Label Update for Lambda-Cyhalothrin Removes Feed Use

The Pest Management Regulatory Agency’s (PMRA) re-evaluation decision regarding lambda-cyhalothrin (e.g., Matador, Silencer, LaBamba, etc.) came into force on April 29, 2023.    

The updated label for lambda-cyhalothrin indicates that crops treated with lambda-cyhalothrin cannot be used as livestock feed in Canada. This includes any harvested grain, seed screenings, by-products or aftermath. As any crop entering the grain handling system is eligible for use as livestock feed, this poses a risk of becoming an off-label use.

The PMRA has received applications to reinstate the cancelled feed uses for harvested grains. As of April 1, 2024, the reinstatement applications remain under review by the PMRA and a decision will not be available before the 2024 growing season. As a result, this issue remains the same as the 2023 growing season.

On May 9, 2024, the PMRA released an information note to provide an overview to pesticide users and stakeholders of the changes to the agricultural uses of Lambda-Cyhalothrin.

Keep it Clean provides the following tips to help keep your crops market-ready, including:  

More information on alternative insecticide options for canola, cereals and pulses in Western Canada can be found in this collaborative publication from SaskCanola, SaskBarley, SaskPulse and SaskWheat developed for the 2023 growing season.  

For Eastern Canada, see statements from Grain Farmers of Ontario and Ontario Bean Growers from the 2023 growing season.

Canola growers can also reach out to their local Canola Council of Canada agronomist or refer to the Canola Encyclopedia for complete insect management information. 

Manitoba growers can review this information for alternatives to lambda-cyhalothrin developed for the 2023 growing season.

For further information, please refer to the provincial crop protection guides for Alberta, Saskatchewan, Manitoba or Ontario. 

For any further questions, please contact: