Spotting on the leaves, stems, and fruit. The most conspicuous spots are on the fruit. Occasionally, 2-mm black spots that have a greasy appearance develop on the leaves and stems. On the fruit the spots form slightly raised rough, black, scabby lesions, in the centre of which numerous cracks sometimes occur.Although the spots may enlarge to 6 mm in diameter, they do not extend deep into the fruit. The symptoms sometimes closely resemble those of bacterial speck.
Especially in tropical and subtropical regions where environmental conditions favor infection and disease development. Pathogen induces in the whole plant via soil. Due to its adaptability and population diversity, the pathogen frequently overcomes all of these currently used disease control strategies.