Strychnine distribution begins in Saskatchewan

June 22, 2026

Media Release, Agriculture, Gov't SK

Key points from this story:

• Two per cent liquid strychnine distributed
• For integrated Richardson's ground squirrel management
• Producers must complete mandatory online training
• Purchase available at participating RM offices
• Application recommended July 15 to September 1
• Species-at-risk assessments required for sites

"Following the Emergency Use Registration (EUR) approved this spring, we are encouraged to see the first deliveries of two per cent liquid strychnine arrive in Saskatchewan," Agriculture Minister David Marit said. "I am confident in Saskatchewan producers' ability to use strychnine safely and responsibly. By following label directions and demonstrating responsible stewardship, they can effectively manage Richardson's ground squirrels while protecting our agricultural landscapes."

Producers in eligible regions of Saskatchewan who have completed the mandatory online training and met all stewardship program requirements can purchase the product at participating rural municipality (RM) offices. Supplies are limited, so producers should contact their RM regarding access, as delivery timing and available inventory may vary by location. Additional supplies are expected throughout the growing season.

At this time of year, strychnine application is not recommended as abundant green vegetation makes the bait less effective. The next recommended application window is from July 15 to September 1 once vegetation starts to dry down.

In regions where strychnine is unavailable or not registered, producers are encouraged to use alternative registered rodenticides, as well as biological and cultural controls for Richardson's ground squirrel control.

Under the EUR approved this spring by Health Canada's Pesticides Regulatory Directorate (formerly the Pest Management Regulatory Agency), approximately 195 RMs have become distributors and two RMs have made agreements to have RMs distribute strychnine on their behalf. A current list of RMs participating in the Strychnine Stewardship Program is available at: saskatchewan.ca/rgs-control.

The Strychnine Stewardship Program includes significant measures to protect species-at-risk, including black-tailed prairie dog, burrowing owl, swift fox, Ord's kangaroo rat, ferruginous hawk and greater sage grouse. Measures include a species-at-risk assessment of every proposed strychnine treatment site to determine whether additional risk mitigation measures are required to protect species-at-risk. If species-at-risk cannot be managed through additional measures, including delayed application and enhanced monitoring, application will be prohibited.

All strychnine users must also conduct an in-field species-at-risk assessment and document the implementation of risk mitigation measures. Site monitoring is required for a minimum of four weeks following application with once-a-day monitoring in the first week.

For full details on the Strychnine Stewardship program, including training, forms, signage and alternative controls, see: saskatchewan.ca/RGS-control.