Objectives 1) To develop fuzzy rules for dose response when varying rates for specific chemicals, weed and weather conditions. 2) To design control system hardware and software for monitoring weather conditions, determining sprayer location, reading, weed map, determining chemical/dose and regulating, the DIS. 3) To build and bench test prototype control system. 4) To field test the control system for reliability and performance. Funding Program: OMAFRA / UofG Partnership - Research Theme: Production Systems - Plant Commodity/Sector: Administration of Environmental Quality Programs