We have had an invasion of fruit flies round here this week – Wednesday morning I came into my kitchen to find them everywhere.
I was worried I had left something out, or let my bin get dirty, but apparently, it is also happening elsewhere.
Anyway, I was passed this tip. Into a small glass, pour an inch of vinegar – something fragrant, like cider vinegar. Add a squeeze of washing up liquid, and also wipe the inside rim of the glass with washing up liquid. This attracts, traps and kills the flies, and is easily cleaned out. It doesn’t smell nasty, and is very effective. I’ve just emptied a glass with a few dozen flies in, and the kitchen and lounge is relatively clear.