Saskatchewan's Ministry of Agriculture has released its sclerotinia risk map.
Higher disease incidence was found in 2022 compared to 2021 and can be attributed to the weather during the growing season.
The Ministry surveyed a total of 205 canola fields in the province's key canola-producing areas.
The survey covered 29 fields in the northwest, 32 in the northeast, 28 in the west-central region, 52 fields in the east-central region, 27 in the southwest and 37 fields in the southeast.
Disease assessments were made in each field by collecting 20 plants from five different sites, each at least 30 meters from the edge of the field.
Sclerotinia stem rot was observed in 56 per cent of the crops surveyed.
The average incidence reported across all crops surveyed in the province was six per cent with 11 per cent incidence in infected crops.
The overall mean incidence for the province was higher than in 2021 (two per cent) but lower than 2020 (17 per cent).