will roundup kill sticker bushes
Herbicides. A faster way to get rid of thorn bushes is by using herbicides like glyphosate, which is also called Roundup, and triclopyr, known as Brush-Be-Gone, are two of the most popular ones used to kill thorn bushes.ut and slash. The only way to trim thorn bushes is to completely cut them off â roots, stems and everything else! Carefully reach under the stump of the bush and cut off each small root that meets the stem of the bus. Once the roots have been cut completely, boiling water must be poured over the area.