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New fungicide for powdery mildew up for registration

February 17, 2022  By Fruit & Vegetable

Gatten, a powdery mildew fungicide proposed for use in cherries, cucurbits and grapes, has been submitted to the Pest Management Regulatory Agency (PMRA) for registration. The online consultation period has ended, but the registration decision has yet to be finalized.

Delaware-based Nichino America and Ancaster, Ont.-based Cohort Wholesale have reached an agreement for Cohort Wholesale to distribute new Gatten fungicide in Canada. Cohort established demonstration trials in the 2020 growing season in cherry and grape-growing regions of the country to support the introduction of the new fungicide.

Flutianil, Gatten’s active ingredient, works by inhibiting the formation of the haustorium, which is the structure the fungus uses to extract water and nutrients from plant cells. It also inhibits secondary hyphal extension, stopping growth of existing infections. Additionally, Gatten has translaminar movement, which provides protection to both sides of the leaf and improves control, especially when foliage is dense.


In June 2020, the fungicide was registered for use on grapes in California. In March and April 2020, its label was expanded to be used for melon and cucumber/squash crops, and hops.

Nichino America is a wholly owned subsidiary of Nihon Nohyaku Co., Ltd., Japan’s first and oldest agrochemical manufacturing company.

Want to learn more? Click here to register for a free webinar on grape powdery mildew and the potential new fungicide option.

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