Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:12:09.0269303Z
   3
Coconut scale (104)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. Main hosts are coconuts and banana, but also avocado, breadfruit, cassava, guava, oil palm, sugarcane. An important pest.
  • It is an armoured scale with a hard covering over its body. Eggs are laid under the scale; "crawlers" (nymphs) hatch, disperse (walk, wind, animals), but soon settle to feed and form the armour. Males are tiny, mosquito-like, mate and die. Females produce offspring even without mating.
  • If numerous, fronds yellow, dry, fall and palms die.
  • Natural enemies: ladybird beetles, parasitoid wasps.
  • Cultural control: none recommended.
  • Chemical control: soap, white or horticultural oils; do not use synthetic insecticides as they will destroy predators and parasitoids, and delay natural control.

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