The problem is, I don't know where they are bloody coming from! I thought it was from the hole for the light but I blocked that and they are still coming in (it's top - 3rd - floor appartment). There's no ventilator to the outside so they can't be coming from that and I can't see where else they could appear from.
I thought that by end of October they would have died off, wherever they are coming from, but I guess warmer than usual autumn isn't helping. It was +18 in London today! I have an insect aerosol spray thing that I use to treat the flat on a weekly basis but it's really annoying. Will they come back in the spring? We should move back to Somerset/Wiltshire next August/September but until then, I am not looking forward to another wasp filled year!
