The Eastern Ontario Crop Diagnostic Day is a co-operative effort between the Ontario Ministry of Agriculture, Food and Rural Affairs, the Eastern Ontario Crop Advisory Committee and the Winchester Research Station, University of Guelph. The Eastern Ontario Crop Diagnostic Day is an annual event held in July, designed specifically to improve the problem solving skills of seed, fertilizer and chemical industry personnel, agricultural consultants and farm managers. Certified Crop Advisor credits are available for most sessions.