As clubroot disease spreads in western Canadian soil, growers who have yet to see symptoms in their fields have a decision to make on when they should they start growing varieties marketed as resistant to clubroot?

The Alberta Canola Producers Commission is sharing an informational brochure on clubroot resistance in canola and how to best use it as part of an integrated management plan.

The clubroot story in western Canada continues to be written as researchers are finding additional strains of the pathogen that are capable of overcoming genetic resistance, says Stephen Strelkov, plant pathology researcher at the University of Alberta.

Moist conditions in 2016 may have helped to fuel an aggressive advancement of clubroot pathotypes, many of which can quickly overcome current clubroot resistance traits, warns the Alberta Canola Producers Commission.