MSU Plant & Pest Diagnostics, Center for Integrated Plant Systems (CIPS), 578 Wilson Rd., Rm. 109E, East Lansing, MI 48824-6469
University of Georgia , Department of Plant Pathology Tifton Campus. 115 Coastal Way, Tifton, GA 31794
Oregon State University, Botany and Plant Pathology Attn: Plant Clinic 2701 SW Campus Way Corvallis, OR 97331
Rutgers Plant Diagnostic Laboratory Ralph Geiger Turfgrass Education Center 20 Indyk-Engel Way New Brunswick, NJ 08901