January 7, 2016 Insect Showdown in Shenandoah National Park Insect Showdown in Shenandoah National Park The trees in Shenandoah National Park are under attack from a destructive invasive insect called the hemlock wooly adelgid. The HWA has killed 95 percent of the park’s eastern hemlock trees. HWA appear as… Tags: General Uncategorized Read More