Ed from Deer Park, Wa. writes
The trees are down but the roots still are shooting up sprouts. Need to kill the roots. The trees were poplar and the roots are growing under my asphalt driveway.
Yes. The Bonide Stump Out Stump & Vine Killer will kill the stump and the roots. You want to cut the suckers sprouts off, and make hatchet marks deep enought to hit the cambium cell layer of the tree. This layer is the growing part of the tree, and it will absorb the chemical to kill down to the roots.
Answer last updated on: 05/17/2016