Symptoms of Myrothecium on Okra

• Organs attacked :

• Symptoms
  • Wet to greasy circular lesions at first (figure 1).
  • They expand and take on a dark brown hue, and gradually become necrotic; a more or less marked and diffuse yellow halo surrounds them.
  • Degraded fabrics dry out, split and eventually fall off; the blade is more or less perforated (figure 2).

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• Signs : presence of greyish to black sporiferous pads: sporodochia. These structures are made up of numerous phialides which form at their end cylindrical conidia, hyaline to slightly olive-coloured.
• Possible confusion : Sigatoka

• Production areas affected :

•  Myrothecium spp. reported on okra :