Title of the Poster Comparison of Costs of Two Application Methods for Control of Duckweed Utilizing Pelargonic Acid as an Aquatic Herbicide Authors Author Affiliation and Contact Information Merritt J. Taylor, Department of Agricultural Economics, Oklahoma State University, 1901 South 9th Street, Durant, OK 74702-0749, (580)-513-5555, merritt.j.taylor@okstate.edu Charles L. Webber III, USDA, ARS Sugarcane Research Unit, 5883 USDA Road, Houma, LA 70360, (985) 364-9705, chuck.webber@ars.usda.gov Daniel M. Webber, University of Arkansas for Medical Science, 13 Children’s Way, Little Rock, AR 72202, (501) 364-4647, dmwebber@gmail.com Selected Poster prepared for presentation at the Southern Agricultural Economics Association’s 2015 Annual Meeting, Atlanta, Georgia, January 31 – February 3, 2015 The poster cited was prepared by a USDA employee as part of his/her official duties. Copyright protection under U.S. copyright law is not available for such works. Accordingly, there is no copyright to transfer. The fact that the private publication in which the article appears is itself copyrighted does not affect the material of the U.S. Government, which can be freely reproduced by the public.