Spiders - Northern Beaches, Sydney Australia

Apart from several types of indigenous Australian spiders whose bites are often dangerous and occasionally life threatening, most are relatively harmless. However, they sometimes bite humans that encroach on their habitat. Any spider bite should receive medical attention as blood poisoning or an infection could possibly result.

Apart from widespread and sometimes pathological fear of spiders, the most common reason for control is the elimination of unsightly webs.

WHITE TAIL SPIDER

Habits:

Most spiders being nocturnal are seldom seen during the day unless disturbed.
Those which depend on webbing to snare their prey seldom move far and hide in a crevice, curled leaf or appear camouflaged as twigs.
Hunting spiders, many of which are ground dwellers are less dependant on webs and move around in the dark hours in search of food. Males seek out the females at mating time, male spiders have long palps alongside their jaws. These sometimes could be sometimes confused as another set of legs, but they are long for the purpose of picking up their sperm and depositing it in the genitalia of the female.
After mating, the male often becomes an immediate high protein meal to assist the egg production of the female.
The eggs are usually deposited into a silken sac produced by the female. The spiderlings hatch inside the sac and moult once before they emerge.
They must find their own food and disperse quickly in search of it. By successive moults they become adults and those that survive can usually be expected to live for 1-3 years.

Whether the spider traps prey in a web or hunts to capture it, the victim is injected with venom through the fangs. This immobilises it.
The body is then squeezed and the erupting liquid is sucked in through the small mouth behind the fangs at the base of the palps. Most species can survive for months without food.
This is just aswell, as insect prey is usually scarce in the colder months.

Silk or web is produced from glands in the abdomen and deposited through the spinnerets. The Orb-Weaving spiders produce an adhesive silk for the snare area of the web and drier silk for the radii and guy lines. In some species, spiderlings let out sufficient web into the air to lift and carry them away.

Biology:

Spiders can be readily distinguished from insects; they have eight legs instead of six and they have two body segments instead of three- the head and thorax are fused into one unit which contains eyes, mouthparts and legs.

The abdomen section is soft and also houses the reproductive organs, the silk glands and spinnerets and the respiratory openings which are visible on the undersurface like the pages on a book. This large surface area acheives the transference of oxygen into the bllod.

There are usually four sets of eyes; each a simple lens the arrangement of these eyes in a pattern is constant for each species and is an aid to identification.

The fine hairs and setae on various parts of the body are said to be sensitive to taste, touch and vibration.

Management:

As with all pest management programs, an Integrated Pest Management (IPM) approach is an integral part of successful spider control.
All control procedures are preceded by a thorough inspection of the entire premises to define the extent of the problem.

Precise application is favoured over "blanket spraying" and sometimes even changing the position or the colour of nearby lights can reduce the number of insects attracted to them and hence the spider population.

 

REDBACK SPIDER FOOTAGE
 

Northern Beaches Pest Management are one of the few companies that offer a 12 month free service warranty period with the majority of our residential household pest treatments, that together with a competitive price and professional service provides you the home owner with the complete pest control package. Get rid of those cockroaches ring now! 

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We spend on average 1 - 2 hours at each job, we get into the roof, we go under the house, and we use a large bulk tank and hose reel to spray treat external areas and are committed to solving your pest problems.

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