Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:15:09.1902006Z
   4
Pink wax scale (271)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. In tropics and sub-tropics. Common on about 80 plant families, particularly fruit and forest trees, and herbaceous ornamentals, but also ferns, orchids and palms. Citrus and mango are the main hosts.  An important pest.
  • Eggs laid under females. “Crawlers” disperse, settle - often along midribs - moult and feed on sap, with excess expelled as honeydew. Damage by feeding and by sooty moulds growing on honeydew excreta and blackening leaves.
  • Natural enemies: parasitoid wasps, but ants interfere with control by wasps and ladybeetles.
  • Spread by crawlers on wind, and in the nursery trade.
  • Cultural control: check nursery plants are free of scales; prune infested branches; destroy ants (hot water).
  • Chemical control: soap, white or horticultural oils; or synthetic pyrethroids for ant control.

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