adulticiding
n.— «The Memphis and Shelby County Health Department will begin spraying for mosquitoes June 22. The practice, known as adulticiding, is designed to prevent potential outbreaks of the west nile virus.» —“Mosquito Spraying Begins in Shelby County” by Richard Holden WREG-TV (Memphis, Tennessee) June 22, 2009. (source: Double-Tongued Dictionary)