||September - October 2009
The Buzz is a semi-monthly summary
used to disseminate important information about mosquitoes and
mosquito control in the City of Portsmouth. Above average rain fall
for the month of June has made for an extremely busy month. Mosquito
activity remains high as adult mosquito populations are elevated and
neighboring jurisdictions have reported finding mosquito viruses.
Portsmouth mosquito control efforts are currently at maximum
Catch basin treatments were completed in the first two weeks of
August. The heavy rain normally will not “flush” the product out of
the storm drains. The product should control mosquitoes thru the end
Mosquito trapping efforts
have shown wide fluctuations in mosquito
populations with a general trend upwards. Trap
counts peaked around the middle of August.
Complaint calls remain an anomaly this season. August we only
recorded 17 complaint calls. Calls were uniformly distributed with
no “clustering” or “hot spots”.
One aerial larvicide application was performed in mid August. A
contractor treated approximately 300 acres on the Craney Island
(Dredge Material Management Area, Portsmouth Landfill, and Navy Fuel
August was a busy month for adulticide operations. When weather
conditions permitted crews were able to treat just of 11,000 acres
for adult mosquitoes. Wind and weather permitting crews should
complete pre Labor Day spraying the city this evening. Spray
operations are currently projected to continue through the end of
October. For information about spray activities call 393-8666 and
press 1 when prompted.
To minimize exposure to mosquitoes, residents are encouraged to.
Wear long, loose and light-colored clothing.
Make sure window and door screens in your home
are functional and in place.
Use insect repellent products registered with
the Environmental Protection Agency such as products
containing DEET, Picaridin, or Oil of Lemon
Eucalyptus. When using a product containing DEET, no
more than 50 percent DEET should be used for adults
and less than 30 percent should be used for
children. Follow instructions when using insect
For additional, please call or visit the
Virginia Department of Health’s website at