. Agri-news. Agriculture. September 15,2003 Potential for Clubroot in commercial vegetables Clubroot. a highly destructive fungal disease, has been confirmed in one canola field and reported as potentially present in a number of fields in the Edmonton area. The potential for spread to other fields and crops exists. This disease has been found in isolated vegetable fields in Alberta in the past. Soil conditions where pH is less than 7 increases the susceptibility of Clubroot and the disease is most severe in wet, acidic soils in the pH 5 to 6 range. "This disease could prove to be a signif
. Agri-news. Agriculture. September 15,2003 Potential for Clubroot in commercial vegetables Clubroot. a highly destructive fungal disease, has been confirmed in one canola field and reported as potentially present in a number of fields in the Edmonton area. The potential for spread to other fields and crops exists. This disease has been found in isolated vegetable fields in Alberta in the past. Soil conditions where pH is less than 7 increases the susceptibility of Clubroot and the disease is most severe in wet, acidic soils in the pH 5 to 6 range. "This disease could prove to be a significant detriment to the vegetable and canola ; says Rob Spencer, irrigated and specialty crop specialist. Ag-lnfo Centre. Stettler. "Commercial growers and market gardeners of cole crops such as cabbage, cauliflower, Chinese cabbage, broccoli, Brussels sprouts, kale, kohlrabi, and growers of rutabaga, turnip and radish need to understand the potential for this disease in their crops, particularly if their soil conditions are suitable for disease ; Clubroot {plasmodiopbora brassicae Mor.) is a fungal disease of cruciferous crops (canola, mustard spp., vegetable cole crops [cabbage, broccoli, cauliflower, Brussels sprouts, Chinese cabbage, kale, kohlrabi], turnips, rutabaga and radish). Clubroot infects the roots of host plants, resulting in gall formation. Infected plants become stunted due to a restriction in water and nutrient uptake. Older leaves may turn yellow and senesce and younger parts may be slightly blue and may wilt during the day, with possible recovery at night. "The clubroot pathogen is disseminated in water, contaminated soil or manure, and infected transplants," adds Spencer. "Galls break down and long-lived spores are released. Spores can remain viable for up to 18 ; Control Measures: • ensure rigorous sanitation is practiced. Ensure that all equipment and personnel leaving an infected field are f
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