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    New tree killer disease

    NewsEnvironment & Nature NewsThursday 20 October 2011
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    UK


    • As well as infecting several species of cypress trees, Phytophtora lateralis is also know to attack Pacific yews, a close relative of the UK's common yew
    • The fungal pathogen attacks the root system of host trees
    • Symptoms include foliage appearing slightly lighter, then withering shortly before the tree dies
    • A tree becomes infected by its roots coming into contact with spores in the soil or water
    • Researchers are not certain how the disease was introduced in South-West England
    • Cases of P. lateralis have also been recorded in Scotland and Northern Ireland
    • It is the latest outbreak of pathogens within the Phytophtora genus, with P. ramoram and P. kervoniae already killing trees in the UK

    Source: BBC News & Forest Research/Forestry Commission

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