Spray with approved fungicide beginning when fruit is first set and repeat at 10-day to two week intervals until fruit is nearly mature. Use a three year crop rotation. Florida High Bush, Florida market and Florida Beauty are resistant. This disease can be destructive on eggplant at any time in the life of the plant. It can cause seedling dieback known as collar rot.
Later infection is on the foliage beginning on the lower part of the plant and developing upward.
Spots are characterized by concentric rings which give a target appearance. Plants which are well fertilized and irrigated are not as susceptible. Infection of the fruit pedicels may cause a premature fruit drop. It requires eight to 10 days after infection before visible symptoms develop to the extent that epidemic levels are reached. Injured fruit are more subject to attack by the fungus than healthy fruit.