Urban Aerial Spraying
  • Nothing currently scheduled.

Agricultural Aerial Spraying
  • Agricultural aerial spraying scheduled Saturday, August 27th, Sunday, August 28th 8pm-midnight in Yolo county. See below for zip codes and details.
    Map of treatment areas

Ground Spraying
  • Nothing currently scheduled.

Sign up for email notifications when spraying is scheduled. See below for past treatments.

Spraying Update

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**

  • Sign up for spray notifications to receive emails when spraying is scheduled in your zip code.
  • Residents can sign up for urban aerial spraying updates by texting “sprayupdate” to 69922. Messages will only be sent to subscribers when aerial spraying is scheduled, the morning of the first scheduled day, and a live notification when spraying begins and ends each day.
  • A daily updated recording is available by calling 800-429-1022, menu option 3.


Urban Aerial Spraying

  • Nothing currently scheduled.
View information for 2016 aerial spraying events here and more archived at the bottom of this page.

 



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 8:00pm and midnight.

  • View an interactive map of the agricultural areas subject to aerial treatments.

    WhenAreaActivityFactorCompleted/
    Cancelled
    Zip
    8/24/2016
    8pm-12am
    Agricultural Areas Located North East of WintersAerial ULVWNV Positive TrapCompleted95694, 95695, 95616
    8/26/2016
    8pm-12am
    Agricultural Areas Located in North Yolo CountyAerial ULVHigh Abundance95937, 95698, 95645
    8/26/2016
    8pm-12am
    Agricultural Areas Located North of W Elverta RdAerial ULVHigh Abundance95837, 95836, 95626
    8/27/2016
    8pm-12am
    Agricultural Areas Located North of Davis, South of WoodlandAerial ULVWNV Positive Trap95695, 95776
    8/28/2016
    8pm-12am
    Agricultural Areas Located South of DavisAerial ULVWNV Positive Trap95616, 95618, 95620
    8/28/2016
    8pm-12am
    Yolo Bypass South of I80Aerial ULVWNV Positive Trap95618

    List of all agricultural aerial treatments conducted to date in 2016.

     



    Ground Spraying

    • As a response to increased WNV activity, the District may conduct localized ground treatments with trucks or backpacks throughout neighborhoods, parks, creeks and other open areas.

  • View an interactive map of the areas subject to ground treatments.

    WhenAreaActivityFactorCompleted/
    Cancelled
    Zip
    8/25/16
    8pm-12am
    Yolo Bypass Wildlife AreaTruck ULVHigh trap countsCompleted95618
    8/25/16
    8pm-12am
    Roosevelt RanchTruck ULVHigh Trap CountsCompleted95698
    8/25/16
    8pm-12am
    RD. 10 RiceTruck ULVHigh Trap CountsCompleted95698
    8/25/16
    8pm-12am
    Northwest Yolo RiceTruck ULVHigh Trap CountsCompleted95695
    8/25/16
    8pm-12am
    North Yolo RiceTruck ULVHigh Trap CountsCompleted95645
    8/25/16
    8pm-12am
    No. East of DavisTruck ULVHigh trap counts95618
    8/25/16
    8pm-12am
    Natomas Rice FieldsTruck ULVWNV Positive TrapCompleted95835, 95836
    8/25/16
    8pm-12am
    Knights LandingTruck ULVWNV Positive TrapCompleted95645
    8/25/16
    8pm-12am
    Knights Landing RiceTruck ULVHigh Trap CountsCompleted95645
    8/25/16
    8pm-12am
    Herald Area Hwy 104 south to Simmerhorn/ West to Alta MesaTruck ULVWNV Positive Mosquito PoolCompleted95632, 95638
    8/25/16
    8pm-12am
    Elder Creek/Bar Du LaneTruck ULVWNV Positive TrapCompleted95829 95830
    8/25/16
    8pm-12am
    East El Macero riceTruck ULVHigh trap countsCompleted95618
    8/24/2016
    8pm-12am
    Valley Oak ParkTruck ULVWNV+ poolCompleted95694
    8/24/2016
    8pm-12am
    So. West Yolo riceTruck ULVWNV+ poolCompleted95695,95616,95694
    8/24/2016
    8pm-12am
    No. of Putah Creek (Winters)Truck ULVWNV+ poolCompleted95694
    8/24/2016
    8pm-12am
    Co. Rd 87E @ Grant AveTruck ULVWNV+ poolCompleted95694
    8/24/16
    8pm-12am
    Woods Rd South to Valensin, McKenzie East to CanalTruck ULVWNV Positive Mosquito Poolcompleted95632, 95693
    8/24/16
    8pm-12am
    Sheldon/Grantline Road areasTruck ULVWNV Positive Trapcompleted95624
    8/24/16
    8pm-12am
    Northwest Yolo RiceTruck ULVHigh Trap CountsCompleted95695
    8/24/16
    8pm-12am
    Elder Creek/Bar Du LaneTruck ULVWNV Positive Trapcompleted95829 95830
    8/24/16
    8pm-12am
    East Galt/ Herald Area Hwy 104 south to Simmerhorn/ Kirkwood Rd West to Carillion BlvdTruck ULVWNV Positive Mosquito Poolcompleted95632, 95638

    List of all ground treatments conducted to date in 2016.




    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: Historical information for previous ground and agricultural aerial treatments: