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Demographic parameters of cowpea aphid Aphis craccivora (Homoptera: Aphididae) on different Botswana cowpea landraces

  • M. Machacha (a1), M. Obopile (a1), A.B.N. Tshegofatso (a1), B. Tiroesele (a1), C. Gwafila (a2) and M. Ramokapane (a2)...
Abstract

The variation in demographic parameters (namely survival and fecundity, intrinsic rate of natural increase pre-reproductive period and relative growth rate) was used to assess the resistance of cowpea landraces (namely B261-B, B383, B013-F, B339 and Blackeye, as a check) against cowpea aphid (Aphis craccivora Koch). The experiment was carried out from 18 March 2011 to 5 April 2011. The demographic parameters of A. craccivora differed significantly among varieties, supporting our prediction that cowpea landraces resistant to cowpea aphid would have a significant effect on the demographic parameters of the aphid. We recorded significantly lower survival, fecundity, intrinsic natural rate of increase and relative growth rate on the landraces B261-B and B383 compared with the other landraces. A significant delay in the pre-reproductive period was also found on B261-B and B383. The results showed that landraces B261-B and B383 have an increased level of resistance as shown by the extended pre-reproductive period and the reduction in population growth rate, survival and fecundity. This information will be used in the characterization of the landraces before being incorporated in the breeding programme in Botswana.

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*E-mails: mobopile@gmail.com, mobopile@bca.bw
References
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Caswell, G. H. (1984) The value of the pod in protecting cowpea seed from attack by bruchid beetles. Samaru Journal of Agricultural Research 2, 4955.
Diaz, B. M. and Fereres, A. (2005) Life table and population parameters of Nasonovia ribisnigri (Homoptera: Aphididae) at different constant temperatures. Environmental Entomology 34, 527534.
Diouf, D. (2011) Recent advances in cowpea [Vigna unguiculata (L.) Walp.] 'omics' research for genetic improvement. African Journal of Biotechnology 10 28032810.
Dixon, A. F. G. (1985) Structure of aphid populations. Annual Review of Entomology 30, 155174.
Hill, D. S. (1983) Agricultural Insect Pests of the Tropics and their Control. Cambridge University Press, Cambridge. 760 pp.
Holopainen, J. K. and Kainulainen, P. (2004) Reproductive capacity of the grey pine aphid and allocation response of Scots pine seedlings across temperature gradients: a test of hypotheses predicting outcomes of global warming. Canadian Journal of Forest Research 34, 94102.
Holopainen, J. K. and Kossi, S. (1998) Variable growth and reproduction response of the spruce shoot aphid, Cinara pilicornis, to increasing ozone concentrations. Entomologia Experimentalis et Applicata 87, 109113.
Jackai, L. E. N. and Daoust, R. A. (1986) Insect pests of cowpeas. Annual Review of Entomology 31, 95119.
Jackai, L. E. N., Goudou, C., Asiwe, J. A. N. and Tayo, B. O. (2001) Integrated control of the cowpea aphid using seed dressing and varietal resistance. Samaru Journal of Agricultural Research 17, 1323.
Kennedy, G. G. and Abou-Ghadir, M. F. (1979) Bionomics of the turnip aphid on two turnip cultivars. Journal of Economic Entomology 72, 754757.
Laamari, M., Khelfa, L. and Cœur d'Acier, A. (2008) Resistance source to cowpea aphid (Aphis craccivora Koch) in broad bean (Vicia faba L.) Algerian landrace collection. African Journal of Biotechnology 7, 24862490.
Maelzer, D. A. (1977) The biology and main causes of changes in numbers of the rose aphid, Macrosiphum rosae (L.), on cultivated roses in South Australia. Australian Journal of Zoology 25, 269284.
Obopile, M. (2006) Economic threshold and injury levels for control of cowpea aphid, Aphis craccivora Linnaeus (Homoptera: Aphididae) on cowpea. African Plant Protection 12, 111115.
Obopile, M. and Ositile, B. (2010) Life table and population parameters of cowpea aphid, Aphis craccivora Koch (Homoptera: Aphididae) on five cowpea Vigna unguiculata (L. Walp.) varieties. Journal of Pest Science 83, 914.
Ofuya, T. I. (1997) Control of the cowpea aphid, Aphis craccivora Koch (Homoptera: Aphididae) in cowpea, Vigna unguiculata (L.) Walp. Integrated Pest Management Reviews 2, 199207.
Pule-Meulenberg, F. and Dakora, F. D. (2009) Assessing the symbiotic dependency of grain and tree legumes on N2 fixation for their N nutrition in five agro-ecological zones of Botswana. Symbiosis 48, 6877.
SAS Institute (2003) SAS Users Guide: Statistics. SAS Institute, Cary, North Carolina.
Singh, S. R. (1987) Host plant resistance of cowpea insect pest management. Insect Science and Its Application 8, 765769.
Singh, S. R. and Jackai, L. E. N. (1985) Insect pests of cowpeas in Africa: their life cycle, economic importance, and potential for control, pp. 217231. In Cowpea Research, Production and Utilization (edited by ). John Wiley and Sons, Chichester.
Wyatt, I. J. and White, P. F. (1977) Simple estimation of intrinsic increase rates for aphids and tetranychid mites. Journal of Applied Ecology 14, 757766.
Youdeowei, A. (1989) Major arthropod pests of food and industrial crops in Africa and their economic importance, pp. 3150. In Biological Control: A Sustainable Solution to Crop Pest Problems in Africa (edited by ). IITA, Ibadan.
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International Journal of Tropical Insect Science
  • ISSN: 1742-7584
  • EISSN: 1742-7592
  • URL: /core/journals/international-journal-of-tropical-insect-science
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