Mosquito abatement begins this morning in Washoe County with the goal of preventing the spread West Nile virus. Washoe County Health District’s Vector Borne Disease Program will start larviciding applications in the North Valleys and Spanish Springs areas, and will end in South Washoe County. A total of 1,000 acres will be covered. The mosquito control products used are environmentally friendly and only target mosquito larvae in the water to inhibit their ability to become biting adults, and there is no adverse effects to animals or humans. Specific areas to be targeted are the North Valleys, Swan Lake, Double Diamond/Damonte area and Washoe Lake.