Spraying to control adult mosquito populations will take place in Manchester Township on Monday evening, according to a news release from the Penn State Cooperative Extension York County.

Both residential and commercial areas in the vicinity of North George Street, from Masonic Drive to Emigsville and east along Woodland View Drive to Grim Lane, will be sprayed to reduce the mosquito population. Tuesday is the rain date for the spraying.

Samples collected in the area on July 13 by staff of the Pennsylvania Department of Environmental Protection tested positive for West Nile Virus and indicated a high mosquito population, the news release said.

All of the spraying will be done by the York County West Nile Virus Program staff.

A truck-mounted Biomist 3+15 ultra low volume spray will be applied up to the label rate of three ounces per acre, the news release said. The insecticide will be applied in concentrations significantly below what a person would use when spraying a commercial insecticide inside their home.

For more information on reducing mosquitoes contact the Penn State Cooperative Extension York County West Nile Program office at 840-2375, and for information on West Nile Virus call the the Department of Health at 1-877-PA-HEALTH, or visit www.westnile.state.pa.us.