Daniel O. Stephenson is a professor and Extension specialist in weed science and a research coordinator at the Dean Lee Research Station, Louisiana State University AgCenter, in Alexandria. He previously held positions at the University of Arkansas, the University of Florida, and Auburn University. Stephenson earned a BS in agronomy and soils and an MS in agronomy and soils–weed science from Auburn University and a PhD in crop, soil, and environmental sciences–weed science from the University of Arkansas.