Confronted with a bunch of little flies, the homeowner found an old banana peel and figured the problem would resolve itself. A week later they are still fighting and the flie population doesn't see to be dwindling like expected. The most popular home treatment listed was to put out small cups with a cider vinegar and soap solution. Cover it with plastic wrap and poke small holes so when they fly in they would not be able to fly out. This worked partially, they flew all over the cup but only a couple actually went inside. When uncovered it worked better.
Even when the culprit banana was removed they moved onto other places to breed such as kitchen sink drains, any cup or piece of food in the sink. Next they were on window sills, door handles, paper towles, bathrooms, litter box, plants anywhere that had moisture or organic material. The problem is that fruit flies love organic materials like fruit, veggies, soil, anything old and rotting is especially enticing to them. Food prep became a difficult task to ensure everything was covered at all times.
The saga continues....