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PPDC
https://ppdc.osu.edu

C. Wayne Ellett Plant and Pest Diagnostic Clinic

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College of Food Agriculture and Environmental Sciences

© 2025, The Ohio State University

College of Food, Agricultural, and Environmental Sciences
C. Wayne Ellett Plant and Pest Diagnostic Clinic
234 Selby Hall
1680 Madison Ave., Wooster, OH 44691
Phone: 330-263-3650
Email: ppdc@osu.edu

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Nondiscrimination notice | Site Map

Ohio State is in the process of revising websites and program materials to accurately reflect compliance with the law. While this work occurs, language referencing protected class status or other activities prohibited by Ohio Senate Bill 1 may still appear in some places. However, all programs and activities are being administered in compliance with federal and state law.

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The Ohio State University
College of Food, Agricultural, and Environmental Sciences
Ohio State University Extension
Ohio Agricultural Research and Development Center
Ohio State ATI