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Paper Wasps
Paper
wasps make nests of grey papery wood fibre material. The nests are cone-shaped,
becoming round as more cells are added. Nests are a maximum diameter of
10-12 cm, with numerous hexagonal cells underneath, some with white caps.
Nests are exposed and suspended by a short stalk under an overhang, often
on a pergola, the eaves of a roof or in a shrub
or tree. Wasps cluster on the nest or
forage in the garden and around buildings.
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Paper wasps often
suspend their nest from
the eaves of a house.
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Paper
wasps will often attack if they are disturbed
or feel threatened.
They
have some beneficial value as predators of pest caterpillars, however
they have a painful sting and will attack any person approaching or disturbing
their nest. Nests likely to be disturbed represent a hazard and should
be avoided during the day.
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In the
event of a sting
apply a cold pack.
Seek medical attention
if the victim is known to
be allergic or if symptoms become more severe.
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Potter
Wasps
The potter
wasps are closely related to the paper wasps.
However, potter wasps do not form colonies. They are solitary, and feed
on flower nectar and hunt caterpillars to feed their larvae. Potter
wasps make mud nests for their eggs and larvae or use abandoned burrows
of other insects. They stock the nests with caterpillars and other grubs,
which they seal in with mud. These are eaten alive by the wasp larvae.
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Sting:
Potter wasps
have the potential to deliver painful stings, but are not aggressive and
rarely attack humans. An ice pack may be used to relieve the pain of the
sting. If there is evidence of an allergic reaction, medical attention
should be sought.
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European
Wasp
The
European Wasp was first found in Australia in 1959 in Tasmania. By 1978
they were also known in Victoria, South Australia, New South Wales and
Western Australia, and are now firmly established in the Sydney area.
Their nests, which are made out of chewed wood fibre, can be found in
ceilings, wall cavities, logs, tree trunks and soil. Colonies are started
by a single fertilised queen, which lays an egg in a number of cells in
the nest.
These hatch into grub-like larvae and are tended by the queen for a number
of weeks. They become the first batch of workers that take over nest construction
and rearing of the larvae while the queen concentrates on laying eggs.
The nest grows throughout the summer until a batch of males and new queens
are hatched in the autumn. These mate and fly off to start new nests.
In Europe, the nest then disintegrates, but in Australia's warm climate
the nest can continue to grow over a number of seasons. This results in
giant and potentially dangerous nests of over 100,000 wasps.
European
Wasps are aggressive when
their nests are disturbed.
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Unlike bees, they can sting more
than once and do not
die after delivering their venom.
The sting is painful and an ice pack
will relieve the swelling.
However, some people are allergic
to the venom and should seek
medical attention if stung.
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Remember
that the destruction of nests should be
done by someone qualified.
Childs Pest
Services put your family and pets safety first when it comes to treating
wasps and bees around your home.
If you have a problem with wasps nests and would like us to get rid of
them, or have any problems with pests around your home or business - why
not call us today!!
Phone:
45777910
This
newsletter was researched and compiled from information from
the CSIRO and the Australian Museum on-line.
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© 2007 Childs Pest Services Pty Ltd
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