Which of the following describes the plant symptoms of gray leaf spot?

The characteristics of gray leaf spot are accurately described by small brown-to-tan spots with distinct brown-to-purple borders. This fungal disease is caused by the pathogen Pyricularia grisea and typically appears on leaf blades, leading to the formation of these distinctive lesions. The borders of the spots often exhibit a darker color, which can create a noticeable contrast against the lighter centers of the spots. These symptoms help in identifying the disease in the field, as they are distinct from other diseases that might affect turfgrass. Identifying these specific foliar symptoms is crucial for effective management and treatment options for gray leaf spot, which can significantly impact turf quality if left unchecked.