Aerial herbicide spraying will occur at Joint Base Langley-Eustis, Va., Aug. 15-17, 2017. This operation will remove the invasive plant, Phragmites australis, which impedes and degrades the biodiversity of marsh areas around the installation and provides cover for wildlife that may come in contact with air operations. (U.S. Air Force photo/ Tech. Sgt. Natasha Stannard)