The intended audience for this publication includes greenhouse tomato growers, Extension agents, crop consultants, horticulture educators, greenhouse managers, and other agricultural professionals working with protected tomato production systems. The publication is especially useful for growers managing long-season or high-wire tomato crops who need practical guidance on identifying, preventing, and managing common greenhouse tomato diseases, including leaf mold, gray mold/Botrytis, and bacterial wilt. It is written to support both commercial growers and technical service providers who need clear, applied recommendations for scouting, sanitation, environmental management, and integrated disease management in greenhouse tomato production.