TURF MD - An interactive reference tool for the identification and management of turfgrass diseases. Turf MD was designed for golf course superintendents, sports turf managers, turf scientists, extension professionals, and anyone else responsible for turfgrass health. It includes peer-reviewed images, diagnostic keys, decision support tools, and recommendations to help users identify and treat diseases, plus a directory of turf extension sources for more information. The app’s content is based on three APS PRESS Books: Turfgrass Diseases, Third Edition (Richard W. Smiley, Peter H. Dernoeden, and Bruce B. Clarke); A Practical Guide to Turfgrass Fungicides (Richard Latin ; and additional images and keys found in the Turfgrass Diseases, Diagnosis and Management CD-Rom (Gail L. Schumann and James D. MacDonald), published by APS PRESS.