Don’t let clubroot take root.
Sustainability of the Canadian canola industry is as important to us as it is to you. Together, we can work together to minimize the impact of clubroot with an integrated pest management (IPM) strategy that includes:
- Extend canola rotation to a minimum of once every three years when possible
- Using sanitation and patch management to limit the movement of infected soil
- Control volunteer canola and other brassica weeds that can act as hosts for the disease
- Scouting to identify the presence of the disease
- Utilize clubroot-resistant genetics as part of an IPM strategy
Clubroot-resistant genetics from InVigor.
All InVigor clubroot-resistant hybrids have been developed to be resistant to the most predominant clubroot pathotypes found in Canada at the time of their registration.
InVigor L340PC and InVigor L255PC contain the same clubroot resistance profile. InVigor L343PC contains this resistance profile plus it contains second-generation clubroot resistance to additional emerging clubroot pathotypes, to help combat the ever-evolving clubroot pathogen. Second-generation clubroot resistance is designed to combat clubroot in fields that still (or start to) show signs of the disease, despite seeding a first-generation clubroot-resistant hybrid as part of an integrated management plan.
Clubroot populations in the field can evolve or shift to new pathotypes that current resistant hybrids may be susceptible to. These new pathotypes may become dominant in the clubroot population if no additional integrated pest management approaches are taken and canola hybrids with similar resistance profiles are used repeatedly in the same field. To maximize the durability of genetic resistance in canola hybrids, use an integrated pest management strategy that includes extending rotations in areas where clubroot is a concern. We support the Canola Council of Canada’s agronomic recommendations when growing these InVigor hybrids.
To extend the effectiveness of clubroot resistance genes and when growing clubroot-resistant hybrids in fields known to contain clubroot, we recommend growing first-generation clubroot-resistant hybrids for two cycles or until clubroot symptoms appear, whichever comes first. Only after one of these conditions is met should you consider switching to second-generation resistant hybrids.
Clubroot-resistant genetics decision tree.
InVigor has a number of clubroot-resistant options to choose from in this year’s lineup. However, not all genetic profiles should be deployed in the same way. Learn how to effectively select between first- and second- generation genetics by using our handy clubroot-resistant genetics decision tree.
