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November 20, 2023

The Pest Management Regulatory Agency (PMRA) recently approved two minor use label expansion registrations for Flint fungicide for suppression of powdery mildew on edible honeysuckle (haskaps), and suppression of botrytis leaf blight and purple blotch on bulb vegetables (CG 3-07 A & B) in Canada. Flint fungicide was already labeled for disease control on a wide range of crops in Canada. These minor use proposals were submitted by Agriculture & Agri-Food Canada, Pest Management Centre (AAFC-PMC) as a result of minor use priorities established by growers and extension personnel.


The following is provided as an abbreviated, general outline only. Users should be making disease management decisions within a robust integrated disease management program and should consult the complete label before using Flint fungicide.




Rate (g of product / ha)

Application Information

PHI (days)

Edible Honeysuckle (Haskap)

Suppression of Powdery Mildew

140 - 210

Begin applications preventatively and continue on 7-14 day interval. Use the higher rate and shorter application interval when conditions favour development of severe disease pressure. Use sufficient water to obtain thorough coverage (min 300L/ha). DO NOT exceed 3 total applications of FLINT Fungicide per season.


Bulb Vegetables (CG 3-07 A & B)

Suppression of Botrytis Leaf Blight and Purple Blotch

210 -280

Begin applications preventatively and continue on a 7-14 day interval.  Use the shorter spray interval when disease pressure is severe.  Use sufficient water to obtain thorough coverage. DO NOT exceed 4 total applications of FLINT Fungicide per crop season.




For a copy of the new minor use label contact your local fruit or vegetable crop specialist, your regional supply outlet, or visit the PMRA label site


Source:  Josh Mosiondz, minor use coordinator, OMAFRA November 14, 2023



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Submitted by Karen Davidson on 20 November 2023