Which symptom indicates the presence of dollar spot in grass?

The presence of dollar spot in grass is indicated by straw-colored spots. This fungal disease typically manifests as small, circular patches of affected turf that can appear bleached or straw-like due to the grass blades losing their green color and vitality. The characteristic appearance of dollar spot includes these light-colored lesions, which can be quite distinct against the overall green of the healthy turf.

In addition to the straw-colored spots, dollar spot often occurs when conditions are favorable for its development, such as high humidity and moderate temperatures. Recognizing this symptom is crucial for timely management and treatment to prevent further spread and damage to the turfgrass.

Other symptoms, such as thinning turf density, may occur as a subsequent effect of the dollar spot disease but are not solely indicative of its presence. Similarly, green circular patches and grayish white spots are more characteristic of different turfgrass issues, such as other diseases or environmental stresses. Understanding the specific symptoms associated with dollar spot helps in diagnosing and addressing lawn health effectively.