From Palo Alto Online
September 15, 2021
The Santa Clara County Vector Control District, which monitors the transmission of vector-borne diseases from insects, will be treating parts of Palo Alto and Mountain View with insecticide after recently detecting West Nile virus-positive mosquitoes in limited areas of the two cities.
Weather permitting, the district will use trucks to spray the impacted areas on Friday, Sept. 17, starting around 10 p.m., according to a county press release. The process should take three hours.