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-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 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.

Sign up for spray notifications to receive emails when spraying is scheduled in your zip code.

**Any scheduled treatment may be postponed, cancelled or rescheduled due to unfavorable weather conditions and/or other reasons**

No urban aerial spraying is scheduled at this time.

As a response to increased WNV or elevated mosquito activity, the District may conduct localized ground treatments with trucks or backpacks throughout neighborhoods, parks, creeks and other open areas. Scheduled and recent ground treatments are listed below.

Click here for a list of all ground treatments to date this year.

Areas highlighted on the map are scheduled for treatment
Wednesday Night September 30th between 7:00pm and 11:00pm

Click to view an interactive map

Blue Boxes contain areas too small to show in detail. Click map to open and zoom in.

Areas highlighted on the map are scheduled for treatment
Thursday Morning October 1st between 2:00am and 6:00am

Click to view an interactive map

Blue Boxes contain areas too small to show in detail. Click map to open and zoom in.

Areas highlighted on the map are scheduled for treatment
Wednesday Morning September 30th between 2:00am and 6:00am

Click to view an interactive map

Blue Boxes contain areas too small to show in detail. Click map to open and zoom in.

The District conducts routine aerial applications to a variety of agricultural sources that may be producing mosquitoes. Agricultural areas that may be treated include areas such as rice fields and pastures.

IMPORTANT NOTE: At times when agricultural treatments are being conducted close to residential areas, the plane may fly directly above homes. Material is not being deposited below, rather it is targeting a specific location. For additional information relating to this topic, see our Spraying Frequently Asked Questions page. Typical agricultural aerial spraying times are between 7:00pm and midnight. Scheduled and recent agricultural aerial treatments are listed below.

Click here for a list of all agricultural aerial treatments to date this year.

No agricultural aerial treatments are currently scheduled.

Below you will find links to the labels for products we use:

EVERGREEN ULV 5-25 Air
DIBROM CONCENTRATE
MERUS 3.0
DELTAGARD
VectoBac WDG