Dicamba

Thank you to the University of Arkansas for the dicamba injury on soybeans photograph.

Please contact the Pesticide State Lead Agency to report Dicamba injury or issues.

2017 and 2018 materials from this Dicamba page have been moved here.


Dicamba-tolerant seeds were registered for use during the 2016 growing season.  Due to the lack of the accompanying dicamba formulation which was required to be used with the seeds, many growers used older formulations and the resulting drift and volatilization issues caused widespread crop damage and enforcement issues.

EPA registered the new dicamba formulation in the fall of 2016.  During the 2017 growing season we continued to see widespread crop damage and enforcement issues.  EPA and the registrants negotiated new labels for the 2018 season.  During 2018 there were still many issues with crop and non-crop damage and enforcement.  EPA approved a conditional 2-year registration with revised labels and requirements for the 2019 and 2020 seasons.


2019

University of Missouri’s IPM Program:  What Have We Learned from Four Years of Studying Temperature Inversions?

March 21, 2019:  SFIREG’s Dicamba Work Group has worked closely with the U.S. EPA to develop the Dicamba Guidance Document – revised 7/25/19 for use by states and trainers during the 2019 season.  This includes definitions, label language interpretations, and related Q&A.


Endangered Species:  On November 19, 2018, EPA posted Dicamba Pesticide Use Limitation Areas.  The county list may be found at: https://www.regulations.gov/document?D=EPA-HQ-OPP-2016-0187-0974


On October 31, 2018 EPA released changes to the Dicamba registration.