Roots of the same species often grow together when they touch. This means that an herbicide applied to one beech tree might spread through the roots and end up killing more beech trees in the same area.This is especially likely with species that can form "clonal colonies," including aspens and black locust.
 Herbicides that contain glyphosate or triclopyr amine are effective at killing trees and available at garden stores.Your species may respond to one of these more than the other. For example, glyphosate may do a better job controlling Russian olive, while triclopyr is the better choice for locust, maple, oak, and willow.Triclopyr amine should work at concentrations of 8.8%.For glyphosate, try to find a concentration of about 40%, then dilute with an equal amount of water. If that isn't available, apply undiluted product with at least 20% concentration.Herbicides containing 2,4-D, dicamba, or picloram are risky, as they may spread to nearby vegetation and kill it as well. This shouldn't happen with careful application of glyphosate or triclopyr., Follow the herbicide label instructions to prevent dangerous exposure to the chemicals. At minimum, wear long sleeves and pants, closed-toe shoes, latex or nitrile gloves, and safety goggles.Choose clothes you don't mind ruining.


You do not need to wear a mask, since you will not be spraying herbicide into the air., This treatment should prevent all or most of the roots from spreading and growing new suckers after a tree is cut down. It does require a fresh cut surface, but as long as the tree was cut less than a few weeks ago, you can create a new one:








Cut the stump close to the ground. Keep it as level as possible, so herbicide doesn't run off into the ground. Clear away sawdust.
Using an old paintbrush, apply herbicide just inside the bark ring. This is where the living tissue is that will carry the herbicide to the roots.
Dispose of the paintbrush and empty herbicide containers at a hazardous waste center.
Know the risks.
Select an herbicide.
Wear safety equipment.
Apply herbicide to a stump.
{"src": "wikihow-all_validation", "title": "How to Kill Tree Roots4"}