986) Host plant resistance to Bemisia tabaci. Agriculture, Ecosystems and Environment 17, 69–82.Google Scholar
Blackmer, J.L. & Byrne, D.N. (1993) Flight behaviour of Bemisia tabaci in a vertical flight chamber: effect of time of day, sex, age and host quality. Physiological Entomology 18, 223–232.CrossRefGoogle Scholar
Burban, C., Fishpool, L.D.C., Fauquet, C., Fargette, D. & Thouvenel, J.C. (1992) Host-associated biotypes within West African populations of the whitefly Bemisia tabaci (Genn.) (Hom.: Aleyrodidae). Journal of Applied Entomology 113, 416–423.CrossRefGoogle Scholar
Dubern, J. (1979) Quelques propriétés de la Mosaïque Africaine du Manioc. I: La transmission. Phytopathologische Zeitschrift 96, 25–39.Google Scholar
Dubern, J. (1994) Transmission of African cassava mosaic geminivirus by the whitefly (Bemisia tabaci). Tropical Science 34, 82–91.Google Scholar
Fargette, D. (1987) Epidémiologie do la mosaïque africaine du manioc en Côte d'Ivoire. PhD thesis ORSTOM, Paris.Google Scholar
Fargette, D. & Vié, (1994) Modelling the temporal primary spread of African cassava mosaic virus into plantings. Phytopathology 84, 378–382.Google Scholar
Fargette, D., Fauquet, C. & Thouvenel, J.C. (1985) Field studies on the spread of African cassava mosaic. Annals of Applied Biology 106, 285–294.Google Scholar
Fargette, D., Fauquet, C. & Thouvenel, J.C. (1988) Yield losses induced by African cassava mosaic virus in relation to the mode and the dates of infection. Tropical Pest Management 34, 89–91.Google Scholar
Fargette, D., Fauquet, C., Grenier, E. & Thresh, J.M. (1990) The spread of African cassava mosaic virus into and within cassava fields. Journal of Phytopathology 130, 289–302.Google Scholar
Fargette, D., Jeger, M., Fauquet, C. & Fishpool, L.D.C. (1994) Analysis of temporal disease progress of African cassava mosaic virus. Phytopathology 84, 91–98.CrossRefGoogle Scholar
Fauquet, C. & Fargette, D. (1990) African cassava mosaic virus: etiology, epidemiology and control. Plant Disease 74, 404–411.Google Scholar
Fauquet, C., Fargette, D. & Thouvenel, J.C. (1988) Some aspects of the epidemiology of African cassava mosaic virus in Ivory Coast. Tropical Pest Management 34, 92–96.Google Scholar
Fishpool, L.D.C., van Helden, M., van Halder, I., Fauquet, C. & Fargette, D. (1988) Monitoring Bemisia tabaci populations in cassava: field counts and trap catches. pp. 64–76 in Proceedings of the International Seminar on African Cassava Mosaic Disease, 4–8 May 1987, Yamoussoukro, Côte d'Ivoire. Wageningen, CTA.Google Scholar
Fishpool, L.D.C., Fauquet, C., Fargette, D., Thouvenel, J.C., Burban, C. & Colvin, J. (1995) The phenology of Bemisia tabaci (Homoptera: Aleyrodidae) populations on cassava in southern Côte d'Ivoire. Bulletin of Entomological Research 85, 197–207.CrossRefGoogle Scholar
Geddes, A.M.W. (1990) The relative importance of crop pests in sub-Saharan Africa. Natural Resources Institute Bulletin no. 36, 69 pp.Google Scholar
Genstat 5 Release 3 (1993) Oxford University Press, Oxford. 796 pp.Google Scholar
Gerling, D. & Horowitz, A.R. (1984) Yellow traps for evaluating the population levels and dispersal patterns of Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae). Annals of the Entomological Society of America 77, 753–759.CrossRefGoogle Scholar
Glick, P.A. & Noble, L.W. (1961) Airborne movement of the pink bollworm and other arthropods. Technical Bulletin of the USDA 1255, 20 pp.Google Scholar
Kennedy, J.S. (1986) Migration, behavioural and ecological. pp. 1–20in Rankin, MA. (Ed.) Migration: mechanisms and adaptive significance. Contributions in Marine Science, 27, Suppl.Google Scholar
Lecoustre, R., Fargette, D., Fauquet, C. & Reffye, P. (1989) Analysis and mapping of the spatial spread of African cassava mosaic virus using geostatistics and the kriging technique. Phytopathology 79, 913–920.Google Scholar
Legg, J.P. (1995) The ecology of Bemisia tabaci (Gennadius) (Homoptera: Aleyrodidae), vector of African cassava mosaic virus in Uganda. PhD thesis, University of Reading.Google Scholar
Otim-Nape, G.W., Thresh, J.M. & Fargette, D. (1996) Bemisia tabaci and cassava mosaic disease in Africa. pp. 319–350 in Gerling, D. & Mayer, R.I. (Eds) Bemisia: 1995 taxonomy, biology, damage, control and management. Andover, Intercept.Google Scholar
Storey, H.H. & Nichols, R.F. (1938) Studies on the mosaic disease of cassava. Annals of Applied Biology 25, 790–806.Google Scholar
Thresh, J.M., Fishpool, L.D.C., Otim-Nape, G.W. & Fargette, D. (1994) African cassava mosaic virus disease: an under-estimated and unsolved problem. Tropical Science 34, 3–14.Google Scholar
Vale, G.A. (1983) The effects of odours, wind direction and wind speed on the distribution of Glossina (Diptera: Glossinidae) and other insects near stationary targets. Bulletin of Entomological Research 73, 53–64.Google Scholar
Warburg, O. (1894) Die Kulturpflazen usambaras. Mitteilungen aus den Deutschen, Schutzgebieten 7, 131.Google Scholar
Yao, N.R., Fargette, D. & Fauquet, C. (1986) Communication au Colloque sur l'Agrométéorologie et de Ia Protection des Cultures dans les zones semi-arides. Niamey, 8–12 Décembre 1986, 20 pp.Google Scholar