What color are the lesions produced by corn gray leaf spot?

The lesions produced by corn gray leaf spot are characterized by a distinctive gray color, which is a key identifying feature of this disease. Gray leaf spot is caused by the fungus Cercospora zeae-maydis and typically manifests as elongated lesions that start out greenish before turning gray as they mature. Understanding this coloration is critical for proper diagnosis and management of the disease in corn crops. This knowledge assists growers in recognizing early signs of the disease, allowing them to implement effective pest management strategies to minimize yield loss.