A simple tentative model of the losses caused by the Senegalese grasshopper,Oedaleus senegalensis (Krauss 1877) to millet in the Sahel |
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| Authors: | A.B. Bal Z. Ouambama A. Moumouni I. Dieng I.H. Maiga S. Gagare |
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| Affiliation: | 1. UFR S2ATA, Université Gaston Berger BP. 234, Saint-Louis, Senegalamadou-bocar.bal@ugb.edu.sn;3. Centre Régional AGRHYMET, Niamey, Niger;4. Direction de la protection des Végétaux, Niamey, Niger |
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| Abstract: | Oedaleus senegalensis is a serious pest of millet in the Sahel, but the correlation to crop loss remains largely unknown. Therefore, the correlation between densities of O. senegalensis, defoliation level and millet yields was investigated in Niger in 2008, and a simple model to foresee the yield based on these parameters was developed. The yield was significantly correlated to both the density of O. senegalensis and the defoliation level on 17 September. The best model to foresee millet yield involved grasshopper density and cumulated rainfall and may be regarded a tentative method in O. senegalensis control. |
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| Keywords: | Nested models Niger Pearl millet Pennisetum glaucum Sahel |
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