Plant and Insect Diagnostic Clinic

green with tan spot that has black pycnidia in the shape of a smiley face

The Plant and Insect Diagnostic Clinic provides diagnoses of plant problems (plant diseases and insect damage) and the identification of insects from the field, garden, and home. The PIDC is a joint effort between Iowa State University Extension & Outreach and the Plant Pathology, Entomology and Microbiology, Horticulture, and Agronomy departments.

Click below on your sample type to find instructions on how to submit to the clinic.