Virginia Beach Mosquito Control Announces Increase in WNV Activity

Tuesday, October 09, 2018
​While Labor Day marks an unofficial end of summer for some, mosquito season in Virginia Beach continues to thrive.

Virginia Beach Mosquito Control and the Virginia Beach Public Health department are reporting increased West Nile Virus (WNV) mosquito activity in some parts of the city over the last three weeks.  All of the positives were confirmed by PCR testing at the State Laboratory.

Officials have conducted weekly tests throughout the city since June, and some of the mosquitoes that have been collected and tested for WNV have tested positive.  The positive results have been found in these areas:

Kings Grant, Witchduck, Pembroke, Lakeview Shores, Diamond Lake Estates, Thalia, PA Plaza, Chesapeake Beach, Green Run, Bayside, Larkspur Meadows, Bow Creek, Lamplight Manor, Windsor Woods, Lake James, Aragona Village and Bay Colony.

The primary vector of WNV in our region is Cx. pipiens / restuans, which breeds in water with a higher organic content, so larvaciding efforts by Mosquito Control will focus on stagnant water where mosquitoes may be breeding, such as ditches, stormwater catch basins, standing water in horse pastures and other areas.

Daytime crews are focusing on treating standing water in the affected areas.  Night-time spraying efforts are being increased, and drainage maintenance crews are clearing clogged ditches and pulling debris from drainage pipes to keep water moving and reduce the number of breeding sites.

Residents are urged to dump any containers that may catch and hold rainwater since these can be prime breeding sites for mosquitoes.

West Nile Virus (WNV) is an uncommon viral disease that is spread to birds, humans and other mammals through the bite of infected mosquitoes.  Most people infected with WNV have no symptoms, but some have mild flu-like symptoms and a small number develop more serious neurological disorders.The Virginia Beach Department of Public Health advises residents and visitors to take necessary precautions to avoid mosquitoes:

  • Wear long, loose and light colored clothing.
  • Use insect repellent products registered with the EPA.  No more than 50 percent DEET for adults and less than 30 percent DEET for children.  Use care when applying repellents to children.  Follow all label instructions.
  • Turn over or remove containers in your yard where rainwater collects, such as plant trays, buckets, and toys
  • Clean birdbaths and wading pools weekly.
  • Check window and door screens so mosquitoes cannot enter the home.
The biology lab will continue to monitor and test mosquitoes, and will release additional information if WNV activity continues to increase and spread to other areas.​