By Stephen Robertson and Eric Jones et.al
The use of pesticide chemicals requires approval and pesticide registration by the state of South Dakota. This federal approval refers to the use of the active ingredient dicamba (3,6-dichloro-2-methoxybenzoic acid) in over-the-top applications and does not permit the use of this chemical, any unregistered, or any unlabeled products for over-the-top applications of dicamba in South Dakota. Monitor use approval in South Dakota from the South Dakota Department of Agriculture and Natural Resources and always follow approved label instructions and restrictions.
The Environmental Protection Agency has issued a limited-time registration (two growing seasons: 2026 and 2027) of over-the-top (OTT) use of dicamba on tolerant cotton and soybean. Although this will likely result in this important chemical weed-control tool being reregistered for use in South Dakota soybeans, there are several important caveats to keep in mind.
Not Currently Registered in South Dakota
While the over-the-top application of dicamba has been reviewed and approved by the EPA, there are no products currently registered for that use in South Dakota. A decision will likely be made soon, so be sure to monitor press releases from the Department of Agriculture and Natural Resources. Out of an abundance of caution, be careful about making decisions based on this federal approval, and as always, follow all label instructions.
Source : sdstate.edu