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Common
Pests
Fleas
Fleas
are usually found on cats, dogs, carpets, furniture, dusty floors, sandy
sub-floor areas and even grassy areas. Although the common names, cat
flea and dog flea, would suggest that a particular species of flea is
specific to one host, this is not the case and either of the abovementioned
species can be found "biting" various hosts including humans.
The body of an adult flea is laterally compressed, enabling them to move
quickly and easily through dense hair or fur, and each of the six legs
has a pair of claws at the tip to enable them to remain attached to the
host regardless of scratching. The hind legs are well developed to facilitate
jumping onto a passing host.
Fleas are found only on warm blooded animals, and both male and female
adult survive on blood meals. The female adult flea generally takes a
blood meal prior to egg laying. She can lay several hundred eggs during
her lifetime, these eggs turn into white legless larvae which feed on
food debris, human skin scales and undigested blood secreted by the adult
fleas. After several weeks, the eggs pupate in a silken cocoon where they
remain for 7-14 days. The adult flea emerges from this cocoon and attaches
itself to a host ready to start the cycle again.
Adult fleas do not spend their entire time on the host and often drop
off between feeds.
When a flea infestation occurs in a domestic residence, the bites are
usually observed on the ankles and lower parts of the legs as small red
spots, which due to the injection of flea saliva at the time of biting
to prevent the blood coagulating, can cause severe irritation to the host.
The role of fleas in the transmission of various diseases is well documented,
and some of the more common diseases attributed to fleas are bubonic plague,
where the bacteria is transmitted between rats and humans by the flea,
and also murine or endemic typhus. Tapeworms may also be transmitted by
fleas.
Fleas prefer warn humid environments and breed mainly in the warmer months,
hence flea plagues usually occur during summer especially outdoors.
Before any treatment takes places the premises should be carefully cleaned,
especially under furniture and carpet edges. Upholstered furniture and
areas where pets rest or sleep should be given special attention. All
vacuumings should be burnt or sprayed with an aerosol to kill off fleas
and larvae present.
Pet bedding should be washed or replaced and the pets given a flea wash.
Your local veterinarian will advise you of the best product to use.
Grassed areas need to be cut short at least 1-2 days prior to the application
of chemical spray.
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