DENGUE
PATROL ACTIVITIES
DAY 18
AND 19:
5-6 OCTOBER 2015 ( MONDAY-TUESDAY)
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DATE
|
DAY
|
ACTIVITIES
|
|
DAY 18 & 19
5 AND 6
10/2015
MONDAY-TUESDAY
|
Update Dengue Patrol Media Social SKSI
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Sharing
dengue info with family members
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Mosquito Life
Cycle
The mosquito life cycle takes
place in four distinct stages, from egg through to adulthood.
Eggs
Female mosquitoes lay eggs about
every third day during their lifespan, usually in clumps of 100 to 300 eggs.
The eggs are deposited either as “rafts” floating on the surface of standing
water or on the ground in areas that regularly flood. Mosquitoes can lay eggs
in as little as one inch of water. The eggs, generally white when laid, cannot
hatch unless they are in water, usually for two to three days.
Larvae
When the eggs hatch, the larvae
emerge. They are called “wigglers” because that’s how they swim. Most of the
time, they hang from the surface of the water, breathing through tubes. The
wigglers feed on organic matter in the water, shed their skins four times over
about a week, and develop into pupae. Larvae are the easiest to kill, using
oils that block their breathing or bacteria that poison them.
Pupae
The pupae are called “tumblers”
for the way the fall into the deepest part of the water when threatened by
predators. They are shaped like commas, partially encased in cocoons, with the
head at one end and tiny flippers at the other. The pupae do not feed while
developing, but breathe through tubes like the larvae. It takes about four days
for the the adult mosquito to emerge.
Adults
The newly emerged adults climb out
of the water to rest and wait for their bodies to dry out. The males will take
a day or two to fully develop their reproductive organs, then seek out a
female, by the sound of her wingbeats, for mating. They’ll live about three to
five days after that, feeding on fruit and plant nectar. The females mate once,
but continue laying eggs after every blood meal. Under the best conditions,
they can live up to a month or two.
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