Jim Chaput, Minor Use Coordinator
The Pest Management Regulatory Agency (PMRA) recently announced the approval of a minor use label expansion registration for Reason® 500SC Fungicide for control of downy mildew on basil and an amendment to update the label to include management of downy mildew on the new Brassica vegetable crop groups 5-13 and 4-13B in Canada. The head and stem Brassica vegetable group includes cabbage, napa cabbage, Brussels sprouts, cauliflower and broccoli and the new Brassica leafy greens crop group includes arugula, Chinese broccoli, Chinese cabbage, bok choy, collards, cress, kale, mizuna, mustard greens, etc. Reason® Fungicide was already labeled for use on a number of crops in Canada for control of several diseases.
These minor use projects were submitted by Ontario 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 pest management program and should consult the complete label before using Reason® 500SC Fungicide.
|Crop(s)||Target||Rate (mL/ha)||Application Information||PHI (days)|
|Brassica leafy vegetables, crop subgroup 4-13B
Brassica head and stem vegetables, CG 5-13 & kohlrabi
|Downy mildew||400 – 600||Begin applications as soon as crop or environmental conditions favour disease development. Apply at a 5 -10 day interval. Do not exceed 3 applications per growing season.||2|
|Basil||Downy mildew||400||Begin applications as soon as crop or environmental conditions favour disease development. Apply at a 7 day interval. Do not exceed 4 applications per growing season.||2|
Reason® Fungicide is toxic to aquatic organisms and may be harmful to beneficial predatory or parasitic arthropods. Do not apply this product or allow drift to other crops or non-target areas. Do not contaminate off-target areas or aquatic habitats when spraying or when cleaning and rinsing spray equipment or containers.
Follow all other precautions, restrictions and directions for use on the Reason® Fungicide label carefully.
For a copy of the new minor use label contact your local crop specialist, regional supply outlet or visit the PMRA label site https://www.canada.ca/en/health-canada/services/consumer-product-safety/pesticides-pest-management/registrants-applicants/tools/pesticide-label-search.html