spores Archives | Alberta Farmer Express

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.

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

By Jennifer Blair December 27, 2018

Reading Time: 4 minutes *[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 […] Read more

Stripe rust can cause significant yield losses for wheat growers. (Yue Jin photo courtesy ARS/USDA)

Crops, Weather, Winter Wheat

Pearce: Stripe rust in winter wheat is Ontario’s biggest threat

By Ralph Pearce May 30, 2016

Normally, stripe rust in winter wheat isn’t a huge problem for growers in Eastern Canada, and particularly in Ontario — at least, not at this stage of the growing season — but the 2016 growing season isn’t shaping up to be “normal” either. For now, the immediate challenge before growers is to get out and […] Read more

Canola, Crops

Time to test all Man. fields for clubroot, province says

By Alberta Farmer Staff June 5, 2015

Distribution of clubroot spores across Manitoba now suggests it’s time for more widespread testing to keep the disease in check, the provincial ag department recommends. Since the disease appeared in Manitoba in 2009, fewer than five per cent of the province’s farms have so far been tested for the spores that cause the yield-robbing disease […] Read more

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Tag Archives spores

A two-year break can prevent a clubroot horror show

Pearce: Stripe rust in winter wheat is Ontario’s biggest threat

Time to test all Man. fields for clubroot, province says

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