This paper reviews the development of an air assisted sprayer. Field testing showed improved results in spray deposition and chemical dessication of plants. The authors are: Robert L. Wolff -Professor of Agricultural Mechanization at Southern Illinois University and Dennis G. Watson - Researcher in Agricultural Engineering at Michigan State University. This project was supported in part by Arcadian Corporation formerly part of Allied Chemical Corporation. Acknowledgement: The authors wish to acknowledge John G. Clapp, Jr. for support in developing improved spraying techniques. The use of trade names for equipment and/or products in this paper is not intended to endorse or discredit the manufacturer or product by the researchers, and/or SIU/C.