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    Biological control of the cassava mealybug, Phenacoccus manihoti, by the exotic parasitoid Epidinocarsis lopezi in Africa [and Discussion]

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    Authors
    Neuenschwander, P.
    Herren, H.R.
    Harpaz, I.
    Badulescu, D.
    Akingbohungbe, A.E.
    Date
    1988-02
    Language
    en
    Type
    Journal Article
    Review status
    Peer Review
    Accessibility
    Limited Access
    Metadata
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    Citation
    Neuenschwander, P., Herren, H.R., Harpaz, I., Badulescu, D. & Akingbohungbe, A.E. (1988). Biological control of the cassava mealybug, Phenacoccus manihoti, by the exotic parasitoid Epidinocarsis lopezi in Africa. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 318(1189), 319-333.
    Permanent link to cite or share this item: http://hdl.handle.net/10568/80709
    DOI: https://dx.doi.org/10.1098/rstb.1988.0012
    Abstract/Description
    Since its accidental introduction into Africa, the cassava mealybug (CM) has spread to about 25 countries. The specific parasitoid Epidinocarsis lopezi, introduced from South America, its area of origin, into Nigeria in 1981, has since been released in more than 50 sites. By the end of 1986 it was established in 16 countries and more than 750 000 km<latex>$^2$</latex>. In southwestern Nigeria, CM populations declined after two initial releases, and have since remained low. During the same period, populations of indigenous predators of CM, mainly coccinellids, have declined, as have indigenous hyper-parasitoids on E. lopezi, because of scarcer hosts. Results from laboratory bionomic studies were incorporated into a simulation model. The model, field studies on population dynamics, and experiments excluding E. lopezi by physical or chemical means demonstrate its efficiency, despite its low reproductive potential.
    CGIAR Affiliations
    Roots, Tubers and Bananas
    AGROVOC Keywords
    BIOLOGICAL CONTROL AGENTS; INSECT PESTS; AFRICA; CASSAVA; PARASITOID; EPIDINOCARSIS LOPEZI; CASSAVA MEALYBUG
    Subjects
    CASSAVA; PESTS OF PLANTS
    Countries
    ANGOLA; CAMEROON; CONGO; MALAWI; NIGERIA; RWANDA; ZAMBIA
    Regions
    AFRICA; AFRICA SOUTH OF SAHARA; WEST AND CENTRAL AFRICA
    Investors/sponsors
    International Fund for Agricultural Development; International Fund for Agricultural Research; Governmental donor agencies of Austria; Food and Agriculture Organization of the United Nations; United States Agency for International Development
    Collections
    • IITA Journal Articles [2001]

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