July 13, 2011

Blackleg in eastern Manitoba

Canola fields in eastern Manitoba are showing signs of blackleg infection. The photos below show typical damage. There is no effective fungicide for canola at this growth stage (protective sprays had to be applied early in the season) but growers are encouraged to scout and assess the level of damage before they harvest the crop. This will help in blackleg management decisions for future years.

Blackleg lesion on leaf in eastern Manitoba canola field. Source: Anastasia Kubinec, Manitoba Agriculture, Food and Rural Initiatives
Blackleg damage on canola leaves, Manitoba July 2011. Source: Anastasia Kubinec, Manitoba Agriculture, Food and Rural Initiatives
Blackleg damage on canola leaves, Manitoba July 2011. Source: Anastasia Kubinec, Manitoba Agriculture, Food and Rural Initiatives
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