Bacterial spot — Tomato

Symptoms

Small, dark, circular, water-soaked lesions develop on leaves, usually less than 3 mm in diameter. Lesions initially appear greasy on the upper leaf surface and later become brown-black and angular. Numerous lesions may merge, producing large blighted areas on the leaves. Affected leaves may turn yellow and either drop off or dry while remaining attached to the plant. Symptoms are generally more numerous on young, susceptible tissues. Infected seedlings develop increasing leaf spotting, followed by yellowing and, in severe cases, defoliation. Stem and petiole lesions resemble leaf lesions but are elliptical in shape. Immature fruits develop small, raised, black specks surrounded by water-soaked borders. Fruit lesions enlarge and become brown, slightly sunken and scabby, sometimes surrounded by a halo. The fruit lesions are shallow and do not usually cause rot. Ripe fruits are rarely infected.