Verticillium wilt

  • Identifying verticillium. Or is it blackleg, sclerotinia or grey stem?

    Verticillium wilt

    If whitened canola stems are peeling and have black spots under the peeled layer, the cause is likely verticillium. Seeing this? Please get it checked out and let us know. We’re trying to find out how widespread the disease is.

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  • Post-harvest scouting for verticillium and other diseases

    Verticillium wilt

    Verticillium on canola stems. Credit: Justine Cornelsen

    Disease scouting long after swathing is not usually the most accurate, as saprophytic organisms — those that feed on and break down dead material — move in fast and cloud the identification process. Verticillium is one disease that can be more obvious and easier to identify after cutting a canola crop.

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  • Verticillium stripe in canola

    Verticillium wilt

    V. stripe closeup on canola stem. Credit: Department of Crop Sciences, Plant Pathology and Plant Protection Section (von Tiedemann Lab), University of Goettingen, Germany

    Verticillium wilt of canola has been renamed verticillium stripe. Why? The pathogen in question, Verticillium longisporum, does not appear to produce wilt symptoms in canola, so the “wilt” name used to describe the potato and sunflower disease caused by the related fungus V. dahliae infection does not apply. Photo credit: Department of Crop Sciences, Plant Pathology and Plant Protection Section (von Tiedemann Lab), University of Goettingen, Germany

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  • Verticillium wilt and other unusual sightings

    Verticillium wilt

    Verticillium wilt in canola. Credit: MAFRD

    Verticillium wilt was found in a canola field in Manitoba in 2014, and a survey of approximately 1,000 fields across Canada is underway this summer and fall.

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  • Verticillium wilt committee to survey, set mgmt recommendations

    Verticillium wilt

    Verticillium wilt on canola. Source: MAFRD

    A verticillium wilt committee, with representatives from the Canola Council of Canada, the CFIA, AAFC, provincial canola grower organizations, provincial government specialists and life-science organizations, will examine the disease risk in Western Canada and come up recommendations for management. Step one is to survey more fields this summer and autumn.

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  • Verticillium wilt in Manitoba

    Verticillium wilt

    Verticillium wilt on canola. Source: MAFRD

    The Canola Council of Canada is working with the Canadian Food Inspection Agency and Manitoba Agriculture Food and Rural Development (MAFRD) to understand the implications of verticillium wilt. MAFRD announced the detection of Verticillium longisporum (a species of verticillium wilt) at a single location in Manitoba in early January. (Photo source: MAFRD)

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