In Cool Tools, Oliver Hulland explains how he kills fruit flies with a bowl of apple cider vinegar and dish soap.
Fruit flies can materialize in even the most spotless kitchens. Until recently, I had no idea that they could be dealt with in a safe, effective, and cheap manner using apple cider vinegar and dish soap.
By simply pouring apple cider vinegar into an open cup or bowl and adding a drop or two of dish detergent you can easily make an incredibly effective trap for ridding your kitchen of fruit flies. Place it near your fruit bowl or trash can and within a day you will have nipped the problem in the bud.