I accidentally found out that a halfdrunk bottle of beer did the trick.
Somehow they were attracted to it and after a few days they all were in there drowned.. don't know why and it's their personal business how much they like to drink,
But i got rid of them. Try it.
Accidentally? How exactly did you get rid of them?
Accidentally by not drinking the whole bottle and then forgetting about it.. when i emptied the rest of the beer a day or two later in the sink dozens of dead fruit flies were floating in it.
I don't know exactly why.. maybe the smell lures them in and they get overwhelmed or something like that. I only know that it works.