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Although it will still appear green, once infected, the stem of the plant will have a vertical yellow or brown band extending up its side.
Canola, Crops

Verticillium wilt found in Manitoba

Be on the lookout for this canola yield-stealer at the end of the season, when the plant begins to ripen

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Verticillium wilt, caused by Verticillium longisporum, was detected in canola in Manitoba last summer. While verticillium wilt is common in northern Europe — it’s the number one disease in oilseed crops in Sweden — this was the first case of the disease in an oilseed crop in North America. What is verticillium wilt? Verticillium longisporum […] Read more
(ProvenSeed.ca)
Canola, Crops

Canola program stacks genes against new clubroot

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Rather than send out a canola variety with a single source of resistance against clubroot — especially the disease’s most recent pathotype — Agrium’s CPS division has stacked several sources into the new hybrids it’s sending for testing this summer. Crop Production Services on Monday announced its “next generation” of Argentine canola hybrids shows “high […] Read more
clubroot in canola
Canola, Crops

Clubroot resistance for canola in jeopardy

Alberta researchers have found a clubroot pathogen, 5x, that can 
infect clubroot-resistant canola varieties

By
Anyone in the canola industry banking on clubroot-resistant varieties alone to stop the disease is in for a shock this spring, as Alberta researchers have discovered 16 more fields where resistance has broken. In 2014 researchers identified a clubroot pathotype, christened 5x, that had worn away resistance. Not all the resistance-busting pathotypes in the 16 […] Read more
(Alberta Farmer Express photo by Jennifer Blair)
Canola, Crops

Clubroots beating all resistant canolas across Alta.

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A study of 27 canola fields across Alberta has found 16 infected with clubroot pathotypes able to cause “high levels” of the disease — in canola plants with clubroot-resistant genetics. What’s more, the clubroot pathogen isolated from “many” of the infected fields in the study was virulent on all clubroot-resistant canola cultivars, the Canola Council of Canada […] Read more
clubroot disease in canola
Canola, Features

PCR tests for clubroot in canola

Early clubroot infection is difficult to detect with the naked eye. But a PCR test will do the job


By
Clubroot is an interesting disease. It is neither virus nor bacteria; it is not a plant or an animal. It is, in fact, a protist. What are protists? Protists are a large, diverse group of organisms; they are all eukaryotic (meaning their cells contain a nucleus and other organelles enclosed within membranes), and many are […] Read more
CS2000, shown here in field trials in August 2014, is billed as having “intermediate” resistance to the recently-discovered clubroot pathotype 5x. (BehindTheSeeds.ca)
Canola, Crops

Against clubroot, ‘I’-rated canola sits between ‘R’ and ‘S’

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A new canola variety billed with “intermediate” reaction against a new pathotype of clubroot is being placed in the zone between “resistant” and “susceptible.” Canterra Seeds, the Winnipeg firm marketing the new CS2000 hybrid variety, clarified its claim for the seed in a statement on a company blog Wednesday, granting many growers may be seeing the […] Read more

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