Fruit flies are not fond of clean surfaces so keep benches and table tops as clean as possible, wipe up sugary spills quickly and lightly spray trouble areas with a solution of 300ml water and a few drops of peppermint or eucalyptus essential oil.
Keep your sink and drain clean and free of any food particles, just to be sure flush with white vinegar and baking soda this will help to lift any residue stuck in and around the drain.
To catch these pesky little flies make a trap, here’s a few options.
Apple Cider Vinegar Trap
Fill a bowl with the vinegar and add a drop of dish soap, mixing well. The apple cider vinegar tempts the flies with its stale sweetness, and the dish soap actually works to decrease the surface tension of the liquid, so the flies are immediately immersed upon investigating and can’t escape.
If you’re not having much luck with that roll up a piece of paper and make a funnel, put that into a jar with the mixture in the bottom, this will trap the flies.
Quick & Easy Method (if you drink wine or beer)
Leave a bottle of old wine or beer out near where the fruit flies were spotted. They’ll be lured in by the stale beverage, but the narrow neck of the bottle acts as a natural barrier to keep them trapped.