PARRIS ISLAND S.C. — Air Force Reserve Major Mark Breidenbaugh, an entomologist with the 757th Airlift Squadron based at Youngstown Air Reserve Station(YARS), Ohio, examines an ABC Trap used to gauge the effectiveness of a new environmentally friendly product being used at the Marine Corps Recruit Depot here, October 6. YARS is home to the only large area fixed-wing aerial spray unit in the Department of Defense. One of their annual missions is to spray biting midges at the depot to provide relief to the Marines. Air Force Photo/Tech. Sgt. Dennis J. Kilker Jr.