This disease is difficult to distinguish from other tomato diseases and may need laboratory confirmation. If identified, destroy the plants. Do not compost plant material. Do not plant tomatoes, potatoes or eggplant in the same soil for two to three years. Recently, however, the disease has increasingly been found in home Gardens.
Symptoms begin as dark brown to purple spots on leaves.
The dark areas spread to stems, forming cankers. Stem streaking also may be noticed. Wilting symptoms gradually develop as the disease spreads. However, the leaf tissue is stiff, not limp. The most noticeable symptoms are yellow rings or spots on fruit.