Every now and then I’ll be having a glass of wine and one single fruit fly will show up and be gone by the next day. I have no fruit in my house. There’s a few vegetables in the fridge. Everything’s clean and there are none in the trash. I’m so confused. It’s happened a few times.
I know fruit flies appearing has been asked 1000 times but I’ve gone through them and can’t find a question without fruit.
In: 2
They are attracted to certain chemicals, esters for one, they are given off by rotting fruit, they are also given off by wine, beer etc as products of fermentation.
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