The PDDC continues to have limited capacity to process physical samples.  Click here for details on the clinic’s current submission process.  Last Update:  January 11, 2022.

The PDDC will continue to rely heavily on making digital diagnoses.  Click here to submit your photos.  There is a $20 fee for digital diagnostics.  For a complete list of fees, click here.

Plant Disease Diagnostics Clinic Mission

The University of Wisconsin-Madison/Extension Plant Disease Diagnostics Clinic (PDDC) provides assistance in identifying plant diseases and provides educational information on plant diseases and their control.

PDDC clients include agricultural and horticultural producers (e.g., farmers, nursery owners), agricultural and horticultural professionals (e.g., crop consultants, arborists), home gardeners, Extension staff and Master Gardener volunteers, and state and local government (e.g., Wisconsin DNR, city and county foresters).

While the Plant Disease Diagnostics Clinic focuses on plant disease problems in the state of Wisconsin, any interested party is welcome and encouraged to take advantage of and participate in the Clinic’s educational services and activities.

If after exploring this website, you have questions about PDDC services feel free to contact the clinic at 608-262-2863 or bdh@plantpath.wisc.edu.


May Events

Wisconsin Horticulture Update – UW-PDDC Update
May 13, 2022
9:50 – 10:00 AM
Statewide via Zoom

Wisconsin Horticulture Update – UW-PDDC Update
May 20, 2022
9:50 – 10:00 AM
Statewide via Zoom

University of Wisconsin-Madison