I don't know where your located, but Id suggest NOT doing flames or anything like that. It's crazy dry and it doesn't take much to burn anything down. Around here its a class A infraction for so much as getting caught throwing a cigarette out the window.
Id stay with wasp spray, they make it that shoots like 20' or so. Hardware should have it.
But if your lucky and aren't taking part in this severe drought, carry on.
do it at night time, spray wasp and hornet killer spray or whatever at the nest then knock it down