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Saskatchewan has ‘hot spots’ for sclerotinia

Jan 12, 2023 | 1:30 PM

MELFORT, Sask. – The Saskatchewan Ministry of Agriculture has released its map outlining areas where sclerotinia was detected.

A total of 205 canola fields were surveyed in the major canola production regions of Saskatchewan last year.

The survey covered 29 fields in the northwest, 32 fields in the northeast, west-central region surveyed 28 fields, east-central has 52 fields checked, southwest had 27 fields and there were 37 fields in the southeast.

Due to the random and permission-based nature of field selection, not every rural municipality (RM) was surveyed in each region, while multiple fields were surveyed in some RMs.

Saskatchewan sclerotinia Incidence map shows areas of concern after canola field surveys (submitted photo/Ministry of Agriculture)

Disease assessments were made by collecting 20 plants from five different sites, each at least 30 meters from the edge of the field.

Sclerotinia stem rot was found in 56 per cent of the crops surveyed.

Average incidence across all crops surveyed in the province was six per cent and was higher than in 2021, but lower than 2020.

Higher disease incidence in 2022 can be attributed to the weather during the growing season.

alice.mcfarlane@pattisonmedia.com

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