Killing a Stump
I just finished watching a USU extension YouTube video about killing stumps (http://www.youtube.com/watch?v=O-gP8ZvQ6XU) and the presenter mentioned three chemicals to mix together (RoundUp, liquid surfactant, and liquid ammonium sulfate). I know where to find the RoundUp, but I can't seem to find somewhere that carries the liquid surfactant and liquid ammonium sulfate. Where can I find these products in the Salt Lake County area?
Salt Lake County Utah urban forestry
Just mix Roundup (glyphosate) as directed on the label (or buy premixed) and add a few drops of dish soap. That can act as a surfactant. Better though is to buy Ortho Poison Ivy Killer, which has glyphosate, but also has triclopyr, which is more effective. It also is important to apply it to the cut surface of the stump right after it is cut. You need living tissue to carry it down into the roots.