Latest Mosquito Testing Results
The Connecticut Agricultural Experiment Station traps, identifies, and tests mosquitoes for encephalitis viruses.
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DEEP Mosquito Management Program to Spray for Mosquitoes in Mt. Misery Area of Pachaug State Forest
The CT DEEP Mosquito Management Program will conduct insecticide spraying on the evening of Thursday, August 29, at Pachaug State Forest.
State Reports First Positive Mosquitoes for EEE Virus in Canterbury, CT
The State of Connecticut Mosquito Management Program announced that mosquitoes trapped in Canterbury on July 16 tested positive for eastern equine encephalitis (EEE) virus.
State Reports Positive Mosquitoes for West Nile Virus in New Haven
The State of Connecticut Mosquito Management Program announced that mosquitoes trapped in New Haven on June 17, 2024, tested positive for West Nile virus.
Connecticut Confirms First Case of Eastern Equine Encephalitis for 2024 in Horse
The Connecticut Department of Agriculture reports the state’s first case this year of EEE in a 23-year-old unvaccinated gelded horse from Fairfield County.
State Mosquito Monitoring Program Begins Testing for Mosquito-Borne Viral Diseases
The 2024 mosquito trapping and testing program, coordinated by The Connecticut Agricultural Experiment Station (CAES) will run from June 3 until the end of October.
State Reports Positive Mosquitoes for West Nile Virus in Four Connecticut Towns
First WNV-Positive Mosquito Pools of Season
West Nile Virus Expanding Throughout Connecticut
Positive Mosquitoes Found in 17 Towns
State Mosquito Monitoring Program Begins Testing for Mosquito-Borne Viral Diseases
The mosquito trapping and testing program, coordinated by The Connecticut Agricultural Experiment Station (CAES) will run from May 31 until the end of October.
Risk of West Nile Virus Continues
Positive Mosquitoes Detected in 23 Connecticut Towns
Continued Risk of West Nile Virus
The State Mosquito Management Program is warning Connecticut residents about the risk of infection by West Nile virus this season.
Risk remains elevated as The Connecticut Agricultural Experiment Station (CAES) detects the virus within mosquito pools in 34 towns this season.
State Reports Expansion of West Nile Virus
The State Mosquito Management Program is warning Connecticut residents about the increasing risk of infection by West Nile virus this season.
Mosquito Season Alert-CT Horse and Livestock Owners Advised to Guard Against Mosquito-Borne Diseases
The Connecticut Department of Agriculture reminds the state’s horse and livestock community to take preventative measures to protect against mosquito-borne diseases this season.
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 2, 2025, and lasts until the end of October.
State Reports Positive Mosquitoes for Eastern Equine Encephalitis Virus in Voluntown
The State of Connecticut Mosquito Management Program announced today that mosquitoes trapped in the Pachaug State Forest in Voluntown on July 31 have tested positive for Eastern Equine Encephalitis virus (EEE).
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.