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   Phytophthora cinnamomi  English 
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    此物种详细信息 Sierra Nevada
    状态: 外来
    入侵: 入侵
    出现纪录: ?????
    来源: Swiecki and Bernhardt 2003
    到达日期:
    简介:
    此地点的物种说明:
    Lone manzanita (Arctostaphylos myrtifolia) is a rare, endemic, evergreen shrub restricted to Ione formation soils (infertile, acidic, sedimentary oxisols) in the foothills of the Sierra Nevada, the widely distributed A. viscida (whiteleaf manzanita) intermixes with A. myrtifolia at the margins of Ione formation soils. Root and crown rot caused by P. cinnamomi on A. myrtifolia and A. viscida has been reported, please see Swiecki & Bernhardt, 2003 for the first report of root and crown rot affecting native stands of A. myrtifolia and A. viscida.
    此地点的管理信息:
    地点批注:
    影响:
    降低本地生物多样性: Ione manzanita (Arctostaphylos myrtifolia) is a rare, endemic, evergreen shrub restricted to Ione formation soils (infertile, acidic, sedimentary oxisols) in the foothills of the Sierra Nevada (near Ione). The widely distributed A. viscida (whiteleaf manzanita) intermixes with A. myrtifolia at the margins of Ione formation soils. Swiecki and Bernhardt (2003) examined mortality rates in this mixed vegetation and using scientific testing determined that wilting, foliage desiccation and root necrosis was being induced in the plants by the pathogenic fungus P. cinnamomi. This is the first report of root and crown rot caused by P. cinnamomi on A. myrtifolia and A. viscida. This disease will significantly impact conservation of the already threatened A. myrtifolia (Swiecki and Bernhardt 2003).
    最后修改 : 6/11/2007 3:31:44 p.m.


ISSG Landcare Research NBII IUCN University of Auckland