Cockroaches

cockroach CPM

Cockroaches are one of the main and most well-known pests worldwide, belonging to the insect order Blattodea of which there are 400 species native to Australia. These pests are attracted to warm, humid, and moist environments as well as feed on almost any foods accessible such as vegetable scraps, meat materials and even paper and fabric. 

Some of the most commonly seen cockroaches seen in Australian homes are: 

German cockroaches 

Size: 1.5cm 

Colour: brown with two dark parallel streaks running from the head to base of wings 

German cockroaches like warm and moist areas with high humidity, therefore they are commonly found in kitchen under sinks and in bathrooms. 

American cockroaches 

Size: 4cm 

Colour: reddish-brown with a pale-yellow border 

Commonly found in basements, bathrooms, laundry rooms, and kitchens, as they prefer dark, moist, and warm areas. They feed on decaying organic matter, which includes paper and clothing.  

Brown-banded cockroaches 

Size: 1.5cm 

Colour: pale glossy brown with two light-coloured bands around base of their wings 

This species prefers dry conditions compared to other cockroaches, therefore found in bedrooms, closets and inside electrical equipment. 

Smokybrown cockroaches 

Size: 3cm 

Colour: shiny dark brown-black

Known to be found around damp and dark environments, as they are prone to losing moisture through their cuticles. 

Australian cockroaches 

Size: 3-4cm 

Colour: dark brown 

Australian cockroaches feed on plants unlike many other cockroaches, they are commonly found in outdoor tropical environments and can sometimes be seen in roof voids and subfloors if they move indoors. 

Knowing if you have cockroaches is the first step in identifying if your home is experiencing an infestation, see Civil Pest Managements checklist of things to look out for:

  1. Droppings – usually looks like black dust
  2. Egg capsules – these are brown in colour, this indicates there are many cockroaches in your home 
  3. Foul or unusual odour – this odour is must and oily, coming from the cockroach droppings 
  4. Shed skin – vary in size depending on the cockroach 
  5. Seeing live cockroaches!