Bondi Junction NSW, Australia
Fact Sheets
Betel nut disease (067)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds


  • Narrow distribution. Only known from Solomon Islands (from Reef Islands). On betel nut. An important disease of unknown cause.
  • Yellow spots, up to 2 cm wide, starting on leaves 6 or 7; long red vertical lines of rot, 1-2 cm wide, on the trunks, narrowing to the growing point, where cavities are filled with gum. Flowers and buds rot. Palms die, mostly before they produce fruit.
  • Molecular tests have shown presence of Coconut cadang-cadang viroid-related nucleic acids, but it is not known if these are the cause of the disease.
  • Cultural and chemical control: none can be suggested until the cause of the disease is known.

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