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Prevalence of sorghum diseases in Nigeria

OAR@ICRISAT

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Relation http://oar.icrisat.org/3116/
http://dx.doi.org/10.1080/09670879309371809
 
Title Prevalence of sorghum diseases in Nigeria
 
Creator Pande, S
Harikrishnan, R
Alegbejo, M D
Mughogho, L K
Karunakar, R I
Ajayi, O
 
Subject Sorghum
 
Description A survey was conducted in farmers’ fields in Nigeria during the 1990 cropping season to determine the prevalence of sorghum diseases in the four major sorghum‐growing climatic zones (Sahel, Sudan, northern Guinea, and southern Guinea). The foliar diseases anthracnose (Colletotrichum graminicola) oval leaf spot (Ramulispora sorghicola) sooty stripe (Ramulispora sorghi) and grey leaf spot (Cercospora sorghi) were widely distributed. Anthracnose was predominant throughout the areas surveyed with ≥40% leaf area covered or destroyed by lesions in 70% of the surveyed fields. The incidence of other foliar diseases was low. Among the panicle diseases, long smut (Tolyposporium ehrenbergii) incidence was ≤10% in ≥20% farmers’ fields in the sahelian zone. Head (Sporisorium reilianum) covered (Sporisorium sorghi) and loose (Sphacelotheca cruenta) smuts were common, but their incidence varied from 1 to 10% in the Sahel, Sudan, northern Guinea and southern Guinea zones. Survey results based on ELISA indicated for the first time in Nigeria the presence of three virus diseases of sorghum: maize mosaic (maize mosaic virus), maize stripe (maize stripe virus), and a potyvirus in the Sudan, northern Guinea, and southern Guinea zones. Grain moulds, charcoal rot (Macrophomina phaseolina) and bacterial diseases were not observed during this survey.
 
Publisher Taylor & Francis
 
Date 1993
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/3116/1/JA_1350.pdf
Pande, S and Harikrishnan, R and Alegbejo, M D and Mughogho, L K and Karunakar, R I and Ajayi, O (1993) Prevalence of sorghum diseases in Nigeria. International Journal of Pest Management, 39 (3). pp. 297-303. ISSN 0967-0874