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August 5th 2014 – Mosquito Adulticiding Scheduled in the Livermore Area to Suppress West Nile Virus Activity

HAYWARD – Due to the increased activity of West Nile virus in the Livermore area, the Alameda County Mosquito Abatement District will be treating for adult mosquitoes on Wednesday and Thursday between 9:30pm and 5am, weather permitting. District personnel will be applying Pyrenone 25-5 Public Health Insecticide at a rate of .04oz./acre by a truck mounted ultra low volume sprayer. Two areas will be targeted for the treatment. The first area is generally bordered by – Arroyo Seco on the north; Lucille St., Mines Rd., and Buena Vista Ave. on the west; S. Vasco Rd. on the east; and Tesla Rd. on the south. The second area is generally bordered by – Encino Dr. and El Caminito on the north; Murdell Lane on the west; El Padro Dr. on the east; and Concannon Blvd. on the south. A map of the adulticiding zones can be seen below.

To date in Alameda County, Livermore has had 24 of the 30 West Nile virus positive dead birds, and 8 groups of positive mosquitoes. The District continues its surveillance and larval control program throughout the county. Residents are urged to be proactive by eliminating sources of water where mosquitoes can breed and protecting themselves from mosquito bites. If you come across a dead bird please report it by calling (877)WNV-BIRD or online at

District Manager Chindi Peavey said, “We need all residents of the county, especially those in the Livermore area, to help us fight West Nile virus by eliminating standing water on their property. It is also important to protect yourself from mosquito bites. Limit outdoor activities when mosquitoes are active, wear pants and long sleeves if practical, and apply insect repellant on exposed skin.”

As of August 5th, California has had 1,014 dead birds, 1,268 mosquito samples, 56 sentinel chickens, and 35 humans test positive for West Nile virus. One person in California has died from West Nile virus this year. Bird, mosquito, and human numbers are all higher than this time last year.

West Nile virus is transmitted to people and animals through the bite of an infected mosquito. There is no cure for West Nile virus. Approximately one in five people who are infected with West Nile virus will develop symptoms such as fever, headache, body aches, joint pains, vomiting, or rash. Less than one percent will develop a serious neurologic illness such as encephalitis or meningitis. Adults over 50 years old and people with compromised immune systems are at increased risk of serious complications. Anyone who develops symptoms should seek medical care immediately.

Since horses are very susceptible to West Nile virus and vaccines are available, horse owners are advised to contact their veterinarians immediately about timely vaccinations.
For information about mosquitoes and West Nile virus visit our website: can request mosquitofish for their fish ponds, horse troughs, etc. by contacting our District office. We are located in Hayward at 23187 Connecticut St. Our phone number is (510)783-7744. For information concerning West Nile virus symptoms, prevention or testing please contact the Alameda County Public Health Department at (510)267-8001.