Prereq.:BIOL 1001, BIOL 1002, CHEM 1001, CHEM 1002 or equivalent.2 hrs. lecture; 2 hrs. lab. Weed biology and economic importance of weeds in the diverse agriculture of Louisiana; weed management programs, characteristics of important herbicides, mechanisms of herbicidal action, fate of herbicides in the environment and pesticide application, labeling and safety.