Delobel, A.G.L. (1982) Effects of sorghum density on oviposition and survival of the sorghum shoot fly, Atherigona soccata. Entomologia Experimentalis et Applicata, 31 (2). pp. 170-174.
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Abstract
The effect of 6 different plant densities of sorghum on oviposition by Atherigona soccata Rond. was assessed by counting eggs 19 days after emergence of the crop. In low density plots (22 plants/m2), plants received 3.35 times more eggs than plants in the densest plots (704 plants/m2). In terms of egg density per unit area, the increase in plant density fitted the regression equation y = axb at lower densities, and y = a + b log x at higher densities. The relationship between plant density and oviposition is explained by the interaction of the deterring effect of an excess of vegetation with the non-attractiveness of plants grown at excessive densities. Larval mortality resulting from competition increased from high to low plant density
| Item Type: | Article |
|---|---|
| Author Affiliation: | International Centre of Insect Physiology and Ecology, PO Box 30772, Nairobi, Kenya |
| Subjects: | Atmosperic Science > Climatology Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 24 Apr 2012 13:47 |
| Last Modified: | 24 Apr 2012 13:47 |
| Official URL: | http://dx.doi.org/10.1111/j.1570-7458.1982.tb03130... |
| URI: | http://eprints.icrisat.ac.in/id/eprint/4937 |
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