In order to kill fruit flies, you can mix vinegar with warm water and dishwashing liquid and then place it in a glass jar and place it in a warm place. The fruit flies will be attracted to the vinegar and will drown. Another method is to use wine in a wine bottle. Moreover, wine is made from fermented fruit and has a strong smell that fruit flies cannot resist.
However, you must keep in mind that prevention is better than cure, and this means that you must prevent fruit flies from entering the house in the first place. Buying fresh produce often brings fruit fly eggs and larvae home with you, and these can grow into fruit flies very quickly.
You can also create a trap for fruit flies by mixing vinegar with dish soap. Dish soap breaks the surface tension of the liquid, making it highly attractive to fruit flies. You can then stick a paper funnel into the neck of the bottle to trap them and prevent them from escaping.
A paper funnel can be used to trap fruit flies. This funnel can then be placed in a jar of vinegar. Fruit flies cannot escape this trap. To keep it in place, use a rubber band to secure the plastic wrap.