Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:11:31.5826516Z
   7
Citrus leafminer (240)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. In the tropics and sub-tropics. Most commonly on members of the citrus family, e.g., cumquat, grapefruit, lime, and sour orange. An important pest.
  • A moth larvae damages new shoots of trees; worse in nurseries and on young trees.
  • Eggs laid singly near midribs of young leaves; larvae hatch, mine the surface layers causing leaves to distort. Mines fill with air and look silvery; and they have a central line of excreta.
  • Natural enemies: parasitoid wasps.
  • Cultural control: prune damage on nursery plants and young field trees, and collect and burn the prunings.
  • Chemical control: leafminer worse where pesticides are used against other insects (e.g., Diaphorina that spreads citrus greening or huanglongbing disease). Use pest oils at start of main flush when shoots are 20-30cm long.

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