Back to Projects

Influence of pH on the clubroot pathogen: are there pH-insensitive strains?

Lead Researcher Stephen Strelkov
Co-Researcher(s) Sheau-Fang Hwang
Start Date April 2019
End Date March 2022
Funding Partners Manitoba Canola Growers, SaskCanola
Status Ongoing

The Challenge

While liming represents a potential tool for clubroot management, the effectiveness of increased pH in controlling different clubroot strains, and the potential risks of liming as a clubroot management strategy, are not known.

The Project

Determine if the effectiveness of soil pH amendment for clubroot control depends on the pathotype present and if liming can inadvertently select for pH-insensitive strains of the pathogen.

The Results

This section will be updated upon completion of the project.

Grower Benefits

An understanding of the effectiveness of liming to control different pathotypes will help in decision making since liming to increase soil pH can be costly and will not produce satisfactory results if the field pathotypes present are less sensitive to pH.


Keywords: Clubroot, Clubroot resistance, Plasmodiophora brassicae, P. brassicae, Liming, Management, Pathotypes

Back to Projects

Upcoming Events

Canadian Agricultural Safety Association Virtual Conference

Great speakers on farm safety including STARS Air Ambulance
Oct 20 - Oct 21
Online, Webinar

Roots to Success Risk Management Training Workshops

Farm Management Canada invites farmers to attend the Roots to Success Risk Management virtual training session to increase their ability to assess and address risks using a comprehensive approach to managing risk on the farm.
Nov 9
Online, Webinar

What to know before you buy or lease equipment with Lance Stockbrugger

The “buy or lease” question can be confusing. Join Lance Stockbrugger, a farmer and Chartered Professional Accountant, for a webinar where he’ll explain the pros and cons of leasing so you can make the best decision for your operation.
Nov 16
Online, Webinar

Join our mailing list to receive important news and event updates!

Subscribe to our newsletters