• 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?

    Banana weevil, Cosmopolites sordidus (Germar), ovipositional preferences, timing of attack and larval survivorship in a mixed cultivar trial in Uganda

    Thumbnail
    View/Open
    S00ArtAberaBananaNothomDev.pdf (40.90Kb)
    Date
    2000
    Author
    Abera, A.
    Kyamanywa, S.
    Karamura, E.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    Host location, acceptance and larval success were studied in a mixed cultivar trial consisting of three East African cooking bananas, two East African beer banana and Kayinja (an exotic cultivar used for beer making). Weevil damage to the endemic cultivars was 5 to 25 times higher than that of Kayinja. Capture of weevils in pseudostem traps at the base of banana mats was highest for Kayinja, while egg density on Kayinja was similar to that of four endemic cultivars. Therefore, host location and acceptance do not appear to be factors in host plant resistance. In contrast, larval survivorship indices were 10 to 23 times higher in endemic cultivars than in Kayinja suggesting that larval success may be an important factor in resistance to banana weevils. Timing of attack was similar among cultivars. Oviposition occurred throughout the banana cycle with egg density increasing with plant age. These data provide a possible explanation of differences in weevil attack found among banana cultivars in Uganda.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3678
    IITA Subjects
    Banana; Food Security; Pests Of Plant; Plant Diseases; Plant Breeding; Diseases Control; Plant Production; Handling, Transport, Storage And Protection Of Agricultural Products; Farm Management; Markets; Nutrition; Smallholder Farmers
    Agrovoc Terms
    Banana Weevils; Kayinja; East African; Cooking Bananas; Cultivars; Ovipositional; Timing Of Attack; Larval Survivorship
    Regions
    Africa; East Africa
    Countries
    Uganda
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository