Lately, I have had small infestation of what I assume are fruit fly's. A quick search on the internets, and I was given this remedy : a small container filled with vinegar, and a couple drops of dish soap placed near the trash. The fly's go in for a swim, and they never come out....and it absolutely worked...who knew ?
Except, now my kitchen smells of vinegar, which reminds me of some horrible chili I had at a local restaurant...but that is a whole different story.
Etymology : The word 'vinegar' comes from the Old French vin aigre, meaning "sour wine".