Many bloodsucking insects, such as mosquitoes, are known as “vectors”. A vector is defined as a living organism that can transmit diseases between humans or from other animals to humans. To control them, JCVCD uses integrated mosquito management (IMM). IMM utilizes a combination of methods to prevent and control both nuisance and disease-transmitting mosquito species. Following an IMM approach, JCVCD plans mosquito control activities based on an understanding of mosquito biology, life cycle, and the way mosquitoes spread viruses. There is a tremendous amount of peer-reviewed scientific literature demonstrating that the methods used in IMM are safe, environmentally sound, and effective at reducing mosquito populations. Larval and adult surveillance are the backbone of IMM along with source reduction, control of all mosquito life stages, insecticide resistance testing, public education, and evaluation of actions taken.