SPRAYING UPDATES

SPRAYING UPDATES

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**

Urban Aerial Spraying

No urban aerial spraying is scheduled at this time.

Ground Spraying

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 Morning August 6th between 4:00am - 8:00am

Click to view an interactive map

Areas highlighted on the map are scheduled for treatment
Monday Evening August 4th between 8:00pm and 12:00am

Click to view an interactive map


WhenAreaActivityFactorCompleted/
Cancelled
ZipProduct Used
8/6/2025
2am-6am
Garcia Bend Park, Charter Pointe Park, Shore Park at Riverlake, Reginald Renfree Park, Portuguese Park, Sojourner Truth ParkULVHigh Leg Counts95831DeltaGard
8/4/2025
8pm-12am
North Winters RiceULVAbundanceCompleted95695, 95616, 95694DeltaGard
8/4/2025
8pm-12am
Areas of Twitchell Island and Brannan IslandULVHigh Leg CountsCompleted94571, 95641DeltaGard
8/4/2025
8pm-12am
American River Bike Trail / Jedediah Smith Memorial Trail: Watt Ave to Hazel AveULVWest Nile Positive PoolCompleted95864, 95826, 95608, 95827, 95670DeltaGard
8/4/2025
8pm-12am
Ag Area West of DavisULVAbundanceCompleted95616DeltaGard
8/4/2025
8pm-12am
Ag Area North & East of DavisULVAbundanceCompleted95776, 95616, 95618DeltaGard

Routine Aerial Spraying to Agricultural Areas

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.

Areas highlighted on the map are scheduled for treatment
Tuesday Evening August 5th between 8:00pm and 12:00am

Click to view an interactive map

Areas highlighted on the map are scheduled for treatment
Monday Evening August 4th between 8:00pm and 12:00am

Click to view an interactive map


WhenAreaActivityFactorCompleted/
Cancelled
ZipProduct Used
8/5/2025
8pm-12am
AGRICULTURAL AREAS LOCATED SOUTH OF I80AERIAL ULVHIGH TRAP COUNTS95618Dibrom
8/4/2025
8pm-12am
AGRICULTURAL AREAS LOCATED NORTH OF DAVIS, SOUTH OF WOODLANDAERIAL ULVHIGH TRAP COUNTSCompleted95695, 95776Dibrom
8/3/2025
8pm-12am
AGRICULTURAL AREAS LOCATED NORTH OF NATOMASAERIAL ULVHIGH TRAP COUNTSCompleted95837, 95836, 95626, 95835,95673Evergreen 5-25
8/2/2025
8pm-12am
AGRICULTURAL AREAS LOCATED NORTH EAST OF WINTERSAERIAL ULVHIGH TRAP COUNTSCompleted95695, 95694Evergreen 5-25

WHAT WE USE

–>