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    Effects of crop sanitation on banana weevil, Cosmopolites sordidus (Germar) (Coleoptera: Curculionidae), populations and crop damage in Uganda

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    S06ArtMasanzaEffectsInthomNodev.pdf (203.0Kb)
    Date
    2006
    Author
    Masanza, M.
    Gold, C.
    Huis, A. van
    Ragama, P.
    Type
    Journal Article
    Metadata
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    Abstract/Description
    Crop sanitation, i.e. destruction of crop residues, has been hypothesized to lower banana weevil damage by removing adult refuges and breeding sites. Although it has been widely recommended to farmers, limited data are available to demonstrate the efficacy of this method. The effects of crop sanitation on banana weevil populations and damage were studied in an on-station trial in Uganda. Treatments included low, moderate and high levels of sanitation. Banana weevil populations, estimated by trapping and mark and recapture methods, were lowest in the high sanitation treatment. However, banana weevil damage was either not significantly different among treatments or lower in low sanitation treatments. Similarly, increases in crop sanitation level were not reflected in higher yields. The data from this trial suggest that crop sanitation is not an effective means of managing banana weevil and contrasts with results from an on-farm study in which sanitation reduced both weevil numbers and damage. Possible factors explaining the different outcomes of the two studies are discussed.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3261
    IITA Subjects
    Pests Of Plants; Plant Breeding; Banana
    Agrovoc Terms
    Banana Weevil; Cosmopolites Sordidus; Crop Residues; Crop Sanitation; Highland Banana
    Regions
    Africa; East Africa
    Countries
    Uganda
    Collections
    • Journal and Journal Articles4835
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