Diagnostic and soil labs

Updated August 15, 2026

Turf disease and nematode diagnostic labs

If you are in any doubt about the identity or cause of a turf problem, we highly recommend the use of a qualified turf diagnostician. Fortunately, there are several labs that provide this service. Check with your local land grant university and/or county extension agent for information on regional diagnostic laboratories. If none are available, the following labs provide nationwide services (and in some cases can accept international samples) for reasonable fees. Labs should be contacted prior to sample shipment for specific preparation and shipping instructions.

Rutgers Plant Diagnostic Laboratory
Website: Rutgers Diagnostic Lab

NC State Turf Diagnostic Lab
Website: NCSU Diagnostic Lab

University of Wisconsin Turf Diagnostic Lab
Website: University of Wisconsin TDL

Penn State Turfgrass Pest Diagnostic Lab
Website: Turf Pest Diagnostic Laboratory

University of Florida Rapid Turfgrass Diagnostic Service
Website: UF Rapid Turfgrass Diagnostic Service

University of Florida Nematode Assay Lab
Website: University of Florida Nematode Assay Lab

Oregon State University Turfgrass Diagnostic Lab
Website: OSU Turf Diagnostic lab

Purdue Plant and Pest Diagnostic Lab
Website: Plant and Pest Diagnostic Laboratory

Mississippi State University Plant Disease and Nematode Diagnostic Laboratory
Website: Mississippi State University Plant Disease and Nematode Diagnostic Services

The Turf Disease Centre
Website: Turf Disease Centre

New Mexico State University Plant Diagnostic Clinic
Website: NMSU Plant Clinic

Soil analytical laboratories

We work with and recommend Brookside Laboratories. Contact us if you’d like to do some testing.

PACE Turf’s soil, water, and leaf tissue guidelines are available here:

There are many commercial laboratories such as Waypoint Analytical and Spectrum Analytic that can do routine soil nutrient analyses. We recommend using the guidelines above if you will interpret your own test results.

You may also be able to get testing done at a local or regional university soil lab.