LANGLEY AIR FORCE BASE, Va. -- Brian Redding, a subcontracted pilot, flies a Bell OH 58B helicopter Oct. 2. The helicopter is outfitted with an aerial spray rig in order to spray and kill phragmites. Phragmites are a weed commonly found in marshes that grow fast and can overcome other plants in the area. (U.S. Air Force Photo/Airman 1st Class Jonathan Koob)