• 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?

    Population simulation model of Sitophilus zeamais (Coleoptera: Curculionidae) in grain stores in West Africa

    Thumbnail
    Date
    1999
    Author
    Meikle, W.G.
    Holst, N.
    Markham, R.H.
    Type
    Journal Article
    Metadata
    Show full item record
    Abstract/Description
    The biology of Sitophilus zeamais Motschulsky, an important pest of stored commodities, is well described in the literature. To integrate current knowledge and to understand better the population dynamics of this species in rural maize, Zea mays L., stores, we developed a distributed-delay, demographic simulation model. Published equations describing the effects of temperature, humidity, and density effects on fecundity, juvenile survivorship and development and emigration were used or equations were estimated from published data and from laboratory experiments. Simulation model output was compared with S. zeamais density observed in field experiments before and after the introduction of Prostephanus truncatus (Horn) to West Africa. The overall phenology of the simulated beetle dynamics reflected that of field data, although the model output tended to overestimate beetle population growth early in the season. The model was modified using published data to simulate dynamics of populations developing on resistant and susceptible maize cultivars. The model is intended as part of a cost-effective tool for evaluating factors influencing population dynamics of stored-product pests and their natural enemies and to provide a framework for assessing different control strategies in an integrated control context.
    https://doi.org/10.1093/ee/28.5.836
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/4760
    Digital Object Identifier (DOI)
    https://doi.org/10.1093/ee/28.5.836
    IITA Subjects
    Maize; Pests Of Plants; Plant Diseases; Disease Control
    Agrovoc Terms
    Sitophilus Zeamais; Maize; Integrated Control
    Regions
    Africa; West Africa
    Collections
    • Journal and Journal Articles4835
    copyright © 2019  IITASpace. All rights reserved.
    IITA | Open Access Repository