Cockroach control

Controlling cockroaches in kitchens, homes, restaurants, hotels, offices and other business premises

Cockroaches inhabit the human habitat for survival and nourishment. The most common cockroaches are the German cockroach, the American cockroach, the oriental cockroach and the Australian cockroach. In general, the approaches for control are similar for all the species


Where cockroaches hide

  • Under the refrigerator
  • Under the microwave
  • Under the TV and the entertainment system
  • Under mattresses and
  • Under seat cushions

These are also the preferred egg laying areas. Other areas where you are likely to find cockroach eggs are

  • At the rubber around the refrigerator doors (i.e door gasket) and
  • On shelves that are difficult to reach (usually the high ones).


Check all the areas above and pay special emphasis to the refrigerator rubber and the higher shelves and surfaces


Cockroach Pest species

There are many species of cockroaches. The common species that are pests include

·         American cockroach (Periplaneta Americana)

·         German cockroach (Blattella germanica)

·         Asian cockroach (Blattella asahinai)

·         Oriental cockroach (Blatta orientalis)

In Kenya, the common ones are the American Cockroach and the German cockroach with the American cockroach being the larger one (about 30mm long) and the German cockroach being the commonly seen small ones (about 15mm long) as adults.

Control of cockroaches


Hygiene is the best method. However, this is the most difficult to achieve as a result of the influence of the external environment. Whilst your place could be clean, your surroundings and neighbors may not be as clean as you are. Again, sewerage lines and plumbing lines are usually interconnected. This provides a route though which the cockroaches move from one place to the other, regardless of the hygiene standards of the place in question. Hygiene is still very important in discouraging the cockroaches from foraging in your kitchen, house, restaurant, office or business premises

Other methods of control include

Where infestation is heavy other control methods must be considered, these usually involve the application of insecticides in form of

·         Spraying or fumigation

  • Contact spraying
  • Indoor Residual spraying

·         Application of baits in form of gels, powders, or pastes

·         Use of insecticidal chalks

Do it yourself (DIY) techniques

One can purchase a suitable insecticide and apply using any of the above methods. However, the impact may be unsatisfactory because of the following.

·         Choice of the product to use. Cockroaches have become resistant to the most commonly used pesticides. As such, the “do it yourself” approach can in some instances lead to unsatisfactory results

·         Targeting the pests effectively. Effective targeting of the pests means targeting them where they are, when they are most vulnerable and targeting the right stage in the life cycle

·         Equipment: The application equipment should be able to provide sufficient coverage for the intended purpose. In general, small hand pumps are not suitable for heavy infestation

·         The need to guarantee health, safety and environmental concerns.  When fumigating or carrying out pest control at home, ensure that the safety of people, pets and the environment is not compromised.

·         Lack of time. For busy persons, own pest control can be difficult.

Should you decide to do it yourself

·         Keep pesticide containers and pesticides away from people especially children
·         Keep pesticide and pesticide containers away from food and water
·         Triple rinse all empty pesticide containers and dispose of in a licensed facility
·         Follow the label instructions

If in doubt, please consult Asepsis Ltd on for advice.







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