Dicamba Off-Target Movement: A Current Update of Field and Lab Observations

Thomas C. Mueller, University of Tennessee-Knoxville

Dicamba herbicide use has greatly increased due to the development and widespread adoption of dicamba-tolerant varieties in soybean and cotton in the US. In 2016 and 2017, significant off-target movement of dicamba occurred onto sensitive vegetation across the broad acre agricultural use areas of the US. Several changes have been made to the use label of these products, and this June 2018 webinar will be presented coincident when many of the reports started in 2017. Factors affecting dicamba emissions will be discussed, including aspects of the revised label language and various state restriction