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    Countrywide distribution of fauna association with the cassva green mite (Mononychellus tanajoa) in Cameroon

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    S07ArtTchuanyoCountrywideNothomDev.PDF (504.8Kb)
    Date
    2007
    Author
    Tchuanyo, M.
    Yaninek, J.S.
    Hammond, W.
    Onzo, A.
    Lienou, L.
    Type
    Journal Article
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    Abstract/Description
    A survey of the distribution and abundance of cassava green mite and associated indigenous natural enemies found in the cassava agroecosystem in Cameroon was conducted during the 1991 dry season (January-February). The survey area included nine of the ten provinces of the country and covered 4.2 km. The list of pests, weeds and local phytoseiids found on cassava and associated crops/weeds in 46 fields is presented. Twenty four species of phytoseiid mites were recorded, with Typhlodromalus saltus mostly found on cassava while Typhlodromips shi was more prevalent on weeds and fruit trees. The densities of M. tanajoa in the regions are also determined. This pest was found everywhere, with the highest densities in the Highland savannah (230 actives/leaf) and transitional zone (143 actives/leaf). These densities remained high despite the presence of local phytoseiids. The lowest densities were recorded in the forest zone (5 actives/leaf). No mites (either phytophagous or predaceous) were found in the Northern region. There is need to introduce exotic phytoseiids to control the M. tanajoa populations in Cameroon. A classical biological control program, combined with other compatible control methods such as cultural practices and host plant resistance, is recommended to combat this exotic pest in Cameroon.
    http://dx.doi.org/10.4314/cjas.v3i2.48371
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3163
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.4314/cjas.v3i2.48371
    IITA Subjects
    Cassava; Pests Of Plants; Plant Diseases; Disease Control; Plant Ecology
    Agrovoc Terms
    Cassava Green Mite; Mononychellus Tanajoa; Fauna; Tetranychidae; Phytoseiids; Biological Control; Agro-Ecosystem; Acarien Vert Du Manioc; Mononychellus Tanajoa; Faune; Tetranychidae; Phytoseiids; Lutte Biologique; Agro-Ecosystem
    Regions
    Africa; Central Africa
    Countries
    Cameroon
    Collections
    • Journal and Journal Articles4835
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