…to cause major yield loss. Clip stems around ground level to check for blackleg. Credit: Justine Cornelsen Blackleg disease rating: 3 Blackleg rating scale Clubroot. Above-ground symptoms, including wilting and…
Read moreTips to keep blackleg resistance strong The more we use blackleg-resistant canola in a rotation, the more we encourage the buildup of blackleg populations that can successfully overcome that resistance…
Read more…Clip stems around ground level to check for blackleg. Credit: Justine Cornelsen Blackleg disease rating: 3 Blackleg rating scale Clubroot. Above-ground symptoms, including wilting and pre-mature ripening, should be evident…
Read more…cross section is discoloured by blackleg infection. A rating of “0” means no blackleg stem discolouration. A rating of “5” means the stem is completely discoloured and blackleg has killed…
Read more…Prairie-wide results for as many years as available. canolaperformancetrials.ca. To provide some “weather-proofing,” choose hybrids that provide consistent high-yield performance in various conditions and pest scenarios. Know the blackleg risk…
Read more…a blackleg-resistant hybrid. The grey bars are results for blackleg-susceptible Westar grown on the same plots. A short rotation increases the risk of selecting for more races of the blackleg…
Read more…blackleg? Specks of black underneath the outer layer are likely verticillium. Specks of black on the outer layer are likely blackleg. Verticillium or sclerotinia stem rot? Verticillium can leave stems…
Read morePre-swath or immediately post-swath are good times to check blackleg severity. Checking more than a week after swathing makes it more difficult to identify blackleg because other decomposers will start…
Read moreBlackleg lesion starting at stem base. Source: Anastasia Kubinec A 5-year project to investigate changes in blackleg needs 20-25 growers per Prairie province to volunteer fields for the survey. This…
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