Canada approves Pyriofenone 300 SC Fungicide, containing pyriofenone

Health Canada's Pest Management Regulatory Agency (PMRA), under the authority of the Pest Control Products Act, is granting registration for the sale and use of Pyriofenone 300 SC Fungicide, containing the technical grade active ingredient pyriofenone, to control suppress/control powdery mildew on greenhouse ornamentals, greenhouse pepper, greenhouse eggplant, greenhouse cucumber and greenhouse tomato.

What is pyriofenone?

Pyriofenone disrupts cellular activity, leading to reduced growth and reproduction of the fungus. This active ingredient is effective against powdery mildew on agricultural and ornamental crops.

What is the value of Pyriofenone 300 SC Fungicide?

Pyriofenone is a fungicide for use against powdery mildew on ornamental crops and certain vegetable crops grown in the greenhouse.

Powdery mildew affects the aesthetic quality and marketability of ornamental plants and can negatively affect the yield and quality of vegetable crops. Canadian growers identified management of powdery mildew on greenhouse ornamental crops as a national priority at the Canadian Minor Use Priority Setting Workshop in 2014. Pyriofenone will contribute to protection against powdery mildew and the management of pathogen resistance.

The Proposed Registration Decision PRD2023-08, Pyriofenone 300 SC Fungicide, containing pyriofenone, containing the detailed evaluation of the information submitted in support of this registration, underwent a 45-day consultation period ending on 24 November 2023. The evaluation found that under the approved conditions of use, the health and environmental risks and the value of the pest control product(s) are acceptable. Health Canada received written comments relating to the health assessments during the public consultation period conducted in accordance with section 28 of the Pest Control Products Act.