Prevalence of sorghum diseases in Nigeria

    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

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    Abstract

    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.

    Item Type: Article
    Divisions: UNSPECIFIED
    CRP: UNSPECIFIED
    Subjects: Mandate crops > Sorghum
    Depositing User: Mr Charan Sai Ch
    Date Deposited: 23 Oct 2011 08:43
    Last Modified: 14 Sep 2013 12:26
    URI: http://oar.icrisat.org/id/eprint/3116
    Official URL: http://dx.doi.org/10.1080/09670879309371809
    Projects: UNSPECIFIED
    Funders: International Crops Research Institute for the Semi-Arid Tropics
    Acknowledgement: UNSPECIFIED
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