Bondi Junction NSW, Australia
Fact Sheets
Breynia bunch (478)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds


  • Narrow distribution. Malaita and Guadalcanal, Solomon Islands.
  • Serious disease of Breynia, a secondary forest species, associated with a phytoplasma identified by electron microscopy. Note, phytoplasma are bacteria that grow only in the phloem of plants; none have so far been cultured in the lab.
  • Shoots proliferate developing massive bunches of little leaves, along the trunk, but mostly along branches. Dieback eventually occurs, and death, as trees become overgrown by other species.
  • Spread: leafhoppers or planthoppers are likely to spread the disease, but none identified so far.
  • Cultural and Chemical control: none recommended. Breynia is not a tree of economic importance.

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