Elsinoe corni causes the disease known as spot anthracnose, different in many ways from dogwood anthracnose. Infected flower buds do not open or they produce stunted, malformed bracts with numerous small, circular to elongated tan spots with purple to brown borders. There may be up to 50 spots on a bract. Leaf spots have slightly raised purplish edges paling to yellow-gray at centers. The centers will often fall out producing a shot-hole effect. There may be 100 spots on a leaf. Spots on petiole, fruit clusters and stems are similar to leaf spots. Spray treatments are recommended.