Occurrence, fate, and transport of aerially applied herbicides to control invasive buffelgrass within Saguaro National Park Rincon Mountain District, Arizona, 2015–18 - Paretti, Nicholas; Beisner, Kimberly; Gungle, Bruce; Meyer, Michael; Kunz, Bethany; Hermosillo, Edyth; Cederberg, Jay; Mayo, Justine (Scientific Investigations Report, 2021)