Practical Tips for DIY German Cockroach Control: How to Eliminate the Problem at Home

four practical tips for DIY German cockroach control that can help you combat these unwelcome invaders and prevent them from taking over your home.

German cockroaches are among the most common and persistent pests found in households across Western Australia. Known for their rapid reproduction and ability to hide in small cracks and crevices, these pests can quickly become a major problem if not dealt with effectively. While professional extermination services like ABI Pest Control are often the most reliable solution, there are steps you can take to address the issue on your own.

In this article, we provide four practical tips for DIY German cockroach control that can help you combat these unwelcome invaders and prevent them from taking over your home.

1. Identify and Eliminate Food and Water Sources

German cockroaches thrive in environments where food and water are easily accessible. One of the most effective ways to control them is by cutting off their access to these resources.

Steps to Take:

  • Keep kitchen areas clean: Regularly clean up crumbs, spills, and grease in your kitchen, especially around appliances like stoves, microwaves, and refrigerators. Make sure to clean underneath and behind appliances where food particles often accumulate.
  • Store food in airtight containers: Avoid leaving food out on counters and store items like cereals, grains, and pet food in sealed containers.
  • Empty bins regularly: Cockroaches are attracted to food waste, so it’s important to keep your bins clean and take out the trash frequently.
  • Fix water leaks: Cockroaches are attracted to moisture, so repair any leaking taps, pipes, or drains. Make sure to dry sinks, countertops, and bathroom areas after use, as even small puddles of water can attract these pests.

By reducing food and water availability, you create an environment less conducive to cockroach infestations.

2. Use Gel Bait and Cockroach Traps

Gel bait is one of the most effective tools for controlling German cockroach populations. Cockroaches consume the bait and return to their nests, spreading the poison to other members of the colony, including their young. Over time, this can significantly reduce the number of cockroaches in your home.

Steps to Take:

  • Apply gel bait in key areas: Focus on areas where cockroaches are most likely to hide, such as under sinks, inside cupboards, behind appliances, and in dark, damp corners. Apply small amounts of gel bait near these locations, but avoid placing it in areas where food is prepared or stored.
  • Place cockroach traps: Use sticky cockroach traps to monitor and catch cockroaches. Place traps along walls, near baseboards, and in areas where you’ve noticed cockroach activity. This will help you gauge the severity of the infestation and identify high-traffic areas that need further treatment.

Gel bait and traps work best when used in conjunction with other methods, as they help target both active cockroaches and the nests they hide in.

3. Seal Cracks and Crevices

German cockroaches are experts at squeezing into the smallest spaces, using cracks and crevices to access food, water, and shelter. Sealing entry points and hiding spots is essential for long-term control.

Steps to Take:

  • Inspect your home for entry points: Check around doors, windows, baseboards, plumbing, and electrical outlets for gaps or cracks that cockroaches can use to enter or hide. Don’t forget to check under sinks, behind appliances, and in storage areas.
  • Use caulk or sealant: Seal any gaps or cracks with caulk or other appropriate sealants. Pay special attention to areas where pipes or wires enter walls, as these are common cockroach entry points.
  • Install door sweeps: To prevent cockroaches from slipping under doors, install door sweeps or weather stripping to close any gaps.

By sealing off potential hiding spots, you make it harder for cockroaches to find shelter and breed in your home.

4. Maintain Regular Cleaning and Decluttering Habits

German cockroaches are most comfortable in cluttered, poorly maintained environments. Keeping your home clean and organized is key to preventing infestations from worsening.

Steps to Take:

  • Vacuum regularly: Vacuum floors, carpets, and hard-to-reach areas like under furniture and appliances. This helps remove food crumbs, cockroach eggs, and dead cockroaches, which can attract more pests.
  • Declutter storage areas: Reduce clutter in areas like basements, attics, closets, and garages, where cockroaches are likely to hide. Cardboard boxes and piles of paper are ideal hiding spots for these pests, so replace them with plastic storage bins.
  • Clean drains and garbage disposal: Food residue can build up in drains and garbage disposals, providing a food source for cockroaches. Regularly clean these areas with a brush and a cleaning solution to prevent buildup.

Consistency is key when it comes to preventing cockroach infestations. Even after an infestation is under control, maintaining these habits will help keep cockroaches from returning.

Final Thoughts: When to Call a Professional

While these DIY tips can help you reduce and manage a German cockroach infestation, severe or recurring infestations often require professional intervention. German cockroaches reproduce quickly, and DIY methods may not always reach their nests in hard-to-access areas. If your infestation persists despite your best efforts, contacting a pest control company like ABI Pest Control is the best way to ensure a thorough and effective solution.

At ABI Pest Control, we provide expert German cockroach control services tailored to the unique needs of homeowners in Western Australia. Our experienced technicians use industry-leading techniques to eliminate cockroach infestations and prevent future problems.

Don’t let cockroaches take over your home—contact us today for a comprehensive inspection and professional pest control services.


This article provides practical, actionable tips for homeowners dealing with German cockroach infestations, while also positioning professional services as a necessary step for more severe cases.