Stephen Powles

Stephen Powles
Born1950 (age 75–76)
New South Wales, Australia
CitizenshipAustralian
Alma materUniversity of Western Sydney
Michigan State University
Australian National University
Known forResearch on herbicide resistance in weeds
Scientific career
FieldsPlant science; Crop & weed science
InstitutionsUniversity of Adelaide
University of Western Australia

Stephen B. Powles (born 1950) is an Australian plant scientist known for his research on herbicide resistance in weeds. He is emeritus Professor at the University of Western Australia and has been recognised for contributions to agricultural science through election to the Australian Academy of Science and the Australian Academy of Technological Sciences and Engineering.

Powles has published more than 300 peer-reviewed papers on crop and weed science, herbicides, plant productivity, and photosynthesis. His review papers in the Annual Review of Plant Biology (1984, 1994, 2010) have been widely cited. His Google Scholar h-index is 98.