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Client: UFA File Name: Buildings_Earlug_ABFX_v2 Project Name: Canola Earlugs Docket Number: 110201412 Trim size: 3.08” x 1.83”
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DECEMBER 23, 2013
Potential catastrophe looms as clubroot infestation rates soar Provincial oilseed specialist Murray Hartman says the number of infested fields jumped by a third this year and will spread exponentially BY JENNIFER BLAIR AF STAFF
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he number of Alberta fields with clubroot jumped by more than one-third this year and provincial oilseed specialist Murray Hartman says exponential increases are likely unless canola growers lengthen their rotations. “If the conditions are suitable, we expect to be seeing more cases every year,” said Hartman. “This year, we had the largest number of cases, and we should expect even more cases next year.” Canola growers could be in for a catastrophe if they don’t change their ways, said the Alberta Agriculture and Rural Development official. “Some of them are underestimating the impact of (clubroot) once it gets established,” he said. “If you ignore it, it will quickly build up in a field so that you have very severe yield losses. In some cases, these patches will yield nothing.” First detected in canola in 2003, clubroot was found in 1,500 fields this year, a sharp rise from the 1,100 fields last year, and it’s spreading by 20 kilometres annually. It’s akin to what happens in flu outbreaks, said Hartman. “When the first couple of people get it, there’s a small increase in numbers. But after 100,000 people get infected, all of a sudden they’re infecting a lot of other people.” Many canola growers still don’t understand the threat posed to their biggest money-maker, said Scott Keller, who farms at New Norway, south of Camrose. “The more we look for it, the more we find it,” said Keller, who found clubroot on two different farmers’ fields in the Camrose area in the fall of 2011 while working for an agriculture retailer. “Before that, it was always somebody else’s problem. We were definitely in denial.”
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First detected in 2003, clubroot was found in 1,500 fields this year, up from 1,100 in 2012.
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