Mike from Kansas City, Mo writes,
Is it effective against mature dormant trees? Someone online said to make a slit in the bark and paint it on. Is it dependent upon girdling the tree?
In order to kill a tree of any kind, you will first need to cut the tree first. Once that is done, you will use undiluted Bayer Advanced Brush Killer Plus Concentrate on the stump. This will be applied with a paintbrush. Discard the paintbrush once complete with this project.
Answer last updated on: 11/21/2014