Cowpea Wilt

(Fusarium oxysporum f. sp. tracheiphilum)

Credits: Biovision-Infonet

Cut roots of pea plant infected with Fusarium wilt . Note reddish discolouration
(c) A.A. Seif, icipe
Fusarium wilt on peas
(c) A.M. Varela, icipe
Fusarium wilt on beans
(c) A.M. Varela

Fusarium wilt usually causes the lower leaves on one side of the plant to turn yellow.

Infected plants usually are stunted and wilted as the organism develops in the food and water conducting tissues.

Brick red tissue can be observed in the stem when it is split lengthwise.

What to do:

  • Use resistant varieties, if available.
  • Control root-knot nematodes since nematodes increase plant susceptibility to Fusarium wilt.

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