Lambda-cyhalothrin label changes now in effect

May 03, 2023

With seeding operations starting to get underway across the prairies.

Farmers are being reminded that the PMRA label changes for lambda-cyhalothrin came into effect on April 29th.

Canola Council of Canada Agronomy Specialist Ian Epp notes in Canada crops treated with the product can no longer be used as livestock feed:

"In Western Canada, we don't really have a segregated market. There will be some contracts maybe, but food and feed do blend together. In a crop like canola specifically - canola can be simultaneously both food and feed. If we are crushing the oil maybe the oil is for food, but the meal that is a byproduct of that processing is often used for feed."

Epp says lambda-cyhalothrin is widely used for insect control in a variety of crops, like flea beetles in Canola.

Click here to see more...

Video: Sclerotinia and Lygus in Seed Canola: Field Update with George Lubberts, CCA | Enchant, Alberta

Join Certified Crop Advisor George Lubberts for this Prairie Certified Crop Advisor (Prairie CCA) field update from Enchant, Alberta. In this 12th video of the series, George takes us into a seed canola field where the male rows have been removed and the female plants are filling pods. This video was taken in the third week of August 2025.

George discusses the early signs of sclerotinia stem rot, explaining how infection begins in the stem, impacts pod development, and leads to premature ripening. He also shares insights on lygus bug management, including timing of spray applications to minimize feeding damage and maintain seed size and quality.

With cool, damp summer conditions, George notes that while disease pressure is present, overall field health remains good. The crop is just beginning to show early seed colour change, signaling progress toward maturity.

Topics Covered:

•Sclerotinia stem rot identification and impact

•Managing lygus bugs in seed canola

•Crop stage and seed colour change observations

•Timing insecticide sprays for optimal protection

•Insights from a CCA field perspective in southern Alberta