Bondi Junction NSW, Australia
Fact Sheets
Malay apple gall psyllid (366)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds


  • Restricted distribution. South and Southeast Asia, Oceania. Present in Fiji, FSM, French Polynesia, Samoa.
  • Cosmetic problem on mature trees; may set back seedling growth. Eggs laid on new leaves and shoots. Nymphs suck sap from underside of leaf injecting a toxin. Galls form around the nymphs. Adults emerge from gall, 2 mm long, winged with dark veins.
  • Spread in wind, and plants in horticultural trade.
  • Natural enemies: ladybird beetles, lacewing larvae. Possibly, parasitoid wasps.
  • Cultural control: prune plants in nurseries or trees used as hedges (then apply insecticides).
  • Chemical control: synthetic pyrethroid, malathion to protect new growth. Imidacloprid not recommended because of effect on bees (unless used outside time of flowering).

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