I'm not sure in your area. Mine was at Michigan State full time (more than full) for 2 years with a required placement training work experience in between years. There are bound to be some people from your area on lawnsite that would know where to get started. Some possibilities include: a community college, count extension office, training and seminars put on by professional organizations or industry suppliers, a class to prepare for your state's pesticide applicator exam. If you end up having to piece together your own plan, classes on soils, turf and weeds, chemistry, plant biology are good places to start.