Top Crop Manager

News Canola Diseases
Nine new clubroot strains discovered by University of Alberta researchers


March 20, 2021
By Top Crop Manager

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University of Alberta researchers have identified nine new strains of clubroot in Western Canadian fields. Canola fields were tested in Alberta, Manitoba and Saskatchewan in 2017 and 2018; the new pathogens are considered to result from the growing resistance breakdown first noticed in 2013.

Lead researcher Keisha Hollman notes this discovery shows the importance of developing a multi-pronged strategy for protecting canola from clubroot, rather than relying on resistant varieties.

The research conducted by Hollman and her fellow researchers, summarized here, was published in the most recent issue of the Canadian Journal of Plant Pathology. With the nine new strains identified, the number of known clubroot pathotypes is up to 36. |READ MORE

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