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New clubroot strains show genetic resistance isn’t enough to protect canola, say researchers
Nine new strains of clubroot a disease that can kill canola crops have been discovered in Western Canadian fields by University of Alberta researchers.
While that’s not good news for producers, the discovery shows how important it is to build a multi-pronged strategy for protecting their crops, not relying solely on canola plants bred to resist the disease, said lead researcher Keisha Hollman.
The discovery of the new pathogens in canola fields tested across Alberta, Saskatchewan and Manitoba in 2017 and 2018 means resistance breakdown first discovered in 2013 is growing.