Hi pete I've done about 20 wasp nests over
The years with ant powder only been stung once
Lucky I guess the idea was to give them a good quick blast of
Powder in and around the hole & retreat quick always done the trick
For me And no more wasps mick
Hi make sure u puff it in and around the the hole they use
So as they go in. They take it in with them then leave it a couple of days
It should do the trick if u still see them after a couple of days do it again
Just to Finnish off any stragglers
Mick