Dr. Ong is currently the director of the Texas Plant Disease Diagnostic Laboratory (Plant Clinic). This laboratory provides plant disease diagnostic service to AgriLife Extension personnel, homeowners, farmers, greenhouse and nursery producers, landscape contractors, interiorscapers, arborists, consultants, and any other group or individual needing accurate identification of plant disease problems. The Plant Clinic collaborates efforts with state and federal agencies through the National Plant Diagnostic Network - Southern Region.