Verticillium stripe - a disease first discovered in Western Canada in 2014 - appears to be taking advantage of the stress to canola plants caused by an old, familiar disease pathogen.
While research to understand Verticillium longisporum in the Prairies is still in its early stages, there's a hypothesis that its prevalence in a canola field could be linked with earlier infection from blackleg.
The combination of the two diseases may have been to blame for some disappointing yields in 2022, explains Chris Manchur, agronomy specialist with the Canola Council of Canada.
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