Originally published in Corn+Soybean Digest

New formulations of dicamba for use as over-the-top sprays on tolerant crops will be in use at least through the 2020 season, thanks to a new ruling from EPA. In a Halloween decision, the agency extended registration for two years for use in cotton and soybeans. In its announcement, the agency said, “this decision was informed by extensive collaboration between EPA, the pesticide manufacturers, farmers, state regulators and other stakeholders.”

There are label updates designed to add protection for off-target impact of dicamba use, a wide-ranging problem since the agency approved use of the product on tolerant crops. EPA has been tweaking the label for the dicamba products approved under the registration including restrictions in 2018 that made the products restricted-use herbicides, added record-keeping requirements and added spray drift mitigation measures.

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