November 8, 2018
If identified early enough and small enough, patches of soil infested with clubroot-causing Plasmodiophora brassicae can be managed in various ways to reduce the spore load in those patches and prevent clubroot from spreading beyond that patch. This excerpt from a November 2018 Canola Digest article describes patch management techniques:…
November 8, 2018
Farmers who discover clubroot early and take action should be commended. Not singled out. Not blamed. If you’re the first to find it in an area, it might mean you’re the most observant scouter or that nobody else has been brave enough to report their infestations yet. By coming forward, you and your neighbours have a chance to talk about…
October 9, 2018
Clubroot has been identified in canola southeast of Peace River in northern Alberta. Although clubroot has been found in various counties in Alberta since 2003, this is the first year……
September 26, 2018
Soil tests for clubroot can have two objectives: 1. Is the clubroot pathogen present? (Yes/No test) 2. What is the resting spore count per gram of soil? (Quantitative test)…
September 26, 2018
Clubroot has been identified in a canola field south of Calgary in Southern Alberta. Although clubroot has been found in various counties in Alberta since 2003, this is the first confirmed case of the disease in Rockyview County. For more about the discovery and what to do about it…
September 19, 2018
By this time of year, galls may start to break-down. Decaying galls will have a sawdust-like look and texture. If in doubt, send plant samples to a lab…
September 6, 2018
As we learned at the International Clubroot Workshop, genetic resistance to clubroot is failing at an increasing rate all around the world. To help reduce selection pressure for clubroot pathotypes……
September 6, 2018
Fall is a good time to control perennial and winter annual weeds, but spraying immediately after harvest may not provide the best results…
August 15, 2018
Three quick questions that may help you think differently about clubroot…
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