By Kim Glovas

DOYLESTOWN, Pa. (CBS) — Bucks County, Pa. is reporting a resurgence or mosquitoes infected with the West Nile virus.

Tonight, the county will be spraying in Buckingham Township to control the insects.

The number of mosquitoes found in traps that are positive with West Nile virus is already higher this year than it was for all of last year, according to Phil Smith, West Nile virus coordinator for the county health department.

“If we get mosquito traps that are positive — not only for the West Nile virus — and we have at least 50 mosquitoes in that trap, then we do spray or we will consider sprays in any area of the county. We have already sprayed Croydon area twice, I believe, this year,” he tells KYW Newsradio.

Smith says the mild winter may have a lot to do with the increased number of mosquitoes.  He believes mosquitoes began breeding sooner and bred more rapidly in the spring.

Plus he adds, they thrive in the hot, humid conditions that have been plaguing the rest of us all summer.

Spraying to eradicate mosquitoes infected with the West Nile virus will take place between 7:45pm and 10pm in Buckingham Township, Bucks County.