Main symptoms

In the presence of Corynespora cassiiicola , small moist lesions appear on the upper surface of the leaves (Figures 1 and 2). They have a radial growth and are sometimes locally limited by a vein (figure 2). Rather circular, they can reach 2 cm in diameter and are surrounded by a clearly visible yellow halo (figure 6). Concentric patterns are also present on certain spots, which recall those of a target (target spots) (Figures 3 to 6). The spots can be likened to those caused by A. tomatophil a.

Brown, longitudinal lesions also appear on the stem (Figure 7) and petioles (Figure 8); they sometimes completely surround these organs, causing the leaflets and leaves to dry out.

On young fruits , the lesions are small, light brown with a darker margin and dry in consistency. They are wider and circular on ripe fruit. Slightly depressed, they eventually turn brown and split in their center. Fruiting bodies of the fungus may dot the lesions, sometimes giving them a slight dark gray to black tint.