Bondi Junction NSW, Australia
Fact Sheets
Banana diamond leaf spot (072)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds


  • Widespread. In the tropics ('old world'). On banana only.
  • Oval to diamond-shaped spots up to 10 cm, brown, zoned, with yellow margins, often on spots of black cross (Phyllachora). Often merge at leaf margin.
  • Spores on underside, turning spots greyish/brown.
  • Minor importance on Cavendish; more severe on cooking bananas. Worse if misting oils used for black Sigatoka disease control.
  • Cultural control: resistant varieties.
  • Chemical control: Unlikely to be needed.

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