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    Sampling lepidopterous pests on maize in West Africa

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    Date
    1991
    Author
    Schulthess, F., Bosque-Perez, N.A. & Gounou, S.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    The spatial distribution of five lepidopterous pests, Sesamia calamistis Hampson (Noctuidae), Eldana saccharina Walker (Pyralidae), Spodoptera exempta (Walker) (Noctuidae), Mussidia nigrivenella (Ragonot) (Pyralidae), and Cryptophlebia leucotreta (Meyrick) (Tortricidae), on maize in West Africa is described using Taylor's power law and the relationship of proportion of infested plants to the mean density. All five species showed a highly aggregated distribution, with Taylor's indices of aggregation ranging between 1.23 for C. leucotreta and 1.52 for Sesamia calamistis. Enumerative and binomial sampling plans that incorporate Taylor's power law are proposed to estimate mean densities of S. calamistis, C. leucotreta and the species complex consisting of E. saccharina, M. nigrivenella and Spodoptera exempta which showed similar spatial distributions, with a predefined reliability level.
    https://doi.org/10.1017/S0007485300033575
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/5906
    Digital Object Identifier (DOI)
    https://doi.org/10.1017/S0007485300033575
    IITA Subjects
    Maize
    Agrovoc Terms
    Spodoptera Exempta; Mussidia Nigrivenella; Cryptophlebia Leucotreta; Maize
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Collections
    • Journal and Journal Articles4835
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