Are you having problems with FRUIT FLIES this time of year? I am! I've been canning all week and while I've been VIGILANT about getting the scraps out to the compost bins, they've still managed to make it into the house. They drive me NUTS!
My solution? Super simple. Using a shallow bowl, fill it with Apple Cider Vinegar, then drip a few dribbles of dish soap on top. They LOVE the scent of the ACV for some reason, then get stuck in the dish soap that forms a film on top.
I put a trap out tonight - I've already got a dozen dead ones in there - more by morning. Dump it down the drain, or compost it, and make another trap if they are still a problem once you see that the trap isn't attracting them anymore. (After a few days, I refresh the trap if they're still an issue.)
It's Science!