Do you have houseplants? I'd double-check the soil and any succulents to make sure they haven't been infested. I've had to lose some awesome plants because of fruit flies.
Ooo, I hadn't thought of that. Just a couple philodendrons, but that could be a breeding ground.
Funnel traps for the win - this is what they use in research labs, and what we've used when we've had infestations. (Doing vermiculture in our livingroom, it's something we have to keep an eye on.)
Take some kind of reasonably wide mouthed bottle, and put into it something redolent of fermenting fruit. (I use a little honey, some lemon juice, and some sour dough starter, other people use apple cider vinegar...) Make a funnel out of paper (yellow is best) - the hole should be small, maybe 3mm - a fruit fly should be able to get in easily, but no bigger. Fit the funnel into the mouth of the bottle, point down, and tape it in place so there are no escape routes on the side. The flies will be attracted to the scent and climb into the bottle through the funnel, but can not get out.
That's a great idea. I will set off to try this right now.
Edit: made. We'll see how it works!
Edited at 2010-08-04 03:04 pm (UTC)
We've been having fly problems too, I've got funnel traps and fly strips (ugh). It's just that time of year when they want to come in out of the heat and be our pals. I didn't think to check the house plants! YUCK.
Outside flies I deal with via the "rolled up magazine chase until killed" method. That doesn't work with nanoflies.
they like balsamic vinegar. you can trap them by diluting some in water with some soap. then the suckers will drown
i had an infestation of fruit flies last summer. quick trap:
mix about a teaspoon of granulated yeast with three tablespoons of warm water. stir until dissolved.
take a plastic baggie, and snip off just the TIP of one corner. then put the yeast in a large jar, the baggie into said jar with snipped tip down (like a funnel) and use a rubber band to hold the bag tight to the jar. the fruit flies will smell the yeast, crawl down to get to it, and not be able to find their way out.
then, fill each sink/drain you have with 1/4 (the size of the sink) HOT water and a good splash of bleach. let it sit, then drain, to kill eggs. throw out EVERYTHING that might have harbored fruit flies.
it's a real pain in the ass, and i hate dealing with bleach and such, but it works. it also doesn't bash your monitors in. or your face. (i personally wait for them to land on my face, and then go WHACK and swear for a long time as they fly away, little bastards.) oh. a second thing? make sure they're not fungus gnats.
I've thrown out all possible fly-harboring foods and am working on a variety of traps. The sink thing is a good idea.
HA. Good luck! I'd throw a little bleach down the kitchen sink, if you haven't yet (admittedly this is better for drain flies than fruit flies, but still).
I'm going to do that, though it's against all safety precautions EVER when one has a garbage disposal.
Do you keep wine in the house? If so, a glass of wine, left out, with a small dollop of dish soap in it will be an effective trap for them. They LOVE wine, but the soap will break the surface tension, and the poor buggers will drown.
Another effective trap is to take a soda bottle, cut a hole in the bottom, between the little bubble thingies, and put vinegar and soap in the divots. They will fly in to the vinegar, and never leave.
Also, be scrupulously clean while you still have the infestation. Even the tiniest bit of food left out will screw you. The eggs only need 24 hours to hatch. Not that I assume you're dirty, but we all make tiny mistakes.
You also might want to wash your trash and recycling cans out. The little buggers are amazing in what they'll inhabit.
I've fought my own battles with bugs. They are nasty, disgusting, tenacious creatures, but I know that you will win!
Taking out the trash daily is going to be required. And putting away food very carefully. It's going to be a struggle, but we will overcome.
I made one of those. It's a total fail so far.
a few weeks ago I watched as a fruit fly crawled out from a pile of saffron rice I had been eating. My eyes lit up with excitement, and wonderment, as the little guy hopped off of my plate and then took to the air. I frantically pointed it out to my friends, though I am not sure if it was because I wanted to share or because I wanted witnesses, as it flew up and away. After a few seconds we lost him to the dining hall and all that remained was a good story.
I am spending the winter in Antarctica. Occasionally we get some bugs down here during the summer season but they are extremely rare during the winter. I haven't seen a bug since early Jan so it was all quite magical.
Wow! That is pretty amazing.
We kept getting fruit flies for a while because I insisted on letting the bananas get really really ripe before I cooked them. So we tried a whole bunch of traps and those funnel traps worked best. Now we just make one out of an empty quart-sized yogurt container whenever I buy bananas. :)
We've just about recovered at this point, thank heavens.