Health Canada has completed the re-evaluation of permethrin. Under the authority of the Pest Control Products Act, Health Canada has determined that continued registration of products containing permethrin is acceptable. An evaluation of available scientific information found that most uses of permethrin products meet current standards for protection of human health and the environment when used according to revised label directions which include new mitigation measures. Certain uses and application methods for permethrin are being cancelled to address potential risks of concern to human health. Label amendments, as summarized below and listed in Appendix III of RVD2019-11, are required for all technical and end-use products. No additional data are requested at this time.

Permethrin is a broad-spectrum synthetic pyrethroid insecticide. It is registered for use on a wide range of crops including grains and oilseeds, legumes, horticultural crops, mushroom houses, ginseng, greenhouse and field-grown ornamentals as well as tobacco. It is also registered for use on livestock, companion animals, forestry and woodlots, feedlots, termite treatment, pet premises, kennels, indoors and outdoors of homes, agricultural, commercial and institutional buildings, military clothing, mosquito netting and soil around honeybee hives. In Canada, there are over 400 registered pesticides containing permethrin. Information on these products can be found through Health Canada’s label transcription service.

Source: Health Canada