I would really appreciate quick suggestions. I live alone, and moved to this flat 4 moths ago. This morning I suddenly saw that my kitchen had been invaded by flies
(the big black ones)!! There are maybe 50 of them! I quickly closed the door, so that they wouldn't spread to the entire apartment. I am thinking of three things at the moment.
1. Just rushing in, closing the door behind me and opening the kitchen window. Maybe they will fly out because it is slightly lighter outside.
2. I know these flies are suckers for light. There is a hallway from the kitchen to the main door, leading out to the main common hallway. It is possible to just close the doors in my dark hallway so that the flies might fly from the kitchen door (I would open it) to the main hallway (I can turn on the lights there). But that would be kind of mean, because I don't think the neighbours would like it.
3. Find some kind of insect spray. But I'm not sure how wise it is to use this in the kitchen..
As a side note I am really puzzled by how they got there so fast. I wouldn't think that they can reproduce SO fast. I did forget to bring out some trash, and it might have been left open. But still, yesterday all I could see was one fly, the kitchen window had been closed all night, and I am sure that the kitchen door had been closed.