Lawn diseases are generally caused by pathogenic fungi that occur naturally in the thatch and soil, however only a small number of fungi varieties cause disease symptoms. The vast majority of fungi are beneficial, and contribute to the biodegradation of dead plant material as well as the breakdown of complex organic compounds into useable nutrients that the plants can absorb.
Symptoms of disease in a lawn can appear in a number of ways, depending on the fungi. You might see brown circular spots, dead rings, irregular patches growing on grass blades, or the roots may appear black and rotten.
Think your lawn might be experiencing symptoms of turfgrass disease? Talk to your local Nutri-Lawn so they can help diagnose the issue and recommend the best course of action.