Kill A Regrowing Root

Question

I have a tree/weed that I cut down 3 times and it regrows bigger each time. I grows from under the garage and will eventually damage the floor and wall. I can cut it down again but need to kill the root to stop it from coming back. Currently it is abot 10-12 inches around.

Answer 1

Paint the fresh cut with undiluted Round-Up. The fresh cut will cause the plant to pull the Round-Up into its system and will kill it. You may need to repeat 2-3 times if the roots grow deep, but it will work.