Which disease is characterized by elongated spots on the leaves?

The disease characterized by elongated spots on the leaves is indeed Melting-Out and Helminthosporium Leaf Spot. This condition is known for producing lesions that can vary in color, but they typically appear as elongated streaks or spots on the leaf blades. These spots indicate localized areas of tissue damage caused by fungal pathogens which are part of the Helminthosporium genus.

This specific presentation of elongated spots is crucial for diagnosing the disease, as it distinguishes it from other turf diseases that may present differently. While conditions like bacterial blight can also affect leaves, its symptoms do not typically manifest as elongated streaks. Each disease presents unique signs and symptoms that help in accurate identification and appropriate management strategies.