North Carolina Plant Disease and Insect Clinic


Disease Problems:


Insect Related:


General Questions:


Monday - Friday

NC Plant Disease & Insect Clinic 1227 Gardner Hall
100 Derieux Place
Raleigh, NC 27607
Directions to the Clinic

Department of
Plant Pathology

Department of



Plant Disease and Insect Clinic




See Turfgrass Diagnostics Page external link




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The Plant Disease and Insect Clinic at North Carolina State University provides a wide array of diagnostic services including:

Mushrooms - submit digital images or contact us for further help and instructions. In case of accidental ingestion, contact The Carolinas Poison Center at 1-800-222-1222

As part of the diagnostic process, we check for plant diseases, insect problems, injuries and various disorders, and measure soil pH and soluble salts. If we suspect nutrient imbalances or nematode damage, we refer the sample to the North Carolina Department of Agriculture and Consumer Services external link at no additional charge.

Once we have made a diagnosis, you will receive a sample report that will cover a summary of our observations, the results of the diagnosis, and recommendations for managing the problem or problems diagnosed. In some cases you can expect a diagnosis within 2-3 days after we receive the sample, but most samples will take up to a week. A few samples can take much longer. See What to Expect for more information.

Facilities and Resources

Our lab is a state of the art diagnostic facility and our fees include nearly all diagnostic tests at no additional charge. Among the tests and procedures we use for diagnosis are:

Our in-house library contains more than 400 reference works, including disease diagnostic guides, fungal identification keys, crop and ornamental production manuals and guides, pesticide references, and plant identification manuals. Our searchable database has complete records for all samples (more than 10,000) submitted to the clinic since 2008.

Occasionally, we need to refer a sample to a specialized lab for definitive diagnosis. Our diagnosticians will consult with you before referring samples for further analysis if this will result in additional charges.


All sample reports include information and recommendations for controlling the problem or problems we identify. Our staff works closely with expert faculty at NCSU and other institutions to provide recommendations suitable for your situation, whether you are a homeowner or large commercial producer.

Special Services

We can provide diagnostic and identification services for large numbers of samples or special projects on a limited basis. Please contact Barbara Shew, Director of the Plant Disease and Insect Clinic, to discuss your needs.


Last update: 23 Dec 2014 by B.B. Shew