The Weed Science Society of America (WSSA) is a nonprofit, learned society focused on weed science.
[1] The organization promotes research, education, and extension outreach, provides science-based information to the public and policy makers, and fosters awareness of weeds and their impact on both managed and natural ecosystems.
[2] President for 2018-19 is Scott Senseman from the University of Tennessee.
[4] The WSSA classifies all herbicides by the mode of action.
[5] In 2017, WSSA began a partnership with Cambridge University Press to continue publication of the three WSSA journals: Weed Science (formerly Weeds) ISSN 0043-1745, Weed Technology ISSN 0890-037X, and Invasive Plant Science and Management ISSN 1939-747X.