Wasps nest in the roof

[Fido]

Is there a sort of smoke bomb you can lob up that makes them all drowsy so you can zip in, SAS-lie, and stuff the lot of them a bin bag?

[Owen]

Careful of their circular saw codpieces, mon.

[Baggpuss]

Is there a sort of smoke bomb you can lob up that makes them all drowsy so you can zip in, SAS-lie, and stuff the lot of them a bin bag?

Our neighbour used to do pest control and was invaluable when we had a nest in the carden.
I used to spray it with wasp killer (then leg it!) but the ******s kept surviving.
He looked at the stuff I had and told me it was rubbish and to make sure I got some containing 'bendiocarb'.
He brought his spray round, used it once and it was goodbye from them!
Hope this helps!