The TDL will be CLOSED between July 10th and July 21st. Please click here for more information.

The Turfgrass Diagnostic Lab (TDL) provides fast and accurate diagnostic information and management recommendations for all turf health issues.  We can help with a variety of issues including lawn disease and dead grass.

Proper diagnosis and management can provide a lush, healthy stand of turf with limited pesticide applications.  This will benefit the environment, increase property values, and allow for recreational activity.

We serve both commercial turfgrass managers and homeowners.

TDL is a nonprofit service supported by faculty and staff of four departments at the University of Wisconsin-Madison: Plant Pathology, Horticulture, Soil Science, and Entomology.