Knoxville News Sentinel 5/20/2013
Excerpt: “COSBY, Tenn. — At the eastern end of the Great Smoky Mountains National Park, not far from Cosby, Tenn., are three 25-foot-tall hemlock trees enveloped in nylon that appear out of nowhere like circus tents in the middle of the forest.
They’re called canopy cages. Six years ago the University of Tennessee and the U.S. Forest Service tested them at Blackberry Farm in Blount County, and now they’re being employed in the Smokies to help control the hemlock woolly adelgid, a tiny, nonnative insect pest that has been killing the park’s hemlocks for more than a decade. ….”
Read entire article at http://www.knoxnews.com/news/2013/may/20/smokies-add-2-new-beetles-canopy-cages-in-fight/?partner=RSS