Core tip: According to a report by the Chinese website of the World Agrochemical Network, over the past few decades, the area of treated grain and seed in Canada has significantly expanded. Although not all fields require treatment, and the intensity of treatment varies by region, crop type, variety resistance to diseases, and environmental risks, approximately 60%–65% of the grain and legume sowing areas in the country now use treated seeds. As the spectrum of diseases changes, seed treatment technology is also continuously evolving. Bayer stated that its team continuously monitors new threats to clarify the direction of research and development.