Clubroot has been a problem in Alberta for years.
Until now, Saskatchewan has been relatively free of the soil-borne disease that greatly reduces canola yields.
That appears to be changing, with isolated cases being reported in northwest and north-central Saskatchewan last year, and recently near Norquay, north of Yorkton.
1800 randomly selected fields will be surveyed over the next several weeks by Ministry of Agriculture staff.
Soil samples will be collected at the field entrance, and canola plants will also be pulled to examine the roots for clubroot galls.
If there is a positive test, the landowner will need to take measures to control the disease by using clubroot resistant varieties, and only growing canola once every three years.