Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:12:11.9410157Z
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Coconut stick insect (102)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Narrow distribution. Southwest Pacific. On coconut, sago palm, Pandanus and some wild palms. Outbreaks occur, when it is an important pest.
  • Adults strip leaflets, leaving the midrib. Occasionally, defoliation occurs over several hundred hectares. Mature palms >25 m most affected.
  • Eggs in the crown, fall into the leaf base, leaf litter or weeds. Nymphs climb to the crown. Only males fly.
  • Natural enemies: chickens and myna birds take nymphs on the ground. There are parasitoid wasps that have been bred for biocontrol.
  • Cultural control: sticky bands around trunks (e.g., 'Tanglefoot'); control weeds to expose eggs to sun; intercrop with cocoa – nymphs climb the cocoa and starve; note, lighting fires to smoke the insects no longer acceptable as fires damages the palms.
  • Chemical control: none recommended.

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