Symptoms of Myrothecium on basella

• Organs attacked :

• Symptoms
  • Initially, moist to greasy circular lesions located on the limbus or in the periphery.
  • Subsequently, the spots spread widely, take on a pale brown color, and gradually become necrotic (figures 1 and 2).
  • Their center clears up and some discreet concentric patterns can be observed there; a more or less marked and diffuse yellow halo surrounds them.

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• Signs : presence of greyish to black sporiferous pads: sporodochia (figure 2). 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 base :