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    Control of storage insects as a means of limiting yam tuber fungal rots

    Access Status
    Fulltext not available
    Authors
    Morse, S.
    Acholo, M.
    McNamara, N.
    Oliver, Richard
    Date
    2000
    Type
    Journal Article
    
    Metadata
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    Citation
    MORSE S, ACHOLO M, McNAMARA N & OLIVER R (2000) Control of storage insects as a means of limiting yam tuber fungal rots. Journal of Stored Products Research 36 37-45
    DOI
    10.1016/S0022-474X(99)00025-9
    Faculty
    Department of Environmental & Agriculture
    School of Agriculture and Environment
    Faculty of Science and Engineering
    Remarks

    A copy of this item may be available from Professor Richard Oliver

    Email: Richard.oliver@curtin.edu.au

    URI
    http://hdl.handle.net/20.500.11937/29801
    Collection
    • Curtin Research Publications
    Abstract

    Yam rots caused by fungal pathogens (mostly Fusarium spp.) are a major cause of storage losses, and previous work has shown that fungal lesions were only found if there was pre-existing physical damage to the tuber. The general perception is that damage inflicted in the field prior to storage is far more important in this regard than damage caused during storage, and this has led to much research directed at the minimisation of field damage with relatively little work on the amelioration of insect damage during storage. This study examined whether insect damage inflicted on yam tubers during storage in specialised barns is an important agent in the incidence of fungal disease. It was found that treatment of tubers with insecticide dust (Actellic 2% Dust; ai=pirimiphos-methyl) significantly reduced fungal infections resulting from insect attack during storage. In addition, physical damage acquired during harvest appeared to be ameliorated by the insecticide, resulting in significantly fewer fungal lesions. The results suggest that insecticide treatment of yam tubers prior to storage could provide a relatively cheap and effective means of preservation.

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