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New fungicide option for Canada’s ornamental growers

LUNA PRIVILEGE GREENHOUSE® now approved for Botrytis, Powdery Mildew control under newly expanded minor use label

July 22, 2025 
By Greenhouse Canada

Canada’s Pest Management Regulatory Agency (PMRA) recently announced the expanded minor use label registration for LUNA PRIVILEGE GREENHOUSE® Fungicide, providing commercial ornamental growers in Canada with an additional tool for disease management.

The fungicide, which contains the active ingredient fluopyram, is now approved for the control of Botrytis blight (Botrytis cinerea) and Powdery mildew (Erysiphe spp. and Podosphaera spp.) on greenhouse and outdoor ornamentals, according to the decision outline issued on June 11.

This expansion, according to a recent blog post on ONFloriculture.com, resulted from minor use proposals submitted by Agriculture & Agri-Food Canada, Pest Management Centre (AAFC-PMC), and the Ontario Ministry of Agriculture, Food, and Agribusiness, based on priorities identified by growers and extension personnel.

This expansion is seen as a significant development for the floriculture industry. Flowers Canada Growers Inc. and the Ontario Federation of Agriculture have been strong supporters for the registration as many existing disease protection tools have become less effective or have been withdrawn from the market in recent years.

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The product should be used within a robust integrated disease management program, with applications ideally beginning preventatively or at the first signs of disease, ONFloriculture.com advises.

Commercial growers must consult the complete product label for detailed application information, including specific rates and re-application intervals. A key aspect of its use involves rotating with non-Group 7 fungicides to manage the development of disease resistance. Growers should also be aware of environmental precautions: the product is toxic to birds, aquatic organisms, and non-target terrestrial plants. Fluopyram is persistent, and there is a potential for groundwater contamination in permeable soils.

The full minor use label can be obtained from local ornamental crops specialists, regional supply outlets, or the PMRA label site.

More information about the product and its recommended use can also be found on the ONFloriculture website.

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