![Hemlock Woolly Adelgids suck up the cells from the needles and prevent the tree from transferring water and conducting photosynthesis. The first obvious sign of an infestation is thinning foliage; the needles fall off and the crown starts thinning out. From a distance, trees look gray.](https://secure.caes.uga.edu/news/multimedia/images/361/Hemlock-Woolly-Adelgidlrz.jpg)
Hemlock Woolly Adelgid
Thousands of broken trees line the banks of the Chattooga River. The dead, gray stabs were once evergreen monsters offering shade to trout and picturesque views to visitors. These Eastern hemlocks are native to north Georgia, but they are dying rapidly.