So we spent 10K last year putting up a beautiful fence around the yard.
At the back of the yard, there's a gap of about 2-3 inches between our fence and our neighbors. There's a tree which started to grow in that space, being that both fences are fixed and permanent, is there any way to "kill" that tree from on top, like pouring some tree poison (if there is such a thing). I'm scared the tree is gonna get fatter at the bottom, and damage both fences.