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Food selection by the variegated grasshopper, Zonocerus variegatus, L.: Feeding bioassay using crops and weeds

Published online by Cambridge University Press:  19 September 2011

J. O. Fasoranti  and
O. M. Olagunju
J. O. Fasoranti
Affiliation:
Department of Biological Sciences, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
O. M. Olagunju
Affiliation:
Department of Biological Sciences, University of Ilorin, P.M.B. 1515, Ilorin, Nigeria
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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.

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.

Keywords

Zonocerus variegatusfood selectionsupport for growth
Type
Articles
Information
International Journal of Tropical Insect Science , Volume 6 , Issue 6 , December 1985 , pp. 681 - 685
Copyright
Copyright © ICIPE 1985

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