Yes the city has a mosquito spraying policy. Following the City mosquito control policy based on scientific surveillance approach, only areas that test positive for West Nile Virus in mosquito traps are sprayed. It is important to consider spraying exclusively based on complaints may lead to pesticide resistance in mosquitoes, hence making spraying ineffective. Therefore, the need for spray is less driven by complaints and more based on the scientific surveillance results. However, high mosquito activity in some areas could be due to any standing water source, such as tires, any container or ornamental pots with water or bird baths, swimming pools with stagnant water, etcetera.