Rots berries, shrivels up and kills rachis. Berries turn brown first and develop small black pustules only when the entire berry has been spoiled.
Affected berries remain round, but occasionally fall off the rachis.
When infected, the rachis shrivels up and dries out. No fungicide is known to provide eradicative control of Phomopsis fruit rot once rot symptoms have developed. Heavy infection on the canes in the spring may provide inoculum for fruit infection during the summer. While such summer conditions are relatively rare, they do occur occasionally and allow the disease to cause serious damage to the fruit. The problem can be particularly severe if the leaves and the canes had a heavy phomopsis infection in the spring.