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Manitoba has a few confirmed cases of clubroot in 2015. One field with galls was found in the R.M. of Pembina, and fields with galls were found in the Swan River Valley…
Clubroot update: Manitoba cases, R varieties
November 4, 2015
Clubroot
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Consider tillage wisely
October 7, 2015
Western Canada has made great strides in adopting minimum tillage practices that save time and diesel fuel, improve soils and improve sustainability scores. Here are factors to consider before choosing the tillage option…
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Low levels of blackleg can drop yields
September 23, 2015
Many things can cause yields to be lower than expected. Crops that run out of nutrients may have significant biomass but smaller or fewer seeds in the pods. Moisture and……
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Wet soil increases clubroot spread
September 10, 2015
Moist conditions mean more soil clinging to machinery wheels. This increases the risk of moving clubroot as well as weed seeds and insect pupae around the farm. With the discovery of a potential new clubroot pathotype, growers will want to take time to sanitize equipment between fields…
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Begin your pre-harvest disease watch
August 6, 2015
Three major stem diseases — blackleg, clubroot and sclerotinia stem rot — are more easily identified in the weeks leading up to harvest. Areas of the field with prematurely ripening plants and excessive lodging are signs that any one of these three diseases could be present…
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Bought a used combine? Check it for soil
August 6, 2015
Buying used equipment from a clubroot area can create an unexpected transfer of the disease. We heard this week of a grower from northern Alberta who bought a used combine from a known clubroot area. The grower was surprised at how much soil was on and inside the combine, and this soil very likely contained clubroot spores…
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Clubroot resistance breakdown confirmed over a wide area in Alberta
May 13, 2015
Erosion of clubroot resistance is showing up in fields across central Alberta. Recent research by Alberta Agriculture and Rural Development (AARD) and the University of Alberta (U of A) has……
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You can test your soil for clubroot
April 22, 2015
Growers can have soils tested for low-level presence of clubroot at Manitoba's new Pest Surveillance Initiative (PSI) molecular detection laboratory. The lab processes and analyzes soil samples for presence of clubroot at very low levels, prior to noticeable plant symptoms,…
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Clubroot: When genetic resistance no longer works…
April 2, 2015
The best management option left is the four-year rotation. Discovery of different clubroot pathotypes in central Alberta will change the rotation plans for some growers. No current varieties have strong resistance to these pathotypes. If growers have used resistant canola two or three times already on fields that were infested with clubroot, these fields are at high risk for having…