AGRICULTURAL & ENVIRONMENTAL SAFETY PROFESSIONAL STAFF Don Renchie - Pesticide Safety Education Program (PSEP) Coordinator, Urban Pesticide Application, IPM in Public Schools. Mary Ketchersid- WPS, RTK, ESA'73, Weed Ecology, Weed Systematics and Identification, Herbicides & Herbicide Biochemistry. Mark Matocha- Extension Program Specialist - Pesticides, IR-4, Weed IPM, Ornamental and Turf IPM, Application Equipment Safety & Calibration, O&T Training.