Latest Mosquito Testing Results
The Connecticut Agricultural Experiment Station traps, identifies, and tests mosquitoes for encephalitis viruses.
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Where environmentally feasible, the Wetland Habitat and Mosquito Management Program uses water management for source reduction and biological control of mosquitoes.
Dead birds, primarily crows, are tested to monitor West Nile virus.
Learn about the ecology of mosquitoes, including their life cycle and habitats.
Frequently asked questions about how to avoid West Nile virus.
Frequently asked questions about mosquitoes.
Mosquito Control Using Larvicides - FAQs
Frequently asked questions about controlling mosquitoes using larvicides.
Frequently asked questions about West Nile virus.
State Mosquito Monitoring Program Begins Testing for Mosquito-Borne Viral Diseases
The mosquito trapping and testing program, coordinated by the Connecticut Agricultural Experiment Station, begins June 1, 2026, and lasts until the end of October.
Mosquito Monitoring and Surveillance
Accurate monitoring and sampling of mosquito population levels are essential to providing timely and effective management of mosquito outbreaks.
Risk of Mosquito-Borne Diseases Continues
Eastern Equine Encephalitis Positive Mosquitoes Found in 6 Connecticut Towns and West Nile Virus Detected in 33 Connecticut Towns
Risk of West Nile Virus Continues - Third Human Case Identified in the State
Virus-positive mosquitoes continue to be detected in Connecticut towns
The Wetland Habitat and Mosquito Management (WHAMM) Program of the DEEP's Wildlife Division uses an integrated approach to manage mosquitoes that includes larval (immature) and adult mosquito population monitoring, public education, and cultural, biological, and chemical control methods.
Links to webpages for frequently asked questions about mosquitoes, mosquito control and protection, West Nile virus, and eastern equine encephalitis.
View videos on precautions and protections related to mosquitoes.
Latest Mosquito Testing Results
The Connecticut Agricultural Experiment Station traps, identifies, and tests mosquitoes for encephalitis viruses.
Human Surveillance of West Nile Virus
Surveillance includes monitoring mosquitoes, domestic animals, poultry, and humans. The Connecticut Department of Public Health provides laboratory testing of cerebrospinal fluid and blood from persons hospitalized with illnesses consistent with WNV infection.
Mosquito Control Around the Home
The best way to manage mosquitoes around the home is to eliminate standing water where mosquitoes can lay eggs. DEEP’s Wetland Habitat and Mosquito Management Program uses an integrated approach to manage mosquitoes that includes public education and cultural, biological, and chemical control methods.