BTW, SWIMBO uses a little coffee cup and puts some apple cider vinegar in it with a drop or two of dish detergent and that works great for the kitchen. Guess I'll start doing the same around my fermenters.
I use a half pint mason jar with four nail holes punched in the lid. Fill half way with apple cider vinegar and set them around areas the fruit flies are frequenting. You'll be amazed how many you catch.
From one batch of alcoholic lemonade half the bottles are clear and the rest either have a slimy substance within or what appear to be eggs clinging to the walls of the bottles. When I open these ones a sample neither smells or tastes bad yet it looks like Armageddon in my bottle. Help!
I have fruit flies just now buzzing around my airlock. I'm doing the vinegar/drop of dishsoap trick, but because I'm skittish about my beer I put a spare hop bag that has a very fine mesh over my airlock and carboy neck, and then secured it around the neck with a rubber band. There's no way the little buggers will be able to get through that AND the airlock.