Pesticide spraying planned for La Habra neighborhoods where mosquitoes have tested positive for West Nile virus – Orange County Register

West Nile virus activity has been low so far this season in Orange County, except for La Habra, where vector control officials will spray pesticide in two neighborhoods this week.

The spraying of AquaDuet, which is scheduled for Friday and Saturday, Aug. 11 and 12, will be the first time the agency has deployed truck-mounted application in neighborhoods since West Nile virus came to Orange County in 2004. However, it’s routinely applied by truck or hand in parks around the county.

Use of the pesticide generated outcry from some residents about proposed aerial spraying in 2015 over eight cities. The spraying was ultimately canceled.

Orange County Mosquito and Vector Control spokeswoman Mary-Joy Coburn said 46 mosquito samples in La Habra have tested positive for the virus this season, higher than at this time last year. Elsewhere in the county, mosquitoes carrying the virus have been found in 12 other cities but at much lower rates. In Garden Grove and Anaheim, the cities with the next highest levels, only three samples have tested positive.

By this time in 2016, mosquitoes had tested positive in 21 cities. Last October, a La Habra woman died after she was infected, marking the only fatality of the year.

This year, Orange County has seen only one human case so far, in a Laguna Beach resident who was asymptomatic.

“Aside from La Habra, it seems like a pretty low year so far but things could change at any moment,” Coburn said. “We’re just monitoring the entire county.”

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