What health condition of turfgrass is primarily associated with Brown Patch?

Brown Patch is primarily associated with high humidity and surface moisture because it is a fungal disease caused by the pathogen Rhizoctonia solani. This pathogen thrives in warm, humid conditions where excess moisture is present, particularly at night when temperatures rise and humidity levels are high. The disease typically appears as circular patches of brown or wilted grass, which can spread rapidly under favorable conditions, especially when the grass is wet.

In contrast, while excessive heat and aridity can lead to other stress factors in turfgrass, they are not directly linked to the onset of Brown Patch. Low nitrogen levels can affect turf health but do not specifically create conditions that favor this disease. Neglecting proper mowing techniques may contribute to overall turf weakness but is not a primary factor in the development of Brown Patch.