A German cockroach infestation means you could be waking up to the skitter of tiny feet across your kitchen floor. German cockroaches are notorious for their resilience and can infest your home in a very short time.
Understanding these pests is crucial to combating them; their rapid reproduction and adaptability make them formidable house guests.
In the following article, we’ll guide you through identifying signs of a German cockroach infestation, effectively removing these pests, and implementing strategies to ensure they don’t return.

3 Steps to Getting Rid of German Roaches:

1. Inspect your home, in particular kitchen, wet areas such as laundry and bathroom.
2. Sanitise and clean your home or commercial premises.
3. Get professional pest control help or use recommended roach control products.

Understanding German Cockies

These small cockroaches are stealthy intruders often found in residential and commercial settings. These pests love warm, humid environments, with a particular preference for kitchen and bathroom spaces. Recognisable by two distinctive black stripes behind their heads, these cockroaches are typically light brown and have a pair of wings, although they seldom fly.

Reproduction of Roaches:

One of the most alarming characteristics of German roaches is their rapid reproduction rate. A single female can spawn an egg capsule with around 25-45 eggs, leading to infestations quickly multiplying. Such egg production can happen every few weeks, giving rise to multiple generations within a single year.

Indicators of their presence are often quite conspicuous. Their droppings, which can look similar to black pepper or coffee grounds, are commonly spotted on countertop surfaces, near pet food and within kitchen cabinets and drawers, serving as a telltale sign of infestation.

german cockroach

Health Risks Associated with a German Cockroach Infestation

Health concerns associated with German cockroaches are non-trivial. These insects may contaminate surfaces and foodstuffs, potentially causing food poisoning. Furthermore, they can be vectors for bacteria that may result in stomach ailments and respiratory issues. Asthma attacks, too, have been linked to the allergens they spread.

Disease Transmission


These pests are known to carry bacteria that can lead to food contamination. Touching surfaces or consuming food tainted by cockroaches can result in diseases like salmonella, characterised by vomiting, diarrhea, and fever.

Asthma and Allergies

Individuals with asthma or allergies can experience exacerbated symptoms due to the allergens present in cockroach droppings, skin, and saliva. These allergens are powerful triggers for asthma attacks and allergic reactions, potentially requiring medical attention.

Pathogen Carriers

The capacity for these roaches to skitter through filthy environments allows them to collect and disperse a range of pathogens. Subsequently, these pathogens are deposited in areas where food is prepared or stored, raising the risk of contracting associated illnesses.

Pet Health

Not limited to human health, these pests can also adversely affect pets by transmitting diseases such as dysentery and typhoid fever, both of which can be serious for your furry companions.


Signs of Infestation

Recognising the signs of a German cockroach infestation is crucial for timely intervention and control. Key indicators include:

Foul Odour and Air Quality

The persistent and unpleasant odor produced by an infestation can trigger both allergies and asthma symptoms in sensitive individuals. Moreover, the air quality in living spaces may be compromised as these smells mingle with indoor air.

In dealing with an infestation, early detection and prompt action are paramount in preventing these health risks and maintaining a clean, safe home environment.

Roach Feces:

Cockroach excrement looks like ground pepper and is a good sign of infestation. This can also appear as dark stains or dark ink, depending on the surface.


How to Get Rid of German Cockroaches:

German cockroaches are notorious for their resilience and rapid reproduction, making them one of the most feared and stubborn pests to eradicate from homes. These pests thrive in warm, humid, indoor environments and gravitate towards kitchens and bathrooms due to the abundance of food and water. Thus, they require a proactive and comprehensive approach to removal.

Compared to the American Cockroach, the German Cockroach (Blattella germanica) is a lot smaller but often harder to eradicate. The larger American Cockroaches tend to prefer damp and warm areas such as sewers and waterways, they can also invade your home, especially basements and laundries. These larger roaches have the longest life cycle and a breeding cycle for female roaches lasting up to 600 days.

The first step to take when addressing a German cockroach infestation is a rigorous inspection. Identifying their hideouts is crucial; look for live roaches, cockroach eggs, fecal matter resembling black pepper, and their distinctive egg casings, known as oothecae. These signs are often found in warm, dark, and secluded areas, such as under kitchen appliances, trash cans, inside cabinets, near plumbing fixtures, electrical outlets and within cracks and crevices.

German Roach Control Methods:

Once their presence and breeding grounds have been established, a combination of sanitation and chemical treatments can be employed for effective control. Thorough cleaning of all surfaces is essential – this includes not only wiping down counters and sweeping floors but also getting into those hard-to-reach spots where roach activity is high. Clearing clutter and ensuring no food sources are readily available for these pests are further important measures, as is storing all leftover food in airtight containers.

Regular spring cleaning, including cleaning behind and under fridges and other large appliances is vital to avoid invasions and reinfestations by common roaches.

Roach Control to Reduce Infestation:

With sanitation efforts underway, incorporating baits and insecticide sprays becomes the next step. Bait stations, placed every 6 feet or so in areas where signs of roaches are evident, aid in reducing the population by attracting and poisoning the roaches. Effective bait products can be a good method for German cockroach control but are not always enough when dealing with a serious infestation. Complementing baits with residual insecticides can provide ongoing protection against new roaches attempting to establish themselves. Moreover, Insect Growth Regulators (IGR) can be used to interrupt the reproduction of roaches, thus curbing the birth of new generations.

german cockroach infestation

From time to time, you may find that a professional exterminator is required to ensure you remove infestations from any type of cockroach and provide ongoing maintenance and/or support to keep your German roach population at bay.

After a professional pest controller has removed the infestation, you can control the German roach population by using roach baits and a roach spray kit.
It is important to interrupt the roach growth cycle to avoid future infestations. Using a high quality roach bait in the home can help stop future reproduction of roaches in your home.

DIY Methods for Removing German Cockies

The battle against German cockroaches can be taken into your own hands with some perseverance and the right tactics. Start by declaring war on what attracts them – food scraps and moisture. Develop a regimented cleaning routine (especially kitchen appliances and kitchen counters) that focuses on eliminating any food crumbs and standing water. Surfaces should be wiped down meticulously, particularly in the kitchen and dining areas, to remove any residues that may be appealing to these pests.

Using Roach Gel and Spray Kits

To prevent German cockroaches from making themselves at home, target their preferred living spaces with Roach Gel and a German Roach Spray Kit. Repellent sprays can also be helpful.
These pests love warm, damp environments, so keep an eye on areas beneath sinks, around bathtubs, and inside kitchen cabinets. Regular inspections in these locations can help intercept any early signs of infestation. It is wise to clean and dry these areas rigorously and to remedy any leaks promptly to remove the moisture that German cockroaches find so inviting and clean up any roach feces and oval shaped egg cases.

Roach Baits and Traps

Setting up traps is another effective DIY measure. Sticky traps reveal high traffic zones for roaches, whereas bait stations with gel bait act as both a detective tool and a solution by attracting and then poisoning roaches. Remember to space bait stations appropriately, maintaining a six-foot distance between them to maximize coverage.

Lastly, consider applying residual insecticides in strategic locations. These potent formulations linger on surfaces to kill any roaches that come into contact with them long after the initial application. For heightened efficiency and safety, always follow the instructions provided by the manufacturer.

roach bait with dead cockroaches
Source: https://www.flickr.com/photos/usdagov/8456934578 License: CC2.0 | https://creativecommons.org/licenses/by/2.0/

Eco Friendly Cockroach Solutions:

Mixing baking soda and sugar is an effective way to get rid of a German roach infestation. Sugar will attract the roaches and the baking soda will kill them. Effective bait products laid around electrical appliances such as a fridge and oven helps to deal with hidden roaches.

It is well worth using baits and baking soda even after a professional exterminator has been through your home or office. Ongoing maintenance and treatment as part of your pest control plans can definitely help to keep a German roach population at bay.

Keep all food scraps in plastic containers that are well sealed.

Professional German Roach Control Options

When faced with a thriving German cockroach population, the expertise of a pest control professional can be invaluable. These knowledgeable individuals have access to an arsenal of pest control products, including baits, roach gel, insecticidal dusts, non repellent residual insecticide and German roach spray kits, to enact a full-scale assault on cockroach infestations.

Reputable pest management companies like South Sydney Pest Control provide extensive services with the convenience of customer support. These specialists often utilise an integrated pest management (IPM) strategy, placing an emphasis on baiting techniques as a primary method for chemical intervention. This prioritises both effectiveness and indoor environmental quality by reducing overall insecticide application and following environmentally friendly practices.

Professionals in the field possess the latest industry knowledge through continuous training, allowing them to tackle and deal with cockroach pest control with the most efficient and safe methods available. Pest control professionals assess each situation uniquely, customising treatment plans that may involve regular visits to monitor and maintain a roach-free home.
For ongoing cockroach pest control, many pest control companies offer treatments and maintenance contracts offering periodic service to keep roaches at bay on a monthly or quarterly basis. These contracts are not only convenient but essential for ensuring lasting results and peace of mind.

Contracts should have brief and digestible paragraphs. Consider integrating lists or tables if you decide to delve into more detailed specifics, such as a comparison of DIY and professional pest control methods or a schedule for pest management maintenance services.

Aerosol Sprays for German Roach Control

If you prefer to spray, using a roach spray kit is most effective. A combination of Advion WDG ( non repellent insecticide) and Tekko Pro IGR work well. Spray this into any cracks and crevices and then use something like Stryker 54 to flush out any cockroaches still hiding.

cockroach spray can

Seeing Dead Cockroaches?

If you’re seeing a dead roach lying around, it might not be the only one. It can even mean you have an infestation and requires further inspection. Check for any more dead roaches in your attic, basement, laundry and any small, dark and damp spaces.

Dead cockroaches can mean there are many more living ones hiding away. Dead roaches attract live roaches due to the scent in a chemical they release called oelic acid.

Health Problems Associated with Cockroach Infestation:

There are a number of health issues that are associated with roach infestation. These include:

Allergies: many people are allergic to roach excrement and the skins they shed. Allergens produced by cockroaches can lead to symptoms like congestion, sneezing, and watery eyes.
Serious bronchial inflammation, known as asthma, includes symptoms like frequent coughing, wheezing, and trouble breathing.

Children are especially prone to asthma caused by these allergens (particularly those residing in crowded living environments, where cockroach infestations tend to be more intense). Remember, even clean homes can be infested due to common walls with a neighbour who has an infestation or has recently had their infestation treated.

Correct sanitation measures and following sanitation recommendations will help to keep your home pest free. Sanitation and prevention measures are vital to maintain a healthy and roach free environment.

keeping kitchen clean from cockroaches

Preventing German Cockroach Infestation

Preventing German roach population growth is crucial to maintaining a clean and healthy living environment. A proactive approach to pest control can help to stop an infestation before it begins, saving homeowners the stress and difficulty of dealing with these persistent pests. Here are some key strategies to consider:

Seal Cracks and Crevices: Inspect your home for any potential entry points, such as cracks in walls, gaps around pipes, or openings in foundations, and seal them with appropriate materials. This reduces the number of places they can use to enter and prevents hiding roaches in your home.

Apply Non-Repellent Insecticides: Products like Alpine Cockroach Gel Bait or Advion Cockroach Gel and Advion WDG are effective because they are undetectable by cockroaches, leading to better pest control as the cockroaches unknowingly come into contact with them.

Incorporate Insect Growth Regulators (IGRs): Using products such as Novacide Aerosol can disrupt the reproductive cycle of German cockroaches, sterilising adults and hindering the development of eggs and nymphs.

Use Gel Baits: Advanced options like Savitri Roach Bait Gel or Vendetta Roach Bait Gel can yield quicker results in controlling German roach populations, especially when strategically placed in areas of high roach activity.

Regular Insecticide Sprays: Maintain long-term control of German cockroach populations by applying insecticides like Novacide Aerosol every 6 months to prevent future infestations. Remember, it must be a non repellent insecticide or it won’t be effective as the roaches will detect its presence.


Keeping Your Home Clean and Clutter-Free

A tidy home is a strong foundation in preventing a German cockroach infestation. By eliminating their food sources and hiding places, you can reduce the likelihood of these pests taking up residence and providing the favorable conditions roaches love. Here are some tips to follow:

  • Declutter: A clutter-free home gives fewer opportunities for cockroaches to hide. Regularly sort through and dispose of unnecessary items such as cardboard boxes and paper, which can provide shelter for cockroaches.
  • Vacuum: Make sure to vacuum food particles and remove any residue of food remaining on floors.
  • Disinfect Surfaces: Clean countertops, appliances, and floors with disinfectant to remove any food residue that might attract cockroaches.
  • Fix Leaks: Repair any leaky pipes and faucets as water attracts these pests. Keeping your home dry will make it less hospitable for them.
  • Airtight Food Storage: Store foodstuffs in sealing food containers to minimise the availability of food sources for German cockroaches.
  • Waste Management: Use trash cans with tight-fitting lids and take out the garbage regularly to avoid accumulation that’s attractive to cockroaches. Avoid leaf litter, cardboard boxes and used grocery bags being left around the home and yard.


German Roach Control & Sanitation Measures for Commercial Kitchens:

  • Clean all cafeteria counters, soda fountains and kitchen appliances to avoid a German roach infestation in commercial kitchens.
  • Electrical outlets should be protected and sealed.
  • Keep any leftovers in sealed food containers and avoid any residue of food remaining on any surface.
  • Check sanitation recommendations and follow correct sanitation and prevention measures for German roach control.
  • Avoid keeping indoor trash for long periods and keep trash dumpsters clean.
  • Ensure you have a regular maintenance plan from a professional pest control Sydney provider. They will provide product recommendation for ongoing prevention of future infestations.
  • Commercial kitchens should be dealt with differently to residential homes. Instead of using a high quality roach bait or sticky traps, it is recommended to use insecticide dusts, insecticides, roach gel and growth regulators.
  • Sanitation and prevention measures are particularly important in commercial kitchens and they are required to follow sanitation recommendations and requirements from their local health department.
  • As cockroaches are social insects, non repellent residual insecticides and insect growth regulators such as Tekko Pro or Tekko Trio Foam are most effective as IGR’s reduce female roaches ability to reproduce. This helps to keep your German roach population down. IGR’s can be used with both baits and insecticides without issue. Use Tekko Trio Foam as a spot, crack, crevice application and as an effective surface spray.
  • Cafeteria counters should be wiped and cleaned regularly, leaving no residue or food scraps for hiding roaches.
  • South Sydney Pest Control offers commercial pest control services for restaurants, cafes and all industrial and commercial premises.

german cockroach


Sealing Potential Entry Points in Your Home

German cockroaches are experts at squeezing through tiny spaces to infiltrate homes. Often, you might only see German roach droppings, dead cockroaches and the odd roach carcass to know that you have an infestation that must be dealt with during your German roach control program. To fortify your home against these intruders, attention must be paid to potential entry points:

  • Seal Interior and Exterior Gaps: Use caulk or another sealant to close gaps in countertops, baseboards, and around plumbing. Pay special attention to areas where walls meet floors and ceilings.
  • Check Windows and Doors: Make sure all windows and doors close properly. Replace any broken windows and install door sweeps to prevent cockroaches from slipping underneath.
  • Roof and Ventilation Maintenance: Inspect and repair any damage to the roof and ensure vents are covered with fine mesh to stop cockroaches from getting inside.
  • Indoor Trash: Keep your indoor trash covered and sealed and rubbish such as cardboard boxes should be dealt with so they don’t provide a dark, hiding space for roaches to breed.
  • Use Sealant and Duct Tape: In areas that are difficult to seal with caulk, use duct tape as a temporary fix until a more permanent solution is possible.
  • Sink Strainers: Placing strainers in your sink drains can prevent cockroaches from climbing up from the sewers or using any residual water as a resource.
  • Crevice Placement: Accurate dust placement is important but it’s not recommended to use liquid or dust repellents with a roach gel as they can contaminate them.

Implementing these roach control strategies and sanitation recommendations creates a strong first line of defense against German roaches, ensuring your home remains pest-free and comfortable.


© South Sydney Pest Control - All rights reserved