Mosquito Control Moves Forward with Plans for Aerial Spraying


July 12, 2010


Treatment for Adult Mosquitoes in High Risk Areas Begins Tuesday Night

Elk Grove, Calif.— The Sacramento-Yolo Mosquito and Vector Control District announced today that aerial treatment for adult mosquitoes that may carry the potentially fatal West Nile virus is scheduled for two consecutive nights beginning Tuesday, July 13th from approximately 8:00 pm to midnight over areas of concern in South Sacramento. “Our surveillance efforts indicate high infection rates and that aerial treatments to reduce the number of infected adult mosquitoes are necessary in order to protect public health” said David Brown, District Manager.

Over the last few weeks high temperatures have amplified the virus and many infected mosquito samples and birds have been found. Approximately 37,000 acres of South Sacramento from Elder Creek Road down to Elk Grove Blvd and from Franklin Blvd to Excelsior Road will be treated with Evergreen 60-6, an insecticide registered for use in mosquito control by the US Environmental Protection Agency. This is the same material that has been used in previous treatments. While attempts are made to notify the public, the District may postpone or cancel a scheduled treatment due to weather and/or other reasons.  For additional details including a map of the treatment area, information on Evergreen 60-6, or to sign up for Spray Notifications, please visit

  • Blue Markers: Dead Birds
  • Green Markers: Mosquito Traps

View the Aerial Treatment page with dynamic map

Despite the current focus on South Sacramento, all residents should remain cautious as virus activity has been detected in other areas of both Sacramento and Yolo counties.  “West Nile virus is here and we need everyone to be diligent about protecting themselves” said Brown “Wearing an effective mosquito repellent is key.”

Residents can subscribe to receive email notifications for mosquito treatments by zip code. To sign up, visit and go to Spray Notifications. Information for current treatments planned is also available on the District website.

Contact: Luz Maria Rodriguez, Public Information Officer

Office: 916.405.2082 | Cell: 916.416.6337


Thus far, West Nile virus activity has been detected in 19 counties throughout the state. In 2009, 112 human cases were reported and four fatalities.

2010  West Nile virus activity update:

Level  2–Sacramento County: 14 dead birds, 0 sentinel chickens, 44 mosquito samples have tested positive for West Nile virus to date.

Level 2–Yolo County: 2 dead birds, 0 sentinel chicken, 0 mosquito samples have tested positive for West Nile virus to date

Practice the District D’s of Mosquito Prevention:

DRAIN standing water that may produce mosquitoes.

DAWN and DUSK are times to avoid being outdoors.

DRESS appropriately be wearing long sleeves and pants when outside.

DEFEND yourself by using an effective insect repellent.  Make sure to follow label directions!

DOOR and window screens should be in good working condition.

DISTRICT personnel are also available to address any mosquito problems. Call them at 1-800-429-1022 or visit