Symptoms of stemphyliosis on eggplant

• Organs attacked :

• Symptoms :
  • Initially small circular to elongated chlorotic lesions (Figure 1).
  • Subsequently, the spots expand, turn brown, and gradually become necrotic. A reddish-brown border encircles them. Their diameter can be more than 1 cm.
  • The center of the spots lightens gradually taking on a gray to whitish tint (figures 2 and 3), and sometimes presents concentric patterns giving them a so-called "frog eye" appearance. A yellow halo is sometimes visible.
  • Similar but elongated lesions are sometimes visible on petioles and stem.
  • Degraded fabrics dry out, split and eventually fall off; the leaf blade is thus partially riddled (figure 4).
  • Severely affected leaves turn yellow, wither, and may drop.

• >>> More pictures
• Signs : Fruiting bodies of the fungus dot the lesions, sometimes giving them a slightly light gray tint.
• Possible confusion : rare

• Production areas affected :

•  Stemphylium spp. reported on eggplant :