Where do mosquitoes breed?
lifecycle has four stages: egg, larva, pupa and adult. All mosquitoes need
water to breed and spend their larval and pupal stages in water. This is why it
is important to prevent water from accumulating around your home and to empty
and clean water containers in and around your home weekly.
How long does it take for mosquitoes to hatch after a flood?
Flood-water mosquitoes, which include some species of
the Psorophora, Ochlerotatus and Aedes genera, lay eggs above the
waterline in ditches, ponds, tanks and other places where water collects. The
eggs can remain in dry conditions for several months. After floods or heavy
rains when the water level rises, the eggs hatch and in a few days produce
swarms of aggressive and hungry mosquitoes. Another wave of mosquitoes occurs
later, typically 10 to 14 days after the rains stop. These mosquitoes are a big
nuisance, but not all of them cause illnesses.
What about other types of mosquitoes?
of mosquitoes, including the Culex genus, lay eggs on the stagnant water
left by flooding or rain. These mosquitoes may transmit viruses that cause
diseases such as West Nile virus and St. Louis encephalitis.
Some Aedes mosquitoes breed in
and around homes, preferring containers with cleaner water such as plant
saucers, bird baths, wading pools, and flower vases. These types of mosquitoes
may transmit the viruses that cause chikungunya, dengue, and Zika.
Where are adult mosquitoes found?
mosquitoes frequently rest in grass, shrubbery or other foliage. Aedes aegypti mosquitoes that transmit dengue, chikungunya, and Zika
viruses live in and around homes and other areas of human activity.
How can mosquitoes be controlled around the home?
Get rid of standing water in which mosquitoes can breed. If there are any places around your home where water collects, you may be raising mosquitoes.
What specific steps can people take to control mosquitoes outside a home?
Take the following steps to help cut down on the mosquito population:
- Get rid of or empty and clean on a weekly basis any
cans, buckets, bottles, old tires, empty pots, plant saucers and other
containers that hold water.
- Keep gutters clear of debris and standing water.
Remove standing water around structures and from flat roofs.
- Change water in pet dishes at least once a day.
Change water in wading pools and bird baths at least weekly.
- Fill in low areas in the yard and holes in trees
that collect water.
- Maintain your backyard pool or hot tub and be sure
someone takes care of it if you are out of town.
- Stock ornamental ponds with fish that eat
- Cover trash containers so they will not collect
- Water lawns and gardens carefully so water does not
stand for several days.
- Repair any leaking plumbing and outside faucets.
- Screen rain barrels and openings to water tanks or
- Keep drains and ditches clear of weeds and trash so water will not collect.
people keep mosquitoes out of the house?
Be sure door, porch and window screens are in good condition. Don't leave doors
to the outside standing open. Change water weekly
in vases, plant saucers, and containers holding plant cuttings inside the home.
people protect themselves from mosquito bites?
Cover as much skin as possible with clothing to reduce exposure to mosquito
bites and use a recommended repellent on exposed skin every time you are
outdoors (do not apply repellent on skin under clothing). Mosquitoes may bite
through thin clothing, so spray clothes with repellent containing permethrin
for extra protection. Also, limit the amount of time you spend outdoors when mosquitoes are active (some bite during the day, others
people need to look for in an insect repellent?
Use an EPA-approved insect repellent (see http://www.epa.gov/insect-repellents/find-insect-repellent-right-you). Always
follow label directions. Store insect repellent at the front and back doors of
your home and apply when you go outside. Keep extra repellent in outdoor areas
such as patios and decks.
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