Swimming pools & mosquitoes
pools that are not properly maintained can be excellent larval habitat for
mosquito species that can transmit West Nile
Virus such as Culex. If you have a
swimming pool in your yard that will not be opened, please call our office
and we can apply bacterial products that will reduce/eliminate mosquitoes
from emerging from this area. These products will not harm your pool if you
plan to open it in the future.
is a pool in your area that is not on your property, please call your
Board of Health office and ask them to e-mail us at firstname.lastname@example.org or fax this information on
letterhead to (508) 393-8492.
here for a 10 second YouTube video of Culex
larvae we recently found in an abandoned swimming pool: https://www.youtube.com/watch?v=jehak_hyRT8
Tens of thousands of larvae
(identified by our lab as Culex
pipiens/restuans) in an abandoned swimming pool. This pool had a 2-3 inch
ring around the entire perimeter…this pool was approximately 25 feet across.
The circumference is approximately 78.5 feet (c=d*π) – that’s a lot of
- Culex pipiens - Very common year round
mosquito which primarily feeds on birds. It will readily enter a house,
but is considered shy. It will typically only bite people when they are
motionless, usually while they are sleeping. The larvae are found in
water holding containers and in polluted waters. Culex pipiens are considered the primary vector of West Nile Virus. West Nile Virus has been
isolated from this species in Massachusetts.
- Culex restuans - Culex restuans has a
distribution that ranges from central Canada
south into Mexico.
The mosquito is very common in the eastern and central United States. Culex
restuans undergoes a life cycle that is typical for domestic Culex.
Inseminated adult females enter hibernation in fall and pass the winter
in a period of quiescence. Culex restuans utilizes an
exceptionally wide range of larval habitats. The water used by this
species can vary from nearly clear to grossly polluted.
Culex restuans regularly colonizes temporary ground pools that
remain flooded after they have produced broods of floodwater Ochlerotatus.
Culex restuans is also the first species to utilize water that
collects in discarded tires. The species can often be found in tire
water that is absolutely clear and devoid of leaf litter.