The Plant Clinic will be closed 12/25/23 (Mon) - 1/1/24 (Mon) for the winter holiday, and our regular operation will resume 1/2/24 (Tues). Samples must arrive by 12/20 (Wed) to process them before the closure.
We appreciate your understanding and we wish you a happy holiday.
About the Clinic
We are a diagnostic facility that offers fee-based plant disease problem solving and specialized identification services. Home gardeners are encouraged to first consult with their local OSU County Extension office for free consultations on disease problems.
We also house the OSU Insect ID Clinic, a free insect identification service.
Oregon State University, Botany and Plant Pathology
Attn: Plant Clinic
2701 SW Campus Way
Corvallis, OR 97331
The Plant Clinic is open Monday through Friday 8:00 - 4:00 p.m.
Melodie Putnam has retired.
After 30 years of serving clients' needs in the Plant Clinic, our director retired June 30, 2023.
Melodie's successor will begin September 30th. In the meantime, the Clinic will continue to be operational and is staffed with excellent personnel who have solid experience in plant problem diagnosis. However, because it is a small lab, the absence of one person may result in slower response times.
The Plant Clinic staff remain dedicated to solving your plant problems, and look forward to working with you!
Emerald Ash Borer
This brilliant green beetle will kill native and cultivated ash trees. Please be on the alert for dying ash trees, and if found, look for evidence of the beetle
(borer holes, adults, galleries under the bark).
For more information, please visit https://www.oregon.gov/odf/Documents/forestbenefits/fact-sheet-emerald-ash-borer.pdfPhoto: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org