What is one distinguishing feature of Fairy Ring on turfgrass?

The defining characteristic of Fairy Ring on turfgrass is the presence of rings or arcs of lush, rapidly growing green grass, which create a distinct appearance in the lawn. These green patches arise from the mycelium (fungal network) of the decomposing fungi associated with Fairy Ring, which release nutrients into the soil, promoting enhanced growth in the surrounding grass.

This phenomenon can also result in surrounding turf exhibiting stress or less vigorous growth, sometimes giving rise to contrasting zones of green and brown grass, but the key indicator is indeed the prominent rings of healthier grass. The other features listed, such as yellowing grass or dry and brittle leaves, do not characterize Fairy Ring; instead, they relate to different turfgrass issues that are not associated with fungal growth and nutrient enrichment caused by the fungi responsible for Fairy Ring.