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Northwest Mosquito and Vector Control

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Mosquito adulticiding treatments for the City of Eastvale are conducted by the Northwest Mosquito and Vector Control.

The Northwest Mosquito and Vector Control District provides vector control services in the northwest portion of Riverside County encompassing over 240 square miles. For additional information about Northwest Mosquito and Vector Control, please visit their website: www.northwestmvcd.org

To request traps/samples and spraying in your area please contact the District at 951-340-9792.


Facts About Mosquitoes:

Mosquito life cycle
  • All mosquitoes must have standing water to complete their life cycle. It only takes 7 days for a mature mosquito to develop from an egg during warm weather. 
  • Mosquitoes do not hatch in grass or shrubbery unless standing water lies beneath. Adults may be seen resting in these areas.
  • Only the female mosquito bites. She uses the blood meal obtained in order to produce eggs. The male feeds only on plant juices and is incapable of breaking the skin.
  • Mosquitoes may live as long as 3 weeks during the summer. They may live several months during the winter, surviving in protected areas to start a new generation in the spring. 

For tips on how to prevent breeding: www.northwestmvcd.org/Mosquitoes

Mosquito Control Pesticide Application Information

The District treats areas with Aqua-Kontrol (EPA Reg # 73748-1), which is approved for use in mosquito control by the US. EPA. They have been working hard to use Integrated Pest Management Practices in these areas, however due to lack of access, virus activity, combined with adult trap counts, they have decided that adult mosquito control via truck mounted ground fogging is our best means to control the mosquito populations in the areas being treated.
  • All mosquito control adulticides used by the district are approved by federal and state regulatory agencies
  • Adulticiding applications are made by vehicle mounted ultra-low volume (ulv) foggers, which minimize exposure to people and the environment
  • Adulticide products target adult mosquito populations
  • The district recommends closing windows and turning off air conditioning units during the application period listed below
  • Adult mosquito control products will not damage vehicles or outdoor furniture, and are not known to be harmful to vegetation and pets

What is West Nile Virus?
West Nile (WN) virus is a mosquito-borne virus that has been found in parts of Asia, eastern Europe, Africa, and the Middle East. The virus was first detected in the United States (U.S.) in 1999 in New York City. The majority of people and animals that are infected with the virus have a mild illness or no symptoms. In rare cases, the virus can cause a more serious inflammation of the brain. The elderly are at a higher risk for disease caused by West Nile virus.

How Do People And Animals Get West Nile Virus?
WN virus is transmitted to people and animals by infected mosquitoes. Only certain species of mosquitoes carry the virus and very few mosquitoes are actually infected. A mosquito first acquires the infection by feeding on a bird with the virus in its blood. The virus lives in the mosquito and is transmitted to a new host in the mosquito's saliva when the insect bites a person or animal. Humans and horses are incidental hosts for the West Nile virus. The virus is most prevalent from May to October when mosquitoes are most abundant.

West Nile Virus Prevention And Control
To decrease exposure to mosquitoes and the infections they may carry:
  • Avoid outside activity at dawn and dusk during the mosquito season (May to October). This is particularly important for elderly and small children.
  • Wear protective clothing (long pants and long sleeves) and apply insect repellant when outside. 
  • Make sure that doors and windows have tight fitting screens. Repair or replace screens that have tears or holes in them.
  • Drain all standing water on private property and stock permanent ponds with fish that eat mosquito larvae.
  • Make sure roof gutters drain properly. Clean clogged gutters in the spring and fall.
What Do I Do If I See A Dead Bird?
If you find a dead bird, particularly a dead crow or other corvid (e.g., jay, magpie, raven), please call the number below promptly. Do not touch the bird.

Dead Bird Surveillance and Contact Information:
West Nile Virus Dead Bird Surveillance Program
Toll Free Telephone: 877-WNV-BIRD (877-968-2473)
Website: http://westnile.ca.gov


Additional Resources:
Center for Disease Control: Prevent Mosquito Bites
Center for Disease Control: Insect Repellent Use & Safety