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International Journal of Tropical Insect Science

, Volume 6, Issue 6, pp 681–685 | Cite as

Food Selection by the Variegated Grasshopper, Zonocerus variegatus, L.

Feeding Bioassay Using Crops and Weeds
  • J. O. Fasoranti
  • O. M. Olagunju
Article

Abstract

Early instars of Zonocerus variegatus fed on most weeds, but preferred those in the families Euphorbiaceae and Solanaceae. Plants that were accepted initially were lesser consumed than later chosen ones. Although there was no apparent difference between weights of nymphs fed on cassava and other plants in the first 9 weeks; thereafter, cassava fed insects excelled others. Somatic growth was not affected by feed type.

Key Words

Zonocerus variegatus food selection support for growth 

Résumé

De jeunes stades de Zonocerus Variegatus se sont nourris de la plupart des herbes mais ont préféré celles appartenant aux familles Euphorbiaceae et Solanaceae. Les plantes qui étaient acceptées initialement furent moins consommées que celles choisies. Bien qu’il n’y eut apparemment auchune différence entre les poids des nymphes nourries au manioc et a d’autres plantes au cours des neuf premières semaines, les insectes nourris au manioc étaient de loin mieux portants que les autres. La croissance somatique n’était pas affectée par le type d’alimentation.

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References

  1. Anonymous (1974) Control of Zonocerus variegalus L. in Nigeria. Second interim report. Ministry of Overseas Development/University of Ibadan (ODM Research Scheme R272), pp. 15–48.Google Scholar
  2. Anya A. O (1973) Ecology of the variegated grasshopper Zonocerus variegatus (Orthoptera; Acridoidea; Pyrgomorphidae) on the Nsukka Plateau, Nigeria. Entomologia, exp. appl. 16, 64–76.CrossRefGoogle Scholar
  3. Bernays E. A., Chapman R. F., Cook A. G., McVeigh L. J. and Page W. W. (1975) Food plants in the survival and development of Zonocerus variegatus (L.). Acrida 4, 33–45.Google Scholar
  4. Bernays E. A., Chapman R. F., Leather E. M., McCuffery A. R. and Modder W. W. D. (1977) The relationship of Zonocerus variegatus (L.) (Acridoidea: Pyrgomorphidae) with cassava (Manihot esculenta). Bull. ent. Res. 67, 391–404.CrossRefGoogle Scholar
  5. Golding F. D. (1948) The Acrididae (Orthoptera) of Nigeria. Trans. R. ent. Soc. Lond. 99, 517–587.CrossRefGoogle Scholar
  6. Hsiao T. H. and Fraenkel G. (1968) Selection and specificity of the Colorado potato beetle for solanaceous and non-solanaceous plants. Ann. ent. Soc. Am. 61, 493–503.CrossRefGoogle Scholar
  7. Iheagwam E. U. (1979) Host plant effects on fecundity and adult survival of Zonocerus variegatus (Orthoptera: Pyrgomorphidae). Revue Zool. afr. 39, 760–765.Google Scholar
  8. Jerath M. L. (1965) Notes on the biology of Zonocerus variegatus L. from eastern Nigeria. Revue Zool. Bot. afr. 72, 243–251.Google Scholar
  9. Kaufmann T. (1965) Observation on aggregation, migration and feeding habits of Zonocerus variegatus in Ghana. Ann. ent. Soc. Am. 58, 426–436.CrossRefGoogle Scholar
  10. Libby J. L. (1968) Insect pests of Nigerian crops. University of Wis. Res. Bull. Vol. 269.Google Scholar
  11. McCaffery A. R., Cook A. G. and Perfect J. J. (1978) Utilization of food by Zonocerus variegatus (L.) (Orthoptera: Pyrgomorphidae). Bull. ent. Res. 68, 589–606.CrossRefGoogle Scholar
  12. Modder W. W. D. and Singh S. R. (1976) Utilization of cassava, Manihot esculenta, in the laboratory by the later instars of the African grasshopper, Zonocerus variegatus (L.) (Acridoidea: Pyrgomorphidae). Revue Zool. afr. 90, 417–430.Google Scholar
  13. Thorsteinson A. J. (1960) Host selection in phytophagous insects. A. Rev. Ent. 5, 193–218.CrossRefGoogle Scholar
  14. Toye S. A. (1971) Notes on the biology of Zonocerus variegatus (L.) (Orthoptera, Acridoidea) in the Western State of Nigeria. Revue Zool. Bot. afr. 48, 384–392.Google Scholar
  15. Toye S. A. (1974) Feeding and locomotry activities of Zonocerus variegatus (L.) (Orthoptera: Acridoidea). Revue Zool. afr. 66, 205–212.Google Scholar
  16. Youdeowei A. (1974) The dissection of the variegated grasshopper Zonocerus variegatus (L.). Oxford University Press, Ibadan. Thesis.Google Scholar
  17. Zar J. H. (1974) Biostatistical Analysis. Prentice-Hall, New York.Google Scholar

Copyright information

© ICIPE 1985

Authors and Affiliations

  • J. O. Fasoranti
    • 1
  • O. M. Olagunju
    • 1
  1. 1.Department of Biological SciencesUniversity of IlorinIlorinNigeria

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