• Contact Us
    • Send Feedback
    • Login
    View Item 
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    •   Home
    • Journal and Journal Articles
    • Journal and Journal Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    Whole Repository
    CollectionsIssue DateRegionCountryHubAffiliationAuthorsTitlesSubject
    This Sub-collection
    Issue DateRegionCountryHubAffiliationAuthorsTitlesSubject

    My Account

    Login

    Welcome to the International Institute of Tropical Agriculture Research Repository

    What would you like to view today?

    Emergence, spread and strategies for controlling the pandemic of cassava mosaic virus disease in east and central Africa

    Thumbnail
    View/Open
    S99ArtLeggEmergenceInthomNodev.pdf (1.042Mb)
    Date
    1999
    Author
    Legg, J.P.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    During the 1990s, an epidemic of an unusually severe form of cassava mosaic virus disease (CMD) has expanded to cover virtually all of Uganda, and substantial areas in the neighbouring countries of Kenya, Tanzania, Sudan and the Democratic Republic of Congo. Losses in the generally sensitive local cassava cultivars have been so great that a common farmer response to the problem has been the temporary abandonment of cassava cultivation. As a consequence, the CMD `pandemic' has had a significant destabilising effect on food security in East Africa. In attempting to combat the problem, vigorous efforts have been made to identify, multiply and disseminate resistant cassava germplasm. This has included cultivars obtained from the breeding programme of the International Institute of Tropical Agriculture (IITA), based in Nigeria, as well as local selections derived from IITA parent stock. Whilst considerable success has been realised in controlling the pandemic in Uganda, addressing the problem at the regional level remains a major challenge. This article reviews progress made in recent years, both in understanding the cause and mechanisms behind the pandemic's expansion, and in developing strategies to control it. Particular attention is drawn to the likely threat the pandemic poses to cassava production in the countries of central Africa, most notably the Democratic Republic of Congo, where insecurity currently impedes an assessment of the problem and the ready implementation of control measures. Scientists and other stakeholders with an interest in CMD management are therefore urged to explore innovative mechanisms that will allow them to develop a more comprehensive approach to CMD control in the region.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4067
    IITA Subjects
    Cassava; Plant Diseases
    Agrovoc Terms
    African Cassava Mosaic Virus; Bemisia Tabaci; Diseases
    Regions
    Africa; East Africa; Central Africa
    Countries
    Uganda; Kenya; Tanzania; Sudan
    Collections
    • Journal and Journal Articles4842
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository