Maricopa County Environmental Services conducts year‐round surveillance and abatement of mosquitoes. Our Vector Control Division deploys routine mosquito traps every week and additional complaint driven traps to collect mosquitoes. Culex mosquitoes are tested for West Nile and St. Louis encephalitis viruses and Aedes aegypti mosquitoes are tested for Chikungunya, Dengue and Zika viruses.
The Vector Control Division also investigates feral bees, fly, and roof rat complaints,
Through the years Maricopa County Environmental Services Department has developed and implemented a surveillance program where we monitor hundreds of routine sites - areas that have been identified as problem areas or mosquito-breeding sites. We deploy over 800 mosquito traps to these areas every week.
Mosquitoes have a serious impact on the health, comfort, and economic welfare of people. Some species transmit diseases to man and animals. In Maricopa County, there is particular concern with mosquito-borne encephalitis (sleeping sickness). Large numbers of mosquitoes interfere with outdoor work and recreation, cause livestock to lose weight, and lower property values.
Everyone is responsible for eliminating and preventing mosquito breeding on their property.
The Vector Control Division investigates all feral bee complaints. We investigate to determine the responsible party, so they can remove the feral hive if needed.
If you encounter a swarm or colony on your property, you should call your local pest control company to remove the bees. The Maricopa County Environmental Services Department is not an Emergency Responder.
The Vector Control Division investigates all fly complaints. We investigate to determine the responsible party, so they can address the problem as needed.
Roof Rat Complaints
The Vector Control Division investigates all roof rat complaints. We investigate to determine the responsible party, so they can address the problem as needed. The Department does not provide bait stations or traps to the public.