Close to the base of the target tree, display hammer on a copper nail at a slightly downward angle. There is no rule, so the size of the time to select copper nails, but in general, the more nail surface regards to the length and width, the more effective the treatment will be. Additionally, a longer nail means deeper penetration, resulting in a greater chance that the tree is sick. Next hammering nails into a ring around the tree, about half an inch away. This increases in the tree from a higher number of damaged growth cells and the concentration of copper. This higher concentration is better, because this increases the possibility of oxidation of the metal, which poisons the tree. The idea that a copper nail will kill a tree, applies only to very small trees such as seedlings. Larger trees can tolerate a single nail without problems and is easy to grow over the nail over time without harmful effects. Optionally cover the nail heads with mud? The purpose of mud covered copper nails is to hide nails. Copper has a tendency to show clearly to the root of trees for its bright color. Covering nails makes the process less obvious with a casual look and can preserve the appearance of a halo, as the tree begins to die. With mud to cover them, but it does not completely hide the fact that something has been made for the tree. After the tree is dead, remove the nails, before removing the tree. Otherwise, the nails may fly and hurt someone, or they may damage the machines that are used to remove the tree, there are many nails.