What is Calaveras County Doing?
Weekly trapping and monitoring of mosquito populations and West Nile virus will be performed during the mosquito breeding season county wide, which typically lasts until December. Calaveras County will be conducting basic larvicide and adulticide control operations as conditions warrant. The majority of the larval chemical products to be used in the control program include various forms of Bs, Bti, and an occasional application of methoprene. The methoprene is applied as a briquette or pellet, and only kills mosquito larvae. Adulticides will be applied using a truck mounted fogging machine, and will be used only in areas with either high mosquito trap numbers and or where positive West Nile mosquitoes have been found. Efforts will be concentrated on finding and eliminating the breeding sources. Every effort will be made to contact residences in affected areas prior to early morning or late evening fogging. 3. Will Calaveras County be spraying my property? Yes! Only areas with high mosq
