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The discovery of a new strain of clubroot in Manitoba is a reminder that all canola growers need to have a clubroot management plan, the canola council says.
Canola, Crops, News

New clubroot strain found in Manitoba sends a message to all canola growers

Discovery is a reminder growers need to ‘take this disease seriously and implement clubroot management plans’

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The discovery of a new clubroot strain not controlled by traditional resistant canola varieties underscores the need to be proactive in keeping clubroot spore numbers low. “This is yet another cue for the industry to continue to take this disease seriously and implement clubroot management plans,” said Dan Orchard, agronomy specialist with the Canola Council […] Read more
Canola, Crops

Clubroot able to beat resistant canola reaches Manitoba

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A strain of clubroot able to club the roots of some resistant canola varieties has made its way east to Manitoba. Manitoba’s agriculture department reported Friday that clubroot pathotype 3A — a strain that can “overcome some first-generation sources of genetic resistance” in commercial canola — has been positively identified in the south-central rural municipality […] Read more
Canola, News

New video on how to manage clubroot

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The Canola Council of Canada has a new clubroot video focusing on key management strategies for dealing with the disease. The 15-minute video outlines steps for minimizing the risk of introducing the disease-causing pathogen to a farm, including the three stages for cleaning equipment so it doesn’t bring contaminated soil to a field. It also […] Read more
Clubroot galls are the sure sign the disease is present, but dead patches in the field should also be easy to spot at swathing time. 
Canola, News

Wind seems to be the clubroot culprit in Manitoba

Researcher urges producers to watch for early infestations and get on them quickly

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It looks like clubroot is moving a bit differently on the east side of the Prairies. In Alberta, clubroot is showing up a lot at field entrances (in 90 per cent of the infected fields, according to one study), which suggests equipment is the main culprit in its spread. It’s a similar pattern in Saskatchewan […] Read more
This plant was found in 2017 in a trial plot of a resistant variety that Scott Keller was growing. It turns out that bags of resistant varieties aren’t pure — and so a percentage could be a non-resistant variety, said Keller. “So even resistant canola seed can help spread clubroot!” he said in an email. Still, experts and agronomists urge producers to seed resistant varieties — something Keller and Alberta Canola chair John Guelly say isn’t happening often enough.
Canola, Crops, News

In denial? Farmers ‘failing’ in battle against clubroot

Scott Keller has crunched acreage numbers and found tight rotations and susceptible varieties are commonplace

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For the last three years, Scott Keller has been crunching acreage numbers from the provincial crop insurer — and he’s not liking what he sees. “To me, everything the researchers and the Canola Council (of Canada) is saying that farmers should do; they’re not even doing anything outside of just adopting the resistant varieties,” said […] Read more
A variety of crop types can add to the health of your soil.
Crops

Make a difference with good crop rotation

Benefits include lower disease control and fertilizer costs

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One of the best tools to improve the bottom line, reduce future grief, and lower the risks of pests, disease and weeds is by using a diverse crop rotation. “A good crop rotation is one where there is an adequate variety of crops grown so that any one type of crop is grown only once […] Read more
This 2008 Canola Council of Canada video recommended producers “start at the top and work your way down to the root” when scouting for diseases. That meant clubroot — now the biggest threat to producers’ biggest money-maker — was discussed last (behind much less worrisome diseases such as alternaria and aster yellows). Agronomist Dan Orchard, shown here discussing sclerotinia, found the first confirmed case of clubroot but says back then, “we weren’t that scared of it.”
Crops

When it comes to the big two crop diseases, those really were the good old days

Fifteen years ago, a ‘funny’ new disease was found — today clubroot combined with fusarium is a killer one-two punch

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Fifteen years ago, Dan Orchard was working as an agronomist at a retailer when he got a phone call about something “funny” in a customer’s canola field. The plants were prematurely ripened and the roots looked strange. Orchard had a hunch of what he was looking at, but a visit with a plant pathologist confirmed […] Read more
Canola, Crops

Twelve tips to clubroot management

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There are several key management tools producers need to apply to minimize the risk of clubroot either reaching a damaging level, and/or to reduce a heavy spore load of the pathogen in the soil to a tolerable level (about 1,000 spores or less per gram or teaspoon of soil will not affect crop performance). The[...]
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Clubroot is scary enough but this Canola Council of Canada video on the life cycle of the disease ups the fear factor. Above, a still from the video (available at www.clubroot.ca) shows a zoospore, an amoeba-like creature released from a clubroot spore when it senses a host plant is nearby. The zoospore, powered by two whip-like flagella, can swim a short distance in water film in the soil towards a root hair. It then clamps on and penetrates the root hair and just like in the sci-fi horror classic “Alien,” begins to reproduce. 
Canola, Crops

A two-year break can prevent a clubroot horror show

Clubroot spores live for 20 years but new research says a 
surprising 99 per cent die in two years — if infestations are light

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*[UPDATED: Dec. 28, 2018] Still growing a canola-wheat rotation? One more year between canola crops could make a huge difference when it comes to clubroot. “Recent research has shown that 95 to 99 per cent of spores die over a two-year break,” said Dan Orchard, agronomy specialist with the Canola Council of Canada. “We were[...]
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Canola, Crops

Counties remain vigilant — but not heavy handed — in clubroot battle

Extensive scouting, canola-growing bans, and seeking farmer buy-in are keys to containment strategy

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As clubroot continues to spread across Alberta, many counties are in the management — not a prevention — phase. Cody McIntosh, agricultural manager for Red Deer County, said the county inspected 140 fields this year. “We confirmed another five fields (with clubroot), which is kind of the trend that everybody is seeing,” he said. “We[...]
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