We have a wasp nest in a very awkward position. It is in the side top of the roof above the porch. I have attached some images showing where the nest is.
There is a window next to the nest but not very close, it would be a struggle to get some powder down the hole.
What would be the best substance to use to kill the wasps (e.g. powder, spray) and what is the best way to access it, walking onto the roof would not be ideal.
Thank you!