Common Lawn Diseases

Common lawn diseases can be avoided with proper care and Milorganite.

Ever wonder what’s going on with that patch of dead grass on your lawn? Is it a disease; is it insect or pest damage?

Below are images and descriptions of some of the most common lawn diseases, including the management tools you’ll need to get your lawn back on track. A disease will not occur unless three factors are present simultaneously over a certain period of time. The three disease development factors are:

  1. Susceptible plant
  2. Favorable environment
  3. Pathogen

The first step is to identify if you have northern or southern grass. If you need help determining your grass type visit the northern and southern grass pages.

Northern (Cool Season) Grass Diseases

Southern (Warm Season) Grass Diseases