Fruit Flies

Drosophila spp.

Fruit Fly

Adult fruit fly (Mohammed El Damir,

Fruit Flies

Fruit flies feeding on cake (Pest and Diseases Image Library,

Fruit fly

Fruit fly adult (Muhammad Mahdi Karim, Wikimedia Commons)


  • small; 1/8 inch long
  • bright red eyes

Nesting Habits

  • eggs laid on ripe or overripe fruit, vegetables or decaying organic material


  • ripened fruit, vegetables or decaying organic material


  • nuisance indoors
  • can transmit disease through contact

IPM Recommendations

  • Keep exterior doors closed, install screen doors or install an automatic door closer, especially on doors leading into the kitchen.
  • Exclude fly entry via caulking, weather stripping, door sweeps, screens, etc.
  • Keep screens in good repair.
  • Locate breeding susbstrate, if possible, and remove.
  • Improve sanitation, especially with fruit and food material, soda cans (recycle), juice boxes, mop and broom heads and even floor drains.
  • Keep dumpsters at least 50 feet from the building.
  • Keep trash cans, dumpsters and garbage areas clean and free of odor.
  • Close lids on dumpsters and garbage cans.
  • Regularly clean floor drains.
  • Vinegar traps or commercially produced fruit fly traps can catch flies that come indoors.

Additional Resources

IPM for Flies: Integrated Pest Management in Sensitive Environments (University of Nebraska-Lincoln Extension)