🌴 Symptoms of Arecanut Leaf Spot Disease The symptoms generally appear on the leaves, especially those in the outer and middle whorls. • Initial Spots: Small, marginal spots often appear on the upper surface of the leaves. • Lesions: These spots can develop into dark brown to black, round or irregular lesions. • Concentric Rings: In some cases, the fruiting bodies of the fungus (conidia) may appear as concentric rings within the discolored areas. • Blight Appearance: As the disease progresses,