Turf Samples
If a problem is suspected, send a sample from the declining area to the Plant and Pest Clinic as soon as the symptoms begin (if possible) along with a letter describing the symptoms and the history of the site. The history should include a watering regimen, and any fertilizer and pesticide/fungicide regimen.
The more information provided to us, the more complete the reply.

  1. Dig a sample of 6 inches square and 3-4 inches deep including the roots and attached soils.
    • The sample should include both dying (or dead) turf and healthy turf which has not been affected.
    • Diagnosticians will examine the most recently infected turf, as pathogens progress from dying to healthy turf.
    • If a culture of the disease is necessary, the pathogen must be isolated from the sample and "grown" in the lab.
  2. Wrap the sample with newspaper or tin foil, do NOT use plastic, and do NOT add water.
  3. Place the sample in a box and add packing material so that the sample is not broken up during shipment.
  4. If possible, PLEASE include photos of the turf area where the samples were taken from.
  5. Place the letter, and photos in a ziplock baggie to keep them dry.
  6. The CWEPPDC will charge a fee for its diagnostic services. Expect to receive a bill if payment is not included with the sample (checks can be made payable to The Ohio State University).
  7. Print and fill out a turf form
  8. Send the samples to the following address overnight or as soon as possible, as turf decomposes quickly.