Cockroach-Circle

Cockroaches

Overview


You might be surprised to know that there are approximately 400 species of cockroach in Australia.

Cockroaches are an important part of the natural environment providing a food source for other animals and in some cases playing an essential role in the breakdown of materials, like dead wood.

On a domestic front it is mainly the imported cockroaches which are a problem.

In a domestic situation or a commercial one like a food preparation business cockroaches are a problem because they can easily transfer bacteria and disease from one area to another, like your cutlery draw.

Like in their natural environments they also have a fondness for natural and organic materials so they can damage books, drapes and even wall paper.

You might be surprised to know that cockroaches share gut flora which is similar to that of termites.

Distribution


Cockroaches are found Australia Wide.

If you find a cockroach outside of a domestic situation it will nearly certainly be a native species.

Treatment Options


Treatment options fall under two categories, preventative treatments and curative treatments.

Preventative treatments are designed to help prevent an infestation from occurring in the first place and might be done an annual or quarterly basis depending on your needs. If you are treating a residential premise you might find an annual treatment is sufficient whereas if you are a restaurant then you may wish to treat on a more frequent basis.

Curative treatments are adopted when there is an infestation already occurring and would include chemical treatments which are aimed at killing the colony. Usually a curative treatment would be done in conjunction with a preventative treatment to help reinfestation.

If you are unsure which type of treatment you need you Pest Bully consultant can help and is only a phone call away.

Common Types


German Cockroach

Scientific Name

Blatella germanica

Overview

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Renowned for both their difficulty to treat and their global spread the German Cockroach is a formidable pest species. Don’t let their small size fool you, what they lack in stature they make up for in their ability to reproduce. One female German cockroach can produce as many as 20,000 young annually. Which if you imagine those young also being able to reproduce you get some pretty scary numbers.

German cockroaches are very sociable and are often found in large groups typically in areas that are warm and moist like kitchens or bathrooms.

Distribution

Australia Wide

Identification

German cockroaches grow to a maximum length of 1.5cm and are identifiable by both their size and two dark bands which run the length of their body.


Australian Cockroach

Scientific Name

Periplaneta australasiae

Overview

Australian Cockroaches are very similar is appearance to the American Cockroach however there are small differences in it's appearance, a yellow margin on the thorax and yellow streaks near the wing base.

It's name is misleading as it most likely originated from Africa. Not cold tolerant it is found in warmer climates although could most likely survive indoors in colder climates.

Here one second gone the next the Australian Cockroach is known for speed and ability to squeeze into tight spaces.

Distribution

East Coast of Australia

Identification

Australian cockroaches grow to a maximum length of approximately 3.5 cm. Easily confused with American cockroaches identification can be made by the yellow margin on the thorax and on the sides near the wing base.


American Cockroach

Scientific Name

Periplaneta americana

Overview

American Cockroaches are one of the largest cockroaches that you will find invading your home growing up to 4 cm in length. This size and the longer life cycle of the American cockroach means large infestations of this type of cockroach is not as common as other.

During warm weather events the adults are known to fly and often this is the first thing a property owner will know is when one fly's in through a window on a warm night.

Due to their size they are extremely fast.

Opportunistic feeders they will feed on most food stuffs but have a fondness of fermented products.

American cockroaches produce an odorous secretion, you have probably smelt it in an old book store. This secretion can affect the flavour of foods the cockroaches come into contact with. As with all cockroaches they can transfer bacterial diseases onto good food which can cause food poisoning.

Cockroach feces is known to cause asthma.

Distribution

Australia Wide

Identification

American cockroaches grow to a maximum length of approximately 4 cm. Easily confused with Australian cockroaches identification can be made by the lack of the yellow margin near the wing base. The rellow margin on the thorax is also less defined then on the Australian cockroach.


Oriental Cockroach

Scientific Name

Blatta orientalis

Overview

The Oriental cockroach is a mid size species of cockroach and has an appearance quiet distinct to other species. The male grows larger then the female to around 2.9cm and the female grows to around 2.7cm. On first inspection it appears that the female has no wings but on closer inspection she has two short useless wings.

They have a preference for wetter areas so are often found around drains.

While the Oriental cockroach will enter your home they are predominately found outside and have a strong preference to decaying material and wet conditions.

Distribution

Cooler areas of Australia

Identification

Very glossy black in appearance the Oriental cockroach can be identified most easily by the fact that it's wings only cover around two thirds of the abdomen of the males and the wings of the female are almost non existent.

The Male grows to 2.9 cm and the female to 2.7cm.