Plant Disease Diagnostic Laboratory (PDDL)

The Plant Disease Diagnostic Laboratory (PDDL) analyzes plant and soil samples, of regulatory concern, collected by ODA inspectors, from nurseries, orchards and other state agencies shipping in, out and within the state of Ohio. PDDL does testing for viral, bacterial, fungal, oomycete, and nematode pathogens, as well as the identification of  insect pests requiring containment conditions.

- Important Sample Submission Update - 

The C. Wayne Ellett Plant and Pest Diagnostic Clinic, Located in Wooster, Ohio, analyzes plant and soil samples from homeowners, landscapers  and the general public. For more information, please see the PPDC page.