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    First report and preliminary evaluation of cassava root necrosis in Angola

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    Journal Article (924.4Kb)
    Date
    2019-01-01
    Author
    Bakelana, Z.
    Laura, M.B.
    Mahungu, N.
    Mavila, N.
    Matondo, M.
    Nlandu, N.
    Lunfuankenda, M.
    Tevo, N.
    Monde, G.
    Pita, J.
    Lema, K.M.
    Kanana, T.
    Type
    Journal Article
    Review Status
    Peer Review
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    Cassava is a main staple food for 800 million people world-wide. Production is limited by pest and pathogens. The most devastating cassava viruses are Cassava Brown Streak Virus and Uganda Cassava Brown Streak Virusboth causing severe root necrosis called Cassava Brown Streak Disease. In the last 10 years, the Cassava Brown Streak Disease (CBSD)has spread across Africa from the east coast of Africa to central Africa. Similar root necrosis to cassava brown streak disease has also been identified in the Democratic Republic of Congo where the first symptoms were identified in 2002 in Kinshasa and Kongo central province. In 2012, the presence of CBSD was confirmed in eastern Democratic Republic of Congo. All attempts since 2002 in western Democratic Republic of Congo to identify the cause of these root necrosis have failed. In 2017, a team of scientists surveying the Songololo Territory in the Kongo central province at the northern Angola, identified the same root necrosis similar to CBSD in several localities bordering Angola. These unexpected results will foreshadow the presence of cassava root necrosis in Angola. This preliminary investigation in northern Angola was conducted specifically in the Zaire province and the territory of Mbanza Kongo at approximatively 62 kms from the Democratic Republic of Congo border in order to verify, whether or not, these root necrosis are present in Angola. Results obtained from this exploratory survey in several fields of the Zaire province and territory of Mbanza Kongo confirmed, for the first time, the presence of cassava root necrosis in Angola, similar to CBSD, as identified in western DRC.
    https://dx.doi.org/10.35410/ijaeb.2019.3746
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/6793
    Non-IITA Authors ORCID
    Nzola Mahunguhttps://orcid.org/0000-0002-3781-0838
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.35410/ijaeb.2019.3746
    Research Themes
    Biotech and Plant Breeding
    IITA Subjects
    Agronomy; Plant Breeding; Plant Diseases; Plant Health
    Agrovoc Terms
    CASSAVA; ROOTS; NECROSIS; ANGOLA; DEMOCRATIC REPUBLIC OF THE CONGO; DISEASES
    Regions
    Africa; Central Africa
    Countries
    Angola
    Hubs
    Central Africa Hub
    Journals
    International Journal of Agriculture, Environment and Bioresearch
    Collections
    • Journal and Journal Articles4835
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