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 risk to our community. If 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 mosquitoes developing in the water.
The District strives to keep the public updated and informed on all mosquito control treatments to protect public health and welfare from diseases such as West Nile virus among others. Residents are encouraged to sign up to receive email notifications for urban, agricultural or ground treatments occurring in their zip code.
**Any scheduled treatment may be postponed, cancelled or rescheduled due to unfavorable weather conditions and/or other reasons**
View an interactive map of the agricultural areas subject to aerial treatments.
View an interactive map of the areas subject to ground treatments.
Labels for products used (PDF):
The District will make every attempt to notify individuals who sign-up for our spray notification list via e-mail. The District 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:
Aerial treatment performed on July 16-17, 2014
Aerial treatment performed on June 30-July 1, 2014
Aerial treatment performed on August 23-24, 2012
Aerial treatment performed on August 14-15, 2012
Aerial treatment performed on July 1-2, 2012
Aerial treatment performed on June 11-12, 2012
Aerial treatment performed on August 23-24, 2011.
Aerial treatment performed on July 27-29, 2010.
Aerial treatment performed on July 13-14, 2010.
Archive of all ground ULV applications for 2012.
Archive of all ground ULV applications for 2011.
Archive of all ground ULV applications for 2010.
Archive of all ground ULV applications for 2009.
Archive of all ground ULV applications for 2008.
Archive of all ground ULV applications for 2007.