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 27th between 2:00am and 6:00am

Click to view an interactive map

Areas highlighted on the map are scheduled for treatment
Tuesday Morning August 26th between 2:00am and 6:00am

Click to view an interactive map


WhenAreaActivityFactorCompleted/
Cancelled
ZipProduct Used
8/27/2025
2am-6am
Rosemont Folsom Blvd East to Bradshaw, HW50 South to Jackson RdTruck LVInvasive Species95826, 95827Vectobac WDG
8/26/2025
2am-6am
City of Winters - Wolfskill St North to Moody Slough Rd; Suffolk Pl East to Wild Rose LnULVInvasive SpeciesCompleted95694Fyfanon EW
8/26/2025
2am-6am
City of Winters - Wolfskill St North to Moody Slough Rd; Suffolk Pl East to Wild Rose LnTruck LVInvasive SpeciesCompleted95694Vectobac WDG
8/25/2025
8pm-12am
West Davis Pond, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Southeast Woodland Buffer.ULVHigh Trap CountsCompleted95695, 95776DeltaGard
8/25/2025
8pm-12am
South Sherman IslandULVWest Nile Positive PoolCompleted94571DeltaGard
8/25/2025
8pm-12am
Senda Nueva Greenbelt, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Robert Arneson Park, DavisULVAbundanceCompleted95618DeltaGard
8/25/2025
8pm-12am
Pioneer Park, DavisULVAbundanceCompleted95618DeltaGard
8/25/2025
8pm-12am
Northstar Park, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Lake Canyon Park, Galt Community Park, Emerald Vista Park, Canyon Creek Park and adjoining green beltULVWest Nile Positive PoolCompleted95632DeltaGard
8/25/2025
8pm-12am
I-5 East to HWY 99, Hood Franklin Rd South to Lambert RdULVWest Nile Positive PoolCompleted95757DeltaGard
8/25/2025
8pm-12am
Hansen Ranch Area: Elkhorn Blvd South to Del Paso Rd. Amnest Way East to 22nd StULVHigh Trap CountsCompleted95835, 95673, 95838DeltaGard
8/25/2025
8pm-12am
F st. Drain, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Covell Park, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Community Park, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Chestnut Park, DavisULVAbundanceCompleted95616DeltaGard
8/25/2025
8pm-12am
Campbell ParkULVWest Nile Positive PoolCompleted95776DeltaGard
8/25/2025
8pm-12am
Ag area Northeast 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.


WhenAreaActivityFactorCompleted/
Cancelled
ZipProduct Used
8/25/2025
8pm-12am
AGRICULTURAL AREAS LOCATED SOUTH OF I80AERIAL ULVWNV POSITIVE SAMPLECompleted95618Evergreen 5-25
8/25/2025
8pm-12am
AGRICULTURAL AREAS LOCATED NORTH EAST OF WINTERSAERIAL ULVHIGH TRAP COUNTSCompleted95695, 95694Evergreen 5-25
8/25/2025
8pm-12am
AGRICULTURAL AREAS LOCATED IN NORTH YOLO COUNTYAERIAL ULVHIGH TRAP COUNTSCompleted95937, 95645, 95698Dibrom
8/24/2025
8pm-12am
AGRICULTURAL AREAS LOCATED SOUTH OF I80AERIAL ULVWNV POSITIVE SAMPLECompleted95618Dibrom
8/24/2025
8pm-12am
AGRICULTURAL AREAS LOCATED NORTH OF NATOMASAERIAL ULVWNV POSITIVE SAMPLECompleted95837, 95836, 95626, 95835,95673Dibrom

WHAT WE USE

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