Identification Symptoms

  • First appear as chlorotic or yellow (angular) areas near the leaf margins
  • Yellow area extends to veins and midrib forming characteristic ‘v’ shaped chlorotic spots which later turn black
  • Veins and veinlets turn brown and finally black
  • Vascular blackening extend beyond affected veins to midrib, petiole and stem
  • In advanced stages, infection may reach the roots system and blackening of vascular bundles occurs. Bacterial ooze can also be seen on affected parts
  • If the infection is early, the plants wilt and die
  • If the infection is late plants succumb to soft rot and die.