- The leaves exhibit small, circular or irregular, dark brown or black greasy spots. As the spots enlarge in size, the center becomes lighter surrounded by a dark band of tissue.
- The spots coalesce to form irregular lesions. Severely affected leaves become chlorotic and fall off. Petioles and stems are also affected.
- Stem infection leads to the formation of cankerous growth and wilting of branches. On the fruits, round, raised water-soaked spots with a pale yellow border are produced.
- The spots turn brown developing a depression in the center wherein shiny droplets of bacterial ooze may be observed.
Gramophone
