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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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    S88ArtNeuenschwanderBiologicalInthomNodev.pdf (2.040Mb)
    Date
    1988-02-28
    Author
    Neuenschwander, P.
    Herren, H.R.
    Harpaz, I.
    Badulescu, D.
    Akingbohungbe, A.E.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    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.
    https://dx.doi.org/10.1098/rstb.1988.0012
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1724
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1098/rstb.1988.0012
    IITA Subjects
    Cassava; Pests Of Plants
    Agrovoc Terms
    Biological Control Agents; Insect Pests; Cassava; Parasitoid; Epidinocarsis Lopezi; Cassava Mealybug
    Regions
    Africa; Africa South Of Sahara; West And Central Africa
    Countries
    Angola; Cameroon; Congo; Malawi; Nigeria; Rwanda; Zambia
    Journals
    Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
    Collections
    • Journal and Journal Articles4835
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