About 20 years ago, I wrote a mobile app for a company that surveys power lines all over the rural South and cuts away trees and vegetation that threatens the lines. In most places, the landowners are compensated for any trees that have to be cut down, with a variable scale that pays more the rarer the tree is. This has created a cottage industry where landowners plant all sorts of exotic shit directly under the power lines as a guaranteed cash crop. It's certainly an under-appreciated source of invasive species.