Fight the Bite!


Mosquitoes are one of the deadliest creatures on earth; they have the potential to spread many different viruses like West Nile, dengue, chikungunya, and even Zika. There are over 3000 different species of mosquitoes in the world; 26 of these species are found in the County, some of which are potential spreaders of these viruses (called “vectors”). The Vector Control Program monitors, tests, and controls mosquitoes and provides education and outreach. In order to keep yourself, family and neighbors safe from mosquito borne diseases, follow these three simple steps: Prevent, Protect and Report!

Prevent mosquito breeding around your home.

Protect against mosquito bites by using mosquito repellents and wearing long sleeves and pants.

Report mosquito breeding sites like green swimming pools and other standing water in your neighborhood


Video on preventing mosquitoes from breeding in your home


Help “Fight the Bite” and stay safe from mosquito borne diseases like Zika, West Nile virus, dengue, chikungunya and yellow fever by Protecting yourself from getting bitten and Preventing mosquitoes from breeding in your homes. Check out this short video to learn how! (Spanish version)



Download our Fight the Bite App to Report Mosquito Breeding


Click the image above to download the Fight the Bite app!

Adult Mosquito Treatment Information

Invasive Aedes Adult Mosquito Control and Mosquito-borne Illness Prevention Frequently Asked Questions 

In the News

The Man to Bug About Bugs

Mosquito Season is Back; County Conducts First Larvicide Drop of 2017

County: Mosquito Fight is West Nile Virus, Zika Fight

Giant Mosquito? Mosquito-Eater? Nope, It's a Crane Fly!

First Local Zika-related Birth Defect Reinforces Travel Advisory

County Urges Public to Find, Dump Out Standing Water Around Homes

Have Your Mosquito-proofed Your Rain Barrel?

Hawk Tests Positive for West Nile Virus; Protect Against Mosquitoes


Invasive Mosquito Information                 

General Information         

Invasive Aedes Information

Adult Mosquito Treatment Information

Aedes Mosquito Brochure: English

WNV Frequently Asked Questions

Aedes Mosquito Brochure: Spanish

WNV Clinical Information

Aedes aegypti Video

WNV Horse Information


EPA Information on Insect Repellents

WNV Activity Updates      Prevention                                        

2017 West Nile Virus Activity

Mosquito Prevention

Aerial Larvicide Application

Green Swimming Pools

State of California WNV webpage

Mosquito Fish




Pamphlet Library "Go Blue, Not Green!" Video
Request Educational Materials "Stop West Nile Virus" Video Part 1
Request a Presentation "Stop West Nile Virus" Video Part 2
SD Swat Team Kid's Page - NEW GAMES "Local WNV Survivor Story"
Geocaching "Lucha Contra la Picadura del Zancudo" Video
QR Codes "WNV Prevention" Video
  "WNV Protection" Video
Team Fight the Bite Geocaches

"WNV Reporting" Video



Other Languages          

Español                   Cambodian
Francais                  Laos
Tagalog                   Chinese
Russian                   Tiêng Viêt   
Português               Somali
For More Information On 
WNV Or Other Vectors Contact: 
(858) 694-2888
SD Fight the Bite Homepage