Aggressive mosquito season expected by control district
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The Marin/Sonoma Mosquito and Vector Control District is predicting an aggressive and busy mosquito season.

District officials stated that requests for service are up 42 percent from last year, at this same time. The increase in requests for service could be due to the unseasonably warm weather allowing tree-hole mosquitoes to emerge earlier, coupled with drought conditions and an increase in the use of rain capturing systems that have not been mosquito-proofed.

“Drought years do not necessarily mean there will be less mosquitoes,” said Jason Sequeira, Field Operations Supervisor for the Marin/Sonoma Mosquito and Vector Control District. 

“In fact, what we typically find is higher concentrations of mosquitoes in what little water has accumulated.”

As the need for water conservation increases, so does the use of makeshift water containment systems, such as rain barrels and buckets. These containers, if not properly mosquito-proofed, can produce thousands of mosquitoes.

Residents are encouraged to follow these simple mosquito-proofing tips to eliminate mosquito production and reduce the risk of West Nile virus transmission: 

• Cover rain barrels and other containers with a mosquito-proof screen (fine mesh, 1/16 of an inch).

 

• Keep your containers free of organic materials such as leaves and debris.

 

• Inspect rain barrels and other containers on a regular basis to be sure there are no cracks or leaks and that all seals and fittings remain intact.

 

• Cisterns (above and below ground) should be completely enclosed with no openings to the outside environment.

 

• Cover all inlets, outlets and vents with fine mesh screening (1/16 of an inch).

According to the California Dept. of Public Health (CDPH), 372 human cases of West Nile virus were reported in 2013. Of the reported cases, there were 14 fatalities. 

The CDPH and the Centers for Disease Control and Prevention predict West Nile virus will again pose a public health threat in California in 2014.

Residents in Marin or Sonoma counties should contact the Marin/Sonoma Mosquito and Vector Control District to report mosquito problems or potential mosquito production sites where they live or work. 

To learn more about local mosquito control, disease surveillance and public education efforts, please contact the Marin/Sonoma Mosquito and Vector Control District at (707) 285-2200 or go to www.msmosquito.com. 

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