I used this spray on two nests where I could only acces the small entrance hole in a soffitt so could not spray the actual nest which meant multiple attempts before noticable results. I like the long range aspect, spraying from 3 metres away and found it best around midnight when I could just spray and run. .
It has taken five nights and the ground is now covered in dead wasps with only a few left. Once more into the breech for victory!