The newest and easiest way to protect trees. Brass Tree Air Terminal. Simply insert cable and secure with a cable clip holder at the base of the cable. Preferred by most arborists. Generally only 3 are needed per tree. One top middle as high as you can reach and then one on either side roughly 2/3 of the way down the tree and as far opposite as possible. Not available in aluminum. Aluminum can not be used for trees.
Click here to learn how to protect your trees and the parts needed to accomplish this.