What are the typical stand symptoms of Large Patch?

Large Patch, caused by the fungus Rhizoctonia solani, is characterized by irregular patches of thin turf that typically range from 1 to 2 feet in diameter. These patches often exhibit a distinct border and may gradually expand, leading to a more extensive area of damaged turf. The grass in these areas becomes yellowed and may eventually turn brown, resulting in the thinning of the lawn.

The symptoms associated with Large Patch specifically involve the formation of these irregular patches rather than uniform browning or entirely healthy grass. This differentiates it from other potential lawn issues as well as other diseases that may present differently. Uniform brown coverage generally suggests a broader issue such as drought stress or different types of fungal infections, while bright green grass is indicative of health rather than disease. Thick turf with dark tips is often a sign of other problems, such as over-fertilization or other turf grass diseases, and does not align with the symptoms of Large Patch.