Many Minnesota farmers are starting postemergence weed control in freshly emerged cornfields. Currently registered isoxaflutole products, Balance Flexx (EPA Reg. No: 264-1067) and Corvus Herbicide (EPA Reg. No: 264-1066) produced by Bayer CropScience cannot be used in Minnesota because of expired Minnesota product bulletin for these products. The product bulletin for these products expired on February 6, 2020. The registrants may be renewing the product bulletins for these two products from the Environmental Protection Agency (EPA). So, pesticide dealers and applicators should check the label prior to selling or using these products. Use of these products without the Minnesota Product Bulletin or with an expired product bulletin is in violation of the product label and is not permitted under federal regulations.

In Minnesota, in order to use these products a Minnesota product bulletin must be in the possession of the user at the time of the pesticide application. Pesticide applicators must follow all product use directions and precautions listed on: 1) the container label and 2) the Minnesota Product Bulletin, which must accompany the sale and packaging of the product.

Once the product bulletins are renewed, the Minnesota Department of Agriculture will update it on its website

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