Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:13:45.1658352Z
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Leafminers - General (110)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Worldwide distribution. There are several types attacking cucumber, bean, tomato, cabbage, and other families, and many plants in the cut flower trade. Damage is done by the larvae or maggot; the adult is a fly. 
  • Eggs laid beneath leaf surface; larvae hatch and mine the leaves, which dry up and fall early; loss of leaves may cause sunburn. Damage also done by female using ovipositors to feed on sap (both sexes feed on nectar).
  • Biosecurity: not all species in all countries.
  • Natural enemies: many exist giving effective control.
  • Cultural control: remove weeds as they are leafminer hosts; collect and destroy trash after harvest.
  • Chemical control: Bt (Bacillus thuringiensis), spinosad, abamectin, cyromazine; resistance to pyrethroids exists.

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