WESTAMPTON, N.J. (CBS) - Mosquitos infested with West Nile virus have been discovered in Burlington County, NJ, so tonight between 6pm and 12 midnight the county will be spraying in several communities to kill the deadly pests.

Ralph Shrom, spokesman for the Burlington County health department, says the infected mosquitos were found recently in routine testing.

“We do go out and we have traps for mosquitos and we try to identify areas where mosquitos are prevalent, where we may  have evidence of those carrying West Nile virus, and we’ve turned up positive samples in four of our communities: Beverly City, Evesham, Maple Shade Township, and Washington Township, down in the Pines,” Shrom told KYW Newsradio today.

He says mist spraying will be done from trucks on the ground, and to be on the safe side he urges residents to stay inside until all evidence of the mist has dissipated.

Shrom also urges residents to dump any standing water on their property, even in a container as small as a bottle cap, which could become a breeding ground for mosquitos.

Shrom says the county is aware of areas where ponding occurs on a regular basis and those areas are also being targeted.

Reported by Kim Glovas, KYW Newsradio 1060