Questions of the Month

blackleg and provide analysis of blackleg races present. These results will help growers choose the best canola R-genes to use the next time canola goes on that field. While farms…

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Blackleg scouting in the fall

Blackleg pseudothecia on old canola stem pieces. Blackleg pseudothecia on stubble pieces. Photo credit: Justine Cornelsen Further reading: Blackleg ratings and seed decisions Blackleg resistance: Rotating difference resistance types Blackleg.ca…

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Blackleg, foot rot or cutworms?

…Early blackleg infection. Blackleg Symptoms: Use this 3-step process to positively ID blackleg: (1) Does it have cankers that cause the base of stem to turn woody? If yes, then…

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Questions of the Month

…appropriate for fields with increasing blackleg levels. Consider how seed treatments for flea beetles, cutworm and blackleg could help. These factors all go into choosing the right canola cultivar for…

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Blackleg management tips

…harbour the blackleg pathogen.” Blackleg photo gallery   Blackleg lesions on young plants are more likely to cause significant yield loss than infection later in the season. Blackleg lesion on…

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Questions of the Week

…are similar to but much smaller than blackleg pycnidia. More spread-out discolouration: Like blackleg, verticillium stripe causes a darkening of the stem cross-section. However, while blackleg causes distinct black wedge…

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Questions of the Month

…for example, should be sprayed before October 1. Is it time to switch blackleg R genes? Farm reports suggest higher levels of blackleg this year, with notable yield loss in…

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How to ID blackleg

…by hand. Blackleg disease rating: Blackleg disease rating: 1 Blackleg disease rating: 2 Blackleg disease rating: 3 Blackleg disease rating: 4 Blackleg disease rating: 5 (dead)   Blackleg management options…

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