Harvest is a great time to assess the incidence and severity of canola diseases, an important step in management for next year…
Diseases
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We know that tillage will spread clubroot as well as weed seeds and verticillium, but ruts can create headaches for combining, fall spraying and seeding next spring. Working wet fields can also cause compaction…
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More than 10 clubroot pathotypes have been identified in Alberta, and clubroot-resistant (CR) varieties will not protect against all of them. CR varieties with the same source of resistance grown in a short rotation will quickly select for those pathotypes that are virulent to those varieties. With good moisture for clubroot this year, many fields of CR canola are showing…
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Test your disease ID knowledge. Match the disease to these four images…
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Aster yellows is a phytoplasma infection that causes misshapen pods and flower buds. Most fields in most years have less than 1% infection, which is not an economic level of loss…