The most effective way to make sure small trees don't come back is to dig up the stump and roots and discard them. You can also grind the stump or use herbicides to kill the stumps to avoid the possibility of it growing in the future. Another option is to remove new shoots as soon as they appear on the stump. Growth inhibitor sprays containing the chemical NAA can prevent tree roots from growing back after they are cut.
Most of these products are available in spray bottles, ready to use for easy application. To control saplings at the base of a tree's rhizome, spray a thin layer over the trunk from the base to the first set of branches. In the case of saplings that grow farther from the trunk along the extended roots, you must remove the soil from the top of the cut root so that you can spray the inhibitor directly on the cut. Make sure to read and follow all instructions on the inhibitor bottle before using it.
When applying these chemicals, it is important to wear gloves and eye protection as they can cause skin irritation. You can also prevent tree roots from growing back in an area without removing the entire tree. To do this, cut the roots and remove the ends that have been cut. Then, dig a trench and install a root barrier.
This will stop the roots from re-invading the soil from which they were extracted and will cause them to grow in a new direction. If cutting the roots would put the tree at risk, you'll have to remove everything or live with the invasive roots. It's also a good idea to remove stumps from dead trees, as they can attract insects, rot, and fungi to your garden. Knowing when you can remove tree roots without killing the tree is essential.
Contrary to popular belief, tree roots are rarely found at great depths, except for taproots that extend directly underneath the tree. The unwanted roots of trees and plants can generate new shoots, even after you have cut the root or eliminated growth from the upper part. By killing and removing the tree's stump, you're preventing sprouts from growing and creating a danger to surrounding structures and people. To prevent further root infiltration and regrowth, be sure to kill tree roots after felling the tree.
Before selecting a method to kill or remove a tree stump, evaluate possible impacts on the environment and the immediate environment. Therefore, it's important to follow proper tree removal measures, especially if you're felling a tree near your home. If you're not familiar with tools needed for this job, hire a local tree removal service to cut down the tree and take it away. If your tree is growing invasive roots below pavement or near foundation, you may be able to remove some of the roots without killing the entire tree.
The good news is that you have several options for killing tree roots yourself (or even the entire tree, depending on severity of problem). You can also call a professional tree service: Take all the stress, equipment, time and chemicals out of the process by calling a professional tree service to remove the tree stump. If these shoots don't diminish, they will grow into trees without having developed a stable root plate and are likely to pose a much greater danger of falling than the original tree.