Home Crop Monitoring Canola School: Root rot conditions of concern

Canola School: Root rot conditions of concern


It’s nonetheless early days, however as we look ahead to soil temperatures to heat up in components of the Prairies and for canola seeding to roll in full power, it’s good to assessment the potential for canola ailments. Root rot pathogens pose a specific amount of danger to a canola crop early within the season.

Justine Cornelsen, agronomy specialist in built-in pest administration and sustainable manufacturing at Canola Council of Canada, joins western area editor Kara Oosterhuis for this newest Canola Faculty episode.

Cornelsen says that as a result of of the cool, dry conditions, there are just a few pathogens to make be aware of, earlier than the canola seed goes within the floor and as canola emerges.

“Dry soils raise a whole host of issues as canola does need some moisture to start germination,” says Cornelsen. “Once it does emerge, in these drier soils you have to be cautious of different fusarium species.”

Fusarium species that trigger root rot favor drier, hotter soil temperatures whereas rhizoctonia can thrive in dry, however cool temperatures. Pythium species do properly in saturated, cool soils and are often the primary species that infect root tissues, adopted by fusarium an infection, then rhizoctonia.

“In season, when you’re looking at symptoms, it’s very very difficult to visually tell the difference between them,” says Cornelsen and recommends sending a pattern away to establish the pathogens current.

The bottom degree safety for canola is to make use of a fungicide seed remedy. Crop rotation will assist to lower the pathogen ranges in soils, even pathogens which might be naturally occurring in soils. Getting canola within the floor at 6 levels C, or higher but at 8 to 10 levels C, will give the crop a leg up.

Watch the total interview with Cornelsen and Oosterhuis beneath:


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