The Tree Care Blog. Tips, resources, and advice to help your trees survive and ... The Top Signs You Might Need Emergency Tree Removal.

Pine Beetles . Obvious signs of infestation include white pitch tubes, running pitch, sawdust at the base of the tree, and many small emergence holes in the bark. Larvae chew curved or S-shaped galleries under the bark in the inner bark and cambium layer, and can girdle and kill the tree.