Northwest Mosquito & Vector Control District

Protecting northwest Riverside County since 1959

Communities Served by the District

• City of Corona• City of Canyon Lake• City of Eastvale• City of Jurupa Valley• City of Lake Elsinore• City of Norco• City of Riverside

• Arlanza/Arlington• Canyon Crest• Corona Valley• El Cerrito• Home Gardens• La Sierra• Woodcrest

Incorporated Unincorporated

• Staff of 16 regular employees plus seasonal help

• Serving over 900,000 people in a 300 square mile area

• Fleet of over 30 vehicles including:• Service trucks• All-terrain vehicles• A Boat• A Hovercraft

District Resources

Services Provided by the District

• Mosquito Control• Rodent Control• Honey Bee Program• Fly & Midge Control• Other Vectors

The District’s Proactive Approach to Mosquito Control

Larval control95%

Adult control5%

• The bulk of our mosquito control focuses on the immature life stages of the mosquito, which are aquatic.

• Costs to kill mosquito larvae = $0.25/application• Costs to kill adult mosquitoes = $100/application

• Every month the District inspects (on average) 15,000 potential breeding sites and treats them as necessary

• To kill mosquito larvae, we primarily use a bacteria that the mosquitoes ingest and then die. The bacteria causes no deleterious effects to other organisms or the environment.

Proactive

Reactive

Only Female Adult Mosquitoes Bite

Only the female mosquito bites humans and other animals.

They need an essential amino acid found in blood to produce their eggs.

West Nile Virus

www.cdc.gov

2015

Adult Mosquito Surveillance Traps

For host-seeking mosquitoes For egg-laying mosquitoes For resting mosquitoes

Identifying West Nile Virus in a Given Area

1. Mosquitoes collected from traps are sent to the state for testing for West Nile virus.

2. We receive a positive human case from the Riverside County Department of Public Health.

When Adult Spraying is Deemed Necessary

1. Neighborhood signs are posted along spray route

2. Appropriate city and county officials are notified via email.

3. Maps of spray area are uploaded onto the district’s website.

4. The District updates its social media accounts with information on the spray area.

www.northwestmvcd.org

How to Protect Yourself and Loved Ones From Mosquitoes

Mosquito fish Available for Free!

The stocking of mosquito fish for control is highly encouraged by the District, and fish are provided to our residents free of charge.

Mosquito fish (Gambusia affinis) are small guppy like fish that can be stockedin ornamental ponds, water troughs, bird baths, etc. to prevent mosquito breeding.

Follow us on Facebook and Twitter!

www.northwestmvcd.org

(951) 340-9792

If residents have questions, we are happy to help.