Hemlock grows from Main to North Carolina throughout the Appalachian mountains. Hemlock has been used for many years for barns, fencing, and all kinds of out buildings. It is a minor species so it is not as well known as pine. Hemlock lumber is known for its ability to resist rot and infestation from insects. Unfortunately, Hemlocks trees are dying in the forest from an insect called the Wolly Adelged. The insect eats the needles of the Hemlocks starving the tree of the nutrients needed to survive.