Neighbor's Tree of Heaven
My neighbor has two tree of heaven saplings and they are attracting lanternflies that come and eat our willow. I want to remove these saplings to protect our willow but directly handling the trees ourselves is not an option. I read that you can drill holes in the trunk and pour herbicide in them. We are close enough where we would be able to do this on our property.
Hypothetically - would it be wise to do that if I then cannot remove the tree itself? Would it be better to leave the saplings alone so they do not create more saplings, or should we go ahead with pouring poison in the trunk?