plant diagnostics

The OGIA/OSU Extension Hands-On Diagnostic Walkabout at the Snyder Park Gardens and Arboretum. The Walkabouts are for Green Industry professionals and provide comprehensive, hands-on training. Participants examine and discuss plants, plant pests, plant diseases, landscape designs, and other points of interest.

The OGIA/OSU Extension Hands-On Diagnostic Walkabout at the Cincinnati Zoo and Botanical Garden. The Walkabouts are for Green Industry professionals and provide comprehensive, hands-on training. Participants examine and discuss plants, plant pests, plant diseases, landscape designs, and other points of interest.

The OGIA/OSU Extension Hands-On Diagnostic Walkabout at Cox Arboretum. The Walkabouts are for Green Industry professionals and provide comprehensive, hands-on training. Participants examine and discuss plants, plant pests, plant diseases, landscape designs, and other points of interest.

We’re excited to invite you to the 101st Ohio Plant Diagnostic Workshop, taking place on September 5, 2025, at the Secrest Welcome and Education Center in Wooster, Ohio. This year’s workshop promises a lineup of expert speakers, hands-on diagnostics, delicious lunch, and a diagnostic walk through the beautiful Secrest Arboretum.

The C. Wayne Ellett Plant and Pest Diagnostic Clinic (PPDC) moved to The CFAES Wooster Campus about a year ago. We continue to provide diagnostic services and support for plant and pest-related problems for a wide range of stakeholders.

Registration is now open for the 2019 Tree Diagnostic Workshop on the OSU campus in Mansfield, Ohio on Friday, August 2, 2019. This full day workshop offers SAFCFE, ISA and ODA credits.