Pest Control - Cockroaches

Note: Adur & Worthing Councils do not offer a pest control service. This page is to offer advice and information only. Please see our pest control homepage for how to find a pest control service.


What are cockroaches?

Cockroaches are large insects which range in size from 10-23mm in length, they have long whip-like antennae and two pairs of wings. The two most commonly found species are:

  • The Oriental Cockroach
  • The German Cockroach

They can be distinguished by their size and colour. The Oriental Cockroach is larger and darker brown. The German Cockroach unlike the Oriental variety is able to climb smooth vertical surfaces.

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Are they a health hazard?

Cockroaches carry food poisoning germs on their bodies and are responsible for the spread of dysentery and gastro-enteritis.

They will feed on almost anything including faecal matter and food for human consumption.

Contamination will occur when the insect comes into contact with food or work surfaces or through faecal contamination of food stuffs. 

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How will I know I have them?

Cockroaches can be found in premises where food is stored or handled.

They are nocturnal insects and will spend most of the day hiding in cracks and around drains and service ducting.

Infestations may be introduced into premises in laundry and food deliveries.

The female Cockroach produces up to eight purse-like egg cases at monthly intervals. The egg cases are thick walled and are 6-12 mm in length and may contain up to 30 eggs. The German Cockroach nymphs hatch from their eggs in 2-4 weeks and those of the Oriental cockroach in 6-12 weeks.

The nymphs are similar in appearance to the adult but smaller. As the nymph develops and grows it moults. This usually occurs 5-10 times during its development which may take up to two years to complete until the insect reaches maturity. The life cycle is complete in a further four months for Oriental Cockroaches and nine months for the German cockroach.

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How do I deal with an infestation?

You will need professional help in treating a Cockroach infestation.

All pesticides are applied by our qualified and experienced staff to ensure the safety of the public and to minimise damage to the environment.

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Page last updated: 03 April 2024

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