Symptoms
Leaf symptoms begin as small, pale yellow or water-soaked lesions that rapidly enlarge and turn tan to dark brown or irregular and black. As lesions merge, large areas of the leaf may appear blighted or entire leaves may die. Defoliation and killing of infected vines are common on cucumber and muskmelon. Young cucurbit fruit may turn black, shrivel, and die if fruit pedicels are infected. Circular, water-soaked spots develop on older fruit. These lesions soon become sharply sunken and then pinkish in moist weather. Lesions gradually turn green to black and vary in size from 1/4 inch to 2-1/2 inches in diameter. Anthracnose lesions occur on both green and red pepper fruit. Lesions often have visible concentric rings that are composed of tiny fungal fruiting bodies. Tomato fruit lesions are very similar to that of pepper fruit.