Airman First Class Perry Neang, 374th Civil Engineer Squadron Pest Management apprentice, checks a storm drain for standing water at Yokota Air Base, Japan. When standing water is discovered, a chemical treatment is performed to break the normal life cycle of the mosquitoes. The chemical insect growth regulator stops the development of a mosquito from the larva to adult stage and is one of the most effective forms of mosquito control. To control and prevent the spread of mosquitoes, there are several easy steps everyone should follow; remove, repair, or empty everything that could breed mosquitoes. Residents should also repair door and window screens to keep out mosquitoes. To prevent the influx of mosquito's the base self-help store provides base residents insecticides specifically labeled for controlling adult mosquitoes. (U.S. Air Force photo/Airman First Class DevinDoskey)