What is clubroot?

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 Clubroot is an infectious disease that can significantly reduce yield and quality, or even destroy a susceptible crop entirely, if infestation levels are high. Although clubroot itself is not new to Alberta, the first case reported in farm-grown canola in western Canada was in the Edmonton area in 2003, and it has continued to spread since.
Clubroot is a serious soil-borne disease of canola, mustard and other crops in the cabbage family. As the name suggests, roots of infected plants have a club-like (galled) appearance. Infection at the seedling stage can result in wilting, stunting and yellowing symptoms by the late rosette to early podding stage, while premature ripening or death can be observed in plants nearing maturity. Plants infected at later growth stages may not show wilting, stunting or yellowing, but may still ripen prematurely, and seeds may shrivel, thus reducing yield and quality.
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This document is maintained by Kelly Bernard.
This information published to the web on July 9, 2013.
Last Reviewed/Revised on June 28, 2017.