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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/20938


Title: Potential impact of intercropping on major cowpea field pests in Uganda
Authors: Nampala, P.
Ogenga-Latigo, M. W.
Kyamanywa, S.
Adipala, E.
Oyobo, N.
Jackai, L. E. N.
Keywords: Aphids, IPM, pod borers, pod sucking bugs, thrips, Vigna unguiculata  
Aphides, IPM, foreurs de gousses, suceurs de gousses, thrips, Vigna unguiculata  
Issue Date: 31-Dec-2002
Publisher: African Crop Science Society
Citation: African Crop Science Journal (ISSN: 1021-9730) Vol 10 Num 4
Abstract: Insect pests are perhaps the most important constraint to cowpea (Vigna unguiculata   L. Walp) production. In Uganda, aphids, thrips, pod sucking bugs and pod borers are ubiquitous and very devastating, sometimes leading to total crop failure. On-farm studies were conducted at 3 sites in eastern Uganda for three consective seasons to evaluate the use of intercropping as a pest control strategy in cowpea. Two local cowpea cultivars, Ebelat (Erect) and Icirikukwai (spreading) were grown as sole crops or intercropped with a local variety of greengram (Vigna radiata   ) or sorghum Sorghum bicolor   cv. Seredo. Aphids and thrips populations were significantly reduced in the cowpea + sorghum intercrop but were higher in the cowpea + greengram intercrop. In contrast, pod borer and pod sucking bug infestations and their associated damage were significantly higher in the cowpea + sorghum intercrop than in the other cropping systems. These results contradict previous reports and indicate that (a) not all pests are controlled by intercropping, (b) to be effective, intercropping has to be part of a pest management system that involves other control strategies, and (c) choice of a cropping system for IPM should consider the pest profile.
URI: http://hdl.handle.net/1807/20938
Other Identifiers: http://www.bioline.org.br/abstract?id=cs02032
Rights: Copyright 2002 - African Crop Science Society
Appears in Collections:Bioline International Legacy Collection

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