The Delaware General Health District is informing residents in the Berkshire Township area that mosquito fogging will occur on Monday, July 18, as a result of a mosquito collection trap testing positive for West Nile virus.

This marks the first time this season the virus has been detected within the health district, officials said.

Weather permitting, the heath district’s residential services unit will fog in the area north of Dustin Road, south of State Route 37, east of Interstate 71 and west of Golf Course Road, around 9 p.m. Monday. Fog is sprayed from marked health district pickup trucks.

Residents should bring children and pets indoors while fogging is being conducted, officials said.

Any residents who do not want their properties sprayed should call the health district at 740-368-1700 and request to be placed on the no-fog list.

Updated fogging plans will be announced on DelawareHealth.org and on the health district’s Facebook and Twitter pages.