Target SpotCaused by: Corynespora cassiicola
Problem Category: Fungal Disease
Symptoms: The fungus infects all parts of plant. Infected leaves shows small, pinpoint, water soaked spots initially. As the disease progress the spots enlarge to become necrotic lesions with conspicuous concentric circles, dark margins and light brown centers. Whereas the fruits exhibit brown, slightly sunken flecks in the beginning but later the lesions become large pitted appearance.
Comments: The pathogen infects cucumber, pawpaw , ornamental plants, some weed species etc. The damaged fruits are susceptible for this disease.
Management: Remove the plant debris and burn them. Avoid over application of nitrogen fertilizer. If the disease is severe spray suitable fungicides.