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
Thursday Morning September 18th 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
Monday Evening September 15th 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.


WhenAreaActivityFactorCompleted/
Cancelled
ZipProduct Used
9/18/2025
2am-6am
Northgate Area - EB 80 south to Garden HWY, Ninos Pkwy east to E Levee RdTruck LVInvasive SpeciesCompleted95834, 95833Vectobac WDG
9/15/2025
7pm-11pm
West Yolo Rice I505 south to Rd 95 and Rd 27 North to Rd 24ULVHigh Trap CountsCompleted95694, 95695DeltaGard
9/15/2025
7pm-11pm
Town of MadisonULVWest Nile Positive PoolCompleted95653DeltaGard
9/15/2025
7pm-11pm
North of Winters RiceULVAbundanceCancelled95695, 95616, 95694DeltaGard
9/15/2025
7pm-11pm
Norma Hamlin Park, Pecan Park, Almond Park, and Phoenix ParkULVWest Nile Positive PoolCompleted95662, 95628DeltaGard
9/15/2025
7pm-11pm
Hwy 160 East to Bruceville Rd, Hood Franklin Rd South to Lambert RdULVWest Nile Positive PoolCompleted95757, 95758, 95615, 95639DeltaGard
9/15/2025
7pm-11pm
El Macero RiceULVWNV+ PoolCompleted95618DeltaGard
9/15/2025
7pm-11pm
Dillard Rd and Walmort Rd East to the Folsom South Canal, Dillard Rd and Colony Rd South to Woods RdULVWest Nile Positive PoolCompleted95693DeltaGard
9/15/2025
7pm-11pm
Areas of Twitchell Island and Brannan IslandULVHigh Trap CountsCompleted94571, 95641DeltaGard
9/15/2025
7pm-11pm
Anatolia Bike TrailULVWest Nile Positive PoolCompleted95742DeltaGard
9/15/2025
7pm-11pm
American River Bike Trail / Jedediah Smith Memorial Trail: Watt Ave to Hazel AveULVWest Nile Positive PoolCompleted95864, 95826, 95608, 95827, 95670DeltaGard
9/15/2025
7pm-11pm
Ag area Northeast DavisULVWNV+ PoolCompleted95776, 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.


WhenAreaActivityFactorCompleted/
Cancelled
ZipProduct Used
9/16/2025
7pm-11pm
AGRICULTURAL AREAS LOCATED NORTH OF NATOMASAERIAL ULVHIGH TRAP COUNTS95837, 95836, 95626, 95835,95673Evergreen 5-25
9/14/2025
7pm-11pm
AGRICULTURAL AREAS LOCATED NORTH OF NATOMASAERIAL ULVHIGH TRAP COUNTSCompleted95837, 95836, 95626, 95835,95673Evergreen 5-25
9/14/2025
7pm-11pm
AGRICULTURAL AREAS LOCATED NORTH OF DAVIS, SOUTH OF WOODLANDAERIAL ULVWNV POSITIVE SAMPLECompleted95695, 95776Evergreen 5-25

WHAT WE USE

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