Petiole lesions can occur on the bottom of the petiole, which bends sharply at that point and the leaf hangs down. Sometimes the disease begins as the black leaf spot phase. Spots are round, less than .25 inches, gray becoming black, and can become numerous without killing the leaf. They are usually first found on expanding leaves of runner plants. The fungus can move into the crowns from petiole and stolon cankers, or from spores washed into the central bud from these cankers.
Infected plants grow normally for a while, the wilt and die.
A reddish brown, firm rot or streaking develops in the crown, best seen by cutting the crown lengthwise. On fruit, round, firm, sunken spots develop which are light tan, becoming black. The spots enlarge and rot the entire fruit. Green fruit can also be infected when the disease becomes severe. Since most plants produced in the Southeastern United States have some anthracnose in them, control of this disease is difficult.