Plant and Pest Diagnostic Clinic


Due to the COVID-19 outbreak, Regulatory Division staff are currently working remotely under a modified operation status. All services will continue to be provided and staff will be available during work hours via email. Please be patient as you may experience longer response times as we work through this event.

Department of Plant Industry Laboratories
(Plant and Pest Diagnostic Clinic, Nematode Assay Lab, Commercial Turfgrass Clinic, MPPD Lab)

Our diagnosticians continue to process all samples.  Our laboratory building is closed to the public until further notice.  However, samples for 511 Westinghouse Road in Pendleton may be left at the rear loading dock.  There is a sample drop box with sample forms and other supplies.  Samples may also be shipped to our building via UPS, FedEx, and USPS.  Refer to our address at the top of each sample form.

For any questions about the laboratories of the Department of Plant Industry, please contact:
Diana Low, Laboratory Coordinator, (email is being monitored continuously),
(864) 646-2133 (voicemails are retrieved remotely on a regular basis) 

We thank you for your understanding of our compliance with these important public health measures.

The Clemson University Plant and Pest Diagnostic Clinic is a multi-disciplinary program which provides diagnoses and management recommendations for plant and turf problems, which include diseases, nematodes, weeds, environmental issues, nutritional deficiencies and insect pests of plants.  We also identify insects infesting structures, humans, pets and livestock.  

The Plant and Pest Diagnostic Clinic receives samples from the Clemson University Cooperative Extension Service offices, homeowners, growers, landscapers, turfgrass management professionals and researchers. Our diagnosticians work closely with Clemson University specialists to provide management recommendations.  As a part of Clemson University Regulatory Services, we also help to detect and document new plant diseases and pests in South Carolina.

Samples may be submitted through the County Extension offices or directly to the laboratory. Each location has the supplies needed for submitting samples.  Sample submission forms may be found in the right-hand column of this page.  Our laboratories include the Plant and Pest Diagnostic Clinic, Nematode Assay Lab, Commercial Turfgrass Clinic and MPPD Lab.  Our laboratory address is:


Clemson University
511 Westinghouse Road
Pendleton, SC 29670

(864) 646-2133


Laboratory hours are Monday - Friday, 8:00 a.m. - 4:30 p.m.
(closed during lunch hour, noon - 1:00 p.m.)


Plant Diagnostic form

Plant/Weed Identification form

Insect Identification form

Nematode Assay form

Turf Diagnostic form        (homeowners & landscapers)

Commercial Turfgrass Form   (golf courses & athletic fields)

Index of Plant Diseases in SC

PDIS: Plant Diagnostic Information System             (University personnel only)