Poplar Tree Roots

Question

How do you kill the roots of a poplar tree that was cut down about a month ago in which the stump is still there? The roots are growing fine and sending up shoots.

Answer 1

Cut into the roots and 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.

Perhaps this article may be of some help: https://www.gardeningknowhow.com/ornamental/trees/tgen/how-to-kill-a-tree-killing-trees-in-your-garden.htm