Patch Disease Research

University of Wisconsin  Patch Disease Research

Project Overview

  • In 2015 the Department of Plant Pathology at the University of Wisconsin – Madison, with support from the OJ Noer Foundation, initiated a research project investigating the common patch diseases of cool-season turfgrass: take-all patch, necrotic ring spot, and summer patch.
  • The primary goal of this research is to develop highly sensitive detection assays for each of the patch diseases that can be used by diagnostic facilities to aid in diagnosing these confusing diseases.  It is the hope that these assays will make patch disease research easier to conduct, which will increase the amount of research being conducted on these frustrating diseases.

We Need Your Help!

  • To help develop the assays we need to collect as many isolates of each root-infecting pathogen as we can.  So if you notice any take-all patch, necrotic ring spot, or summer patch on your facility  please submit it to the Turfgrass Diasnotic Lab for identification using the following simple steps:
    • Take a 4-inch diameter core (ie cup cutter size) from the edge of the patch.  Go down about 3-4 inches to include ample roots in the sample.
    • Wrap the core in aluminum foil, do NOT wrap in moist newspaper or paper towel.
    • Place wrapped core in a box with packaging to keep it from moving during transit, include completed Patch Disease Submission Form, and promptly mail to the Turfgrass Diagnostic Lab at 2502 Highway M, Verona, WI 53593.
  • Please remember to complete and include the Patch Disease Submission Form when submitting the sample.
  • Not sure if you have a disease? Check out our take-all patch, necrotic ring spot, and summer patch ID pages for more information. Still not sure? Submit it anyways and we’ll identify it regardless.


Contact Information

Paul Koch, Ph.D.

Assistant Professor

Department of Plant Pathology

608-576-2673 (mobile)