What criteria are used when deciding where to spray?
Spraying for larval mosquitoes occurs only when problem species of mosquito larvae have been detected in large numbers. This involves constant monitoring of mosquitoes in larval populations, which will soon advance to the adult stage where they become problems for humans. Spraying for adult mosquitoes occurs only after the targeted species of mosquitoes have reached a point where they have become a problem as documented by trap counts or citizen requests for spraying. In order to spray for mosquitoes, certain types of mosquitoes must be found in significant numbers.
