Jan. 29, 2020
Health Canada has completed the re-evaluation of clodinafop-propargyl. Under the authority of the Pest Control Products Act, Health Canada has determined that continued registration of products containing clodinafop-propargyl is acceptable. An evaluation of available scientific information found that uses of clodinafop-propargyl products meet current standards for protection of human health and the environment when used according to revised label directions, which include new mitigation measures. No additional data are required.
The regulatory approach for the re-evaluation of clodinafop-propargyl was first presented in the Proposed Re-evaluation Decision PRVD2018-16, Clodinafop-propargyl and Its Associated End-use Products, which underwent a 90-day consultation period ending on 26 December 2018. PRVD2018-16 proposed continued registration provided that proposed risk mitigation measures, to protect human health and the environment, are implemented.
Clodinafop-propargyl is used in western Canada on spring and durum wheat. It provides effective control of wild oats, which is one of the major weed problems for wheat growers in western Canada.
With respect to human health, the health risks associated with the use of clodinafop-propargyl and associated end-use products are acceptable when these products are used according to the revised label directions.
Based on the available scientific information, risks to the environment were found to be acceptable when clodinafop-propargyl is used according to the revised label directions, which include advisory statements and spray buffer zones.