Optimizing Clubroot Management and the Role of Canola Cultivar Mixtures.

The sustainable cultivation of canola is under threat from clubroot disease (). The pathogen's resting spores can survive in the soil for extended periods, complicating disease management. Therefore, effective clubroot control requires a combination of tactics that provide multiple layers of protection.

Inoculum Density and Spatial Patterns at the Field Level and Relation to Soil Characteristics.

Clubroot, caused by , is an important soilborne disease of the Brassicaceae. Knowledge of the spatial dynamics of at the field level and the influence of soil properties on pathogen spatial patterns can improve understanding of clubroot epidemiology and management. To study the spatial patterns of inoculum density and their relationship to different soil properties, four clubroot-infested fields in central Alberta, Canada, were sampled in 2017 and 2019, and inoculum density, soil pH, and boron, calcium, and magnesium concentrations were quantified.

Clubroot Symptoms and Resting Spore Production in a Doubled Haploid Population of Oilseed Rape () Are Controlled by Four Main QTLs.

Clubroot, caused by Woronin, is one of the most important diseases of oilseed rape ( L.). The rapid erosion of monogenic resistance in clubroot-resistant (CR) varieties underscores the need to diversify resistance sources controlling disease severity and traits related to pathogen fitness, such as resting spore production.