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Effect of Weeds on Pre-flowering Insect Infestation and Seed Yield of Cowpea (Vigna unguiculata) in a Rainforest Area of Nigeria

Published online by Cambridge University Press:  03 October 2008

Tom I. Ofuya
Tom I. Ofuya
Affiliation:
Department of Crop Production, The Federal University of Technology, PMB 704, Akure, Nigeria
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Summary

Pre-flowering insect infestation of cowpea, Vigna unguiculata, was monitored in weedy and weed-free plots in 1986 and 1987 in Akure, Nigeria. Weediness generally reduced infestations of both the leafhopper, Empoasca dolichi, and the flea beatle, Ootheca mutabilis. However, seed yield was reduced in the weedy plots despite heavier pre-flowering insect populations in the plots kept weed-free.

Type
Research Article
Information
Experimental Agriculture , Volume 25 , Issue 3 , July 1989 , pp. 343 - 347
Copyright
Copyright © Cambridge University Press 1989

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References

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