Spread by trade and climate, bugs butcher America's forests
Wednesday, December 7, 2016 - 02:41
in Paleontology & Archaeology
In a towering forest of centuries-old eastern hemlocks, it's easy to miss one of the tree's nemeses. No larger than a speck of pepper, the Hemlock woolly adelgid spends its life on the underside of needles sucking sap, eventually killing the tree.