Fig. 1

Fusarium wilt internal and external symptoms progression on Gros Michel infected banana variety. A indicates No symptoms on uninfected banana variety, B indicates initial rhizome discoloration and yellowing notably on the lower leaves, C indicates slight discoloration of the rhizome throughout the vascular system and most of the lower leaves have become yellow, D shows rhizome with necrosis in the majority of the interior tissues and wilting on all leaves, while E indicates rhizome totally necrotic, complete wilting/Plant dead