Where Do Fruit Flies Come From in the House? Infestations have to start somewhere. Fruit flies move into kitchens, bathrooms, and basements if they sense a food source. Overripe fruit on the counter or any fermenting matter in drains, mops, and trash bins appeals to them.

How do you find the source of fruit flies?

Look first for fruit fly sources in areas where vegetables or fruits are stored outside refrigeration. Also look for fruit fly sources in garbage cans, under appliances, and recycling bins. Even a little-spilled juice behind an appliance can contribute to their breeding.

How do fruit flies get in the house?

Make a trap with apple cider vinegar and plastic wrap. Trap flies with a paper cone, vinegar, and old fruit. Drown flies by leaving out a bowl of vinegar and dish soap. Put out an almost-empty bottle of old wine or beer.