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Use clubroot-resistant (CR) varieties as soon as clubroot arrives in the area. The CR trait will prevent most infection, which will help to keep spore counts low in fields that……
Grow CR varieties as soon as clubroot is in the area
January 10, 2019
Diseases
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Southern Alberta clubroot meeting at Indus, January 7
December 10, 2018
The Canola Council of Canada, Alberta Canola, and Rocky View County are hosting a Southern Alberta Clubroot Response Workshop on Monday, January 7 at the Indus Hall…
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Seed trait priorities: Disease resistance, maturity, seed treatment
November 8, 2018
When choosing canola hybrids for 2019, think through the yield, quality and profit achieved over the past few years and consider what factors may have reduced overall profitability. Add notes on harvestability. Then consider how seed traits could help manage any existing and potential challenges, reduce risk and improve profitability…
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How to contain a clubroot-infested patch
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:…
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Why tell people about your clubroot?
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…
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Terminology of genetic resistance and loss of resistance
November 8, 2018
These definitions help answer questions such as: How can we lose a resistance trait? How does a clubroot-resistant (CR) variety work one year and not the next?…
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Clubroot identified in Northern Sunrise County southeast of Peace River
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……
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How to test soils for the clubroot pathogen
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)…
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Clubroot identified in Rocky View County southeast of Calgary
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…