Dicamba EPA Registration Update

Dicamba Reregistration.

In June 2020 The U.S. Court of Appeals in the Ninth Circuit vacated the registrations of 3 dicamba products: Xtendimax with VaporGrip Technology, Engenia Herbicide, and DuPont FeXapan Herbicide. This created uncertainty for many farmers growing soybean and cotton and forced EPA to issue cancellation orders for these three products.


On October 27, 2020 the EPA issued new 5 year registrations for two products and extended the registration of a third:

  • XtendiMax with VaporGrip Technology for “over-the-top” OTT on dicamba-tolerant (DT) cotton and soybeans, expires 2025


  • Engenia Herbicice for OTT on DT cotton and soybeans, expires 2025


  • Tavium Plus VaporGrip Technology for OTT on DT cotton and soybeans, expires 2025


To address off-site movement concerns the registration added the following requirements:

  • Must use an approved pH-buffering agent prior to all applications to help control volatility
  • A downwind buffer of 240 feet or 310 feet in areas where listed species are located
  • No OTT applications after June 30 for soybean and July 30 for cotton
  • Label use and instructions were simplified for easier reading and implementation of safety measures


For the language related to this change please see the following resources:

Press release: https://www.epa.gov/newsreleases/epa-announces-2020-dicamba-registration-decision

Full Documentation: https://beta.regulations.gov/search?filter=EPA-HQ-OPP-2020-0492%20



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Posted: October 29, 2020

Category: Agriculture
Tags: Bultemeier, Dicamba, EPA, Pesticides

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