• 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?

    Experimental evaluation of the efficiency of Epidinocarsis lopezi, a parasitoid introduced into Africa against the cassava mealybug Phenacoccus manihoti

    Thumbnail
    View/Open
    S86ArtNeuenschwanderExperimentalInthomNodev.PDF (2.324Mb)
    Date
    1986-10
    Author
    Neuenschwander, P.
    Schulthess, F.
    Madojemu, E.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
    Show full item record
    Abstract/Description
    The capability of Epidinocarsis lopezi (De Santis) (Hymenoptera: Encyrtidae) to control the cassava mealybug (CM) Phenacoccus manihoti Mat.-Ferr. (Homoptera: Pseudococcidae) was investigated in Nigeria using physical and chemical exclusion experiments. In two sleeve cage experiments CM populations, about 2 months after artificial infestation, were 7.0 and 2.3 × lower on artificially infested cassava tips covered with open cages than on tips in closed cages which excluded most parasitoids. On similarly infested but uncovered tips, CM populations were 24.3 and 37.5 × lower, and parasitisation rates were higher. In an artificially infested field which was treated weekly with carbaryl, parasitisation rates were below 10% and CM populations exceeded 200 per tip. In the chemically untreated plot, parasitisation rates were up to 25% and CM densities were mostly below 10 per tip. This study demonstrates the efficiency of E. lopezi in controlling its host under the experimental conditions.
    https://dx.doi.org/10.1111/j.1570-7458.1986.tb01013.x
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1885
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1111/j.1570-7458.1986.tb01013.x
    IITA Subjects
    Cassava; Disease Control; Pests Of Plants; Plant Diseases
    Agrovoc Terms
    Cassava; Population Density; Parasitoids; Epidinocarsis Lopezi; Encyrtidac. Phenacoccus Maniholi; Pseudococcidae; Cassava Mealybug; Biological Control; Efficiency
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Entomologia Experimentalis et Applicata
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository