Below you will find adult mosquito treatments currently scheduled. More information and treatment archives are near the bottom of this page. Treatments are subject to change due to weather conditions. Typical AM times are 5:00am to 8:00am and PM times are 8:00pm to midnight. The following information is updated hourly from 7am to 3:30pm Monday through Friday.
Aerial Spraying over Residential Areas
Aerial Spraying over Agricultural Areas
View a map of the agricultural areas subject to aerial treatments.
The Sacramento-Yolo Mosquito and Vector Control District’s primary goal is to protect public health and welfare by managing mosquito populations so they do not present a significant risk to our community. In the event that mosquito populations pose a significant public nuisance or when emergency control measures are needed to rapidly disrupt or terminate the transmission of disease to humans, the District will respond by continuing to implement its Mosquito and Mosquito-borne Disease Management Plan.
As part of this plan, the District may administer Ultra Low Volume (ULV) treatments by using backpack foggers, hand sprayers, truck-mounted foggers or aircraft, in and around areas where virus activity has been detected. Each fogging unit’s output is calibrated to ensure the correct amount of product is applied for each treatment area. All products are registered with the California Environmental Protection Agency (EPA) and are applied by trained and state-certified technicians. Adulticides are chemicals that quickly reduce adult mosquito populations. Larvicides target immature mosquitoes.
Labels for products used (PDF):
The Sacramento-Yolo Mosquito and Vector Control District (SYMVCD) will make every attempt to notify individuals who sign-up for the District’s notification list via e-mail. However, the District may not be able to notify the public if immediate applications are needed to protect public health and welfare from diseases such as West Nile virus, Western Equine Encephalomyelitis, St. Louis Encephalitis or malaria. The SYMVCD may also cancel a scheduled operation due to weather and/or other reasons.
For additional product information, please contact the District at 1-800-429-1022 from 7:00 a.m. to 3:30 p.m. Monday – Friday.
Historical information for previous aerial treatments over residential areas:
Historical information for previous ground treatments: