Signs of a cockroach infestation you should never ignore

Cockroaches are one of the most adaptable and resilient species on our planet. They have survived for 140 million years! Able to thrive in the most inhospitable conditions, cockroaches are more than just an unsightly nuisance; they trigger asthma and spread harmful illnesses like gastroentiritis and cholera. Left unchecked, one or two cockroaches can quickly turn into a full-blown infestation. Recognising the signs of cockroach activity is crucial for timely intervention.

1. Cockroach Droppings

One of the most noticeable signs of a cockroach problem is their droppings. With most species, these can appear as small, black specks resembling coffee grounds or cylindrical pellets and you’re most likely to find them in kitchen cabinets, behind appliances like refrigerators and stoves, in dark corners or below sinks and pipes. Use caution if cleaning areas where cockroach droppings have been spotted. They carry harmful bacteria like E. coli and salmonella, which pose health risks to humans. Calling in pest professionals for a thorough disinfection will ensure proper treatment of any infected areas.

2. Egg Cases (Oothecae)

Cockroach egg cases, known as oothecae, are a clear sign that cockroaches are actively reproducing in the property and the infestation could escalate rapidly without professional intervention. These oval-shaped capsules are typically brown or dark in color and can contain up to 50 eggs.They are usually found in dark or hidden areas such as behind furniture, in cracks and crevices, inside cardboard boxes or paper bags.

3. Shed Skins

As cockroaches grow, they molt, shedding their outer exoskeleton multiple times during their lifecycle. These translucent skins are often left behind in areas where cockroaches hide or travel such as under sinks, among storage boxes and near baseboards. Finding shed skins suggests that cockroaches have been present for some time, indicating a well-established infestation that requires professional intervention.

4. Unpleasant, Musty Odors

Cockroaches produce a distinct, musty smell that becomes more pronounced as their numbers grow. This odor comes from pheromones they release to communicate among one another. Their droppings and shed skin also emit a similar musty scent. This strong, distinct odor is another sign of an advanced infestation which requires immediate action.

5. Live Cockroaches

Spotting a live cockroach, particularly during the day, is a significant warning sign. Because cockroaches are nocturnal and typically hide during daylight hours, seeing one out in the open, indicates overcrowding in their hiding spots – a concerning stage of heightened infestation.

6. Grease Smears and Tracks

Cockroaches leave behind greasy, dark smears as they move across surfaces and these are especially noticeable along walls and baseboards, on countertops and near food or water sources. These smears pose a greater issue than simply indicating cockroach activity. They contaminate surfaces, posing a hygiene risk in kitchens and food preparation areas.

Acting at the earliest signs of a cockroach infestation can save you from more extensive intervention in the future. A few simple steps property owners can take involve:

• Inspecting their property regularly, keeping an eye out for the signs mentioned above.

• Maintaining a clean and hygienic site by ensuring counters and floors are always clean, food is stored away properly and garbage is secure.

• Sealing potential entry points such as gaps around piping, electricals, doors and windows.

• Hiring a professional pest control company, like Rentokil Initial, to treat the source of the problem more effectively.

At Rentokil Initial, our experts are trained to identify early warning signs, assess the extent of the problem, and implement safe, effective treatments. By incorporating innovative solutions and environmentally responsible practices, we ensure long-term prevention and peace of mind.

Think you have a cockroach problem?

If you think you have spotted the signs of an infestation, call our cockroach specialists.

Our team of experts have extensive local experience and are trained monthly on the very best technologies and processes for cockroach control. 

Call us on 242 322 2157 or contact us online and we’ll contact you within 24 hours to help you control cockroaches in your residential or business premises.