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Napa County mosquito director warns Saint Helena to clear standing water as new container-breeding species spreads

Saint Helena City Council · February 25, 2026
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.

Summary

At a Saint Helena City Council meeting, the Napa County Mosquito Abatement director urged residents to remove standing water and other small habitat after an invasive container-breeding mosquito has spread across California; he said the species has not been found in Napa County but was detected on Mare Island last year.

Wes Maffei, director of the Napa County Mosquito Abatement District, told the Saint Helena City Council that an invasive container-breeding mosquito found in California since 2013 is spreading and requires a community response. "No water, no mosquitoes, end of story," Maffei said, summarizing the district’s main preventative message.

Maffei outlined the district’s integrated vector management approach — physical habitat reduction, biological control, limited chemical control and public education — and warned that the insect…

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