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Slow canola emergence due to cool soils can increase the risks from seedling diseases and from flea beetles…
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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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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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A verticillium wilt committee, with representatives from the Canola Council of Canada, the CFIA, AAFC, provincial canola grower organizations, provincial government specialists and life-science organizations, will examine the disease risk in Western Canada and come up recommendations for management. Step one is to survey more fields this summer and autumn…
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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…
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The Canola Council of Canada agronomy team came up with 12 agronomy priorities for 2015, and then ranked them. Here are the top 10, with our highest ranked topic placed first. We will cover these topics in more detail throughout 2015…
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Stephen Strelkov with the University of Alberta tested soil samples from 27 fields in Alberta that were seeded to resistant varieties in 2014 and showed more than expected levels of gall formation. Of those 27 fields, 15 have clubroot pathotypes that suggest the clubroot in those fields had overcome the resistance trait…
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A new canola variety was recently registered claiming an "intermediate" reaction to clubroot pathotype 5x, as well as resistance to established clubroot pathotypes 2, 3, 5, 6 and 8. Based on Western Canada Canola/Rapeseed Recommending Committee protocol for clubroot disease resistance, seed that is resistant (R) shows less than 30% infection based on a severity-by-incidence rating, and seed that is…
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The Canola Council of Canada is working with the Canadian Food Inspection Agency and Manitoba Agriculture Food and Rural Development (MAFRD) to understand the implications of verticillium wilt. MAFRD announced the detection of Verticillium longisporum (a species of verticillium wilt) at a single location in Manitoba in early January. (Photo source: MAFRD)…