*Updated January 10, 2019. Email whetterj@canolacouncil.org if you have varieties to add.
Here are the clubroot-resistant (CR) canola varieties currently available in Western Canada. Varieties with a ** denotation contain a new clubroot resistance trait.
Brett Young
6076 CR**
6090 RR
4187 RR (previously SY 4187)
Canterra
CS2000
CS2600 CR-T
DeKalb (Bayer)
75-42 CR
DKTF 94 CR
InVigor (BASF)
L135C
L241C
L234PC**
L255PC
L258HPC
Pioneer/Brevant (Corteva)
45H29
45H33
45CS40
45CM36**
45H37
45CM39**
D3155C
1024 RR
1026 RR
1028 RR
2028 CL
Proven (Nutrien)
PV 581 GC
PV 591 GCS
PV 585 GC**
Victory (Cargill)
V 12-3
V 14-1
Growers using clubroot-resistant varieties in clubroot-infested fields may experience some infected plants, which can be attributed to susceptible volunteers and off-types. Volunteer canola seed can germinate many years after it was last grown, and if this comes from a susceptible canola crop, then the volunteers will be susceptible. Off-types are a normal part of hybrid canola production – no canola hybrid is 100% pure, so there may be a small proportion (1 to 4%) of the seed that is susceptible.
When scouting, if more than 10% of seeded plants (do not count volunteers) are infected, that may indicate that the clubroot resistance is no longer functional against the pathogen population in the field. These infected plants may be restricted to a small patch which indicates a recent pathogen change.
Further reading:
Grow CR varieties as soon as clubroot is in the area
“Manage clubroot” section of Canola Encyclopedia