How to Bug Proof Your Home from Vinegar Flies (Fruit flies)

Pest Management In and Around Structures September 21, 2015 Print Friendly and PDF


Vinegar flies are so named due to their attraction to the sour odor of fermentation and bacterial waste. They are also known as fruit or pomace flies. Vinegar flies are mainly found on wet decaying plant matter or rotting fruit. This pest poses little threat to people, though it does transmit sour rot bacteria, which aids in the decay of your exposed fruit.


  1. Remove any rotten fruit or other attractive vegetation.
  2. Follow the guidelines for general exclusion. For example caulking cracks, fitting door sweeps and screens etc. Consider that these small flies only require tiny entry points.
  3. Create dry compost by scattering and turning the bin so that it will dry rapidly.
  4. Compost, garbage cans and dumpsters should have tight-fitting lids and be cleaned regularly. All garbage receptacles should be located as far from building entrances as possible.
  5. Use containers with tight-fitting lids for storing cans for recycling and rinse cans well.

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.