The Complete Guide to Eliminating Cockroaches at Home and in Business

Why cockroaches are more than just unpleasant

Cockroaches travel from drains, bins, and damp crevices into kitchens and dining areas, carrying bacteria such as Salmonella and E. coli on their bodies and legs. Their droppings and shed skins also trigger allergies and asthma, especially in children.

Because cockroaches breed quickly and hide during the day, seeing one in daylight often signals a population that is already large.

Common cockroach types

Two types are seen most in Indonesia, with different habits:

• German cockroach — small, breeds very fast, and dominates kitchens and food-prep areas.
• American cockroach — large, often comes up from drains and damp areas, and can fly short distances.

Signs of cockroaches

Check dark, damp areas for these signs:

• Tiny black specks (droppings) in drawer corners, cabinets, and behind appliances.
• A distinctive musty smell when the population is already large.
• Brown egg cases (oothecae) in hidden crevices.

Professional cockroach control methods

Effective control combines several targeted methods, not just surface spraying:

• Gel baiting at active points — cockroaches carry the active back to the colony for a colony-wide effect.
• Residual spray along the routes and crevices where cockroaches hide.
• Monitoring and re-visits to break the cycle of newly hatched eggs.

How to prevent cockroaches

Cleanliness and keeping areas dry are the keys to prevention:

• Clean up crumbs and spills immediately, especially in kitchens and dining areas.
• Seal gaps around pipes, sinks, and drains.
• Dispose of waste regularly and keep bins covered.