The lazy, hazy, crazy days of summer bring with them the torment
of fleas.
The flea is responsible for many skin disorders on dogs and cats as well as
causing them discomfort. Unless they are able to actually see the flea on
the pet many owners are reluctant to accept that their pet has fleas, but
the flea is a "temporary obligate parasite" meaning that they spend most of
their time in the environment, usually the bedding of the pet, only hopping
on the host for a feed of blood. The fleas found on the pet may be only a
small percentage of the total flea population.
The female flea can lay up to 20 eggs per day. The eggs are
usually laid in the pet's bedding or on the animal where they fall off and
are deposited in the home or garden. If conditions are favourable eggs can
hatch within a few days to maggot like larvae. These are found mainly where
the pet sleeps and in the carpet and crevices. Full development of the larvae
can take several weeks after which they spin a cocoon and enter pupation.
The emergence of the flea from the cocoon can take as little as a week, however
under the right climatic conditions the pupae can survive for several months.
Hatching of the mature flea from the cocoon is triggered by vibration of a
passing animal or human. Fleas have legs adapted for jumping and are stimulated
to jump when a shadow falls on them suggesting an animal is nearby. Adult
fleas locate a host by vibration, warmth and odour. Many dogs and cats develop
a severe allergy to flea bites and also self mutilate themselves in an attempt
to gain relief from the itching. These pets must be treated by a veterinarian
to obtain relief.
The flea is also a host for the common tapeworm. A pet with
fleas must be wormed for tapeworm and control of this worm must include effective
flea control.
There are many products available to assist in controlling
fleas on both pets and in the environment. It is useless to treat the pet
for fleas unless the environment is also treated or the pet will quickly become
re-infested. Flea rinses, powders or sprays may be used to destroy the fleas
on the pet while flea collars and systemic insecticidal products may be used
to repel further infestation. There are also tablets available which quickly
kill fleas on the pets as well as products which are placed on the animals
skin.
It is of paramount importance to comply with the instructions
on these products and not to use them in combination with each other unless
the directions specify that it is safe to do so. Never use products past the
use by date. Veterinarians are able to advise on the safe and effective use
of flea control products. Care must be taken with use of flea control products
on young puppies and kittens. House and carpet sprays and insecticidal foggers,
particularly those containing a growth regulator which interrupts the life
cycle of the flea to prevent it maturing, provide the best method of destroying
fleas in the environment.
It is necessary to maintain continuous treatment of both the
pet and the environment during the warmer months.
Author: Petcare Information & Advisory
Service Australia Pty Ltd