How To Get Fruit Flies Out Of Your Room. Flies that enter the trap are unable to escape and continue breeding. Unlike fruit flies, there’s a lot of variation in diet and habitat needs between different gnat types.

Those small black flies in your kitchen are most likely phorid, drain or dark fruit flies. To get rid of fruit flies, pour approximately a half cup of apple cider vinegar into a small bowl, add a few drops of dish soap, place the bowl near the fruit flies, and wait a day or two. Drain flies are small—measuring an eighth of an inch, which is about the size of a fruit fly or a gnat (it’s easy to confuse them, as a matter of fact).