Airman 1st Class Melissa Waszkiewicz, 28th Civil Engineer Squadron pest management technician, throws weeds into a boat at Gateway Lake at Ellsworth Air Force Base, S.D., June 24, 2015. The pest management flight’s mission prevents pests and diseases from adversely affecting military operations in peacetime and during contingency operations. (U.S. Air Force Photo by Airman Sadie Colbert/Released)