Find your plant solutions here.

The University of Illinois Plant Clinic has served as a clearinghouse for plant problems since 1976.

This multidisciplinary venture is managed through the Illinois Crop Sciences Department but relies on input from many departments, including both research and extension components. Most of the diagnostic work is done at the Plant Clinic, but specialists are consulted as needed in the areas of botany, entomology, horticulture, mycology, plant pathology, soils, soil fertility, and weed science.

Our work is supported by experts in the industry

Services offered by the Plant Clinic

  • Plant and insect identification
  • Diagnosis of disease, insect, weed, and chemical injury (chemical injury on field crops only)
  • Nematode assays
  • Help with nutrient related problems, as well as recommendations involving these diagnoses.

Techniques used by the Plant Clinic

  • Microscopic examinations 
  • Laboratory culturing
  • Virus assays
  • Nematode assays
    Nematode problems are difficult to diagnose, requiring special equipment and trained personnel to analyze soil extracts. Since few labs in Illinois provide this service for all nematode species, the Plant Clinic has been able to help meet the need for nematode assays. 

Also, the clinic facility has been used to train personnel from many private laboratories interested in nematode processing, especially for Soybean Cyst Nematode assays.

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Our staff is here to help.

Diane Plewa, Plant Diagnostic Outreach Specialist
Clinic Phone: 217-333-0519
Office Phone: 217-333-2478 to S-420


The plant clinic is marked in red at the bottom right of the map below. One can use the Assembly Hall, the football stadium, the baseball field, or the track as a close landmark to locate the clinic. Click on the Directions link in the Google Map to create directions from your departure point.

Note: Please disregard Google pop-up zip code and use 61801 to ensure sample delivery.