Bondi Junction NSW, Australia
Fact Sheets
Cryptognatha nodiceps (396)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds


  • Widespread distribution. In Oceania, Fiji, French Polynesia, Northern Mariana Islands, Vanuatu. Preys on coconut scale (and other armoured scales, e.g., white peach scale. Eats up to 20 scales a day.
  • Eggs laid under scale covers (after scale eaten). Larvae yellow, covered in waxy filaments (outgrowths). Adults, nearly round with black wing cases and brown heads.
  • Said to be effective in Fiji (distributions made throughout country) and Jamaica against coconut scale, but poor results elsewhere. Not certain if still in Fiji.
  • Biosecurity: need to assess risk before introduction as it is not specific to coconut scale.
  • Cultural control: hot water to kill ants: 47°C (note, 49°C kills plants).
  • Management: (i) move adults and larvae to colonies of pests; (ii) use sleeve cages to protect populations initially; (iii) avoid use of organophosphates, carbamates and synthetic pyrethroids; (iv) control ants: (a) stomach poisons (fipronil, Amdro®, borax), (b) growth regulators (methoprene, pyriproxyfen), (c) nerve poisons (bifenthrin, fipronil, imidacloprid). See (

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