Cooperative Extension: Plant Disease Diagnostic Lab

Important Notice:

Due to the public health concern caused by the COVID-19 virus, all University of Maine offices and facilities are closed to the public. Extension personnel are working remotely. We have adjusted diagnostic services until further notice. We appreciate your understanding and patience during this uncertain time.

Walk-in and mail-in samples will no longer be accepted for any diagnostic service until further notice.  However, you can still call us, email us, and send images. You can reach Alicyn Smart from the Plant Disease Diagnostic Lab by email at or by phone at 207.581.3883.

  • Plant samples received after Wednesday, March 18 will likely need to be resubmitted when services resume.
  • Plant and insect digital samples: The Plant Disease Diagnostic Lab and the Insect ID Lab are accepting digital samples sent by email. Submissions must include your name, phone number, business name, county, host plant, problem, date when symptoms were noted and good, in-focus images.

The Plant Disease Diagnostic Lab is part of the Pest Management Unit within the new UMaine Cooperative Extension Diagnostic and Research Laboratory.  The lab is also a part of the National Plant Diagnostic Network.

Diagnostic Lab Personnel:

  • Dr. Alicyn Smart, DPM — Plant Pathologist & Director of the Plant Disease Diagnostic Laboratory
  • Abigayl Novak — Lab Technician III

Additional Resources:

We are located at 17 Godfrey Drive in Orono, Maine, just off from Interstate 95, Exit #193 (not far from the Black Bear Inn).


Currently closed (see notice above) – Otherwise: 8:00 a.m. – 4:30 p.m., Monday-Friday (closed holidays)