Carroll is responsible for addressing the pest management issues facing the tree fruit, berry and grape industries of NY through the application of IPM. She works closely with Cornell Cooperative Extension personnel, faculty, legislators, the fruit industry, consultants, and growers. Carroll directed the Plant Disease Clinic at Cornell for seven years and has considerable expertise in plant pathology. Active in Cornell 4H plant pathology development and the American Phytopathological Society’s K-12 youth programs, Carroll has championed plant pathology outreach to youth and secondary teacher audiences. She has conducted research on Dutch elm disease, maple decline, wheat spindle streak mosaic virus, carrot leaf blights, grape powdery mildew, bacterial canker of cherry, and tarnished plant bug. She is author of over 200 extension and research publications and authored a monograph for high school biology teachers. As Fruit IPM Coordinator she carries 20% research and 80% extension responsibilities. Carroll is investigating the impact of copper bactericides and pruning practices on the management of bacterial canker of sweet cherry. Carroll produces Trac Software, a pesticide record-keeping and reporting program for fruit farmers which enables growers to meet market traceability requirements and federal and state pesticide safety requirements. Carroll is leader for the Network for Environment and Weather Awareness (NEWA), a weather mesonet, that provides weather information and IPM forecasts via the Internet.