Press ESC to close

Your Ultimate Guide to Conquering Pests and Regaining Control

How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements?

Are pesky earwigs invading your crawl spaces or basements? If you’re tired of finding these creepy crawlies in your home, you’re in the right place. In this article, we’ll explore effective methods to prevent earwigs from nesting in these areas. Don’t worry, we’ve got you covered with some friendly tips and tricks that will help you reclaim your space and ensure a bug-free environment.

How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements?

Learn more about the How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements? here.

Inspecting the Area

Identify entry points

When it comes to preventing earwigs from nesting in crawl spaces or basements, the first step is to thoroughly inspect the area. Look for any potential entry points where the pesky critters could be gaining access to your home. Common entry points include gaps and cracks in the foundation, damaged screens, and open vents. By identifying these entry points, you can take the necessary steps to seal them off and prevent earwigs from entering.

Check for moisture

Earwigs are attracted to moisture, so it’s important to check for any signs of excess moisture in your crawl spaces or basements. Look for leaks or standing water that could be attracting these insects. Addressing any moisture issues will not only help prevent earwig infestations but also contribute to the overall health and safety of your home.

Look for hiding spots

Earwigs are nocturnal insects that seek out dark and damp hiding spots during the day. When inspecting your crawl spaces or basements, take note of any areas that could serve as potential hiding spots for these pests. This could include cluttered storage areas, piles of debris, or overgrown vegetation. By identifying and eliminating these hiding spots, you can reduce the chances of earwigs finding a cozy home in your crawl spaces or basements.

Examine for existing infestations

During your inspection, be on the lookout for signs of existing earwig infestations. Look for live earwigs, their shed exoskeletons, or their brown, pincer-like appendages called cerci. If you notice any of these signs, it’s important to address the infestation promptly to prevent further damage and minimize the risk of future infestations.

Sealing Entry Points

Fill gaps and cracks

One effective way to prevent earwigs from nesting in your crawl spaces or basements is to seal off any gaps and cracks in the foundation or walls. These small openings can serve as convenient entry points for the insects. Use a quality silicone-based caulk or foam insulation to fill in these gaps, creating a barrier that earwigs cannot penetrate easily.

Install door sweeps

Another common entry point for earwigs is under doors with noticeable gaps. By installing door sweeps, you can create a tight seal at the bottom of the door, preventing earwigs from crawling in. Choose door sweeps made of durable materials like rubber or bristles, which will effectively keep out not only earwigs but also other unwanted pests.

Use weatherstripping

For windows and other areas with potential gaps, weatherstripping is an excellent solution. Weatherstripping is a sealant that is applied to the edges of windows and doors to prevent drafts and seal gaps effectively. By using weatherstripping, you can create a barrier that both insulates your home and keeps unwanted insects like earwigs out.

Repair damaged screens

Screens that have small tears or holes can provide easy access for earwigs. Inspect your crawl space or basement windows, and if you notice any damaged screens, take the time to repair or replace them. This simple maintenance task can significantly reduce the chances of earwigs finding their way into your home.

Close vents

While ventilation is essential, it’s also important to ensure that vents leading into your crawl spaces or basements have proper covers or screens. These covers should be in good condition and securely fastened to prevent earwigs from entering through the vents. Regularly inspect and maintain these covers to ensure they are functioning effectively.

Click to view the How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements?.

Reducing Moisture

Fix leaky pipes

One of the most important steps in preventing earwigs from nesting in crawl spaces or basements is addressing any plumbing issues. Leaky pipes provide a water source that attracts earwigs and other pests. Inspect your plumbing system regularly and fix any leaks promptly. This not only helps prevent earwigs but also protects your home from potential water damage.

Address drainage issues

Poor drainage around your home can lead to excess moisture, creating an ideal environment for earwigs. Ensure that your gutters are clear of debris and properly directing water away from the foundation. If necessary, consider grading the ground around your home to ensure that water flows away from the house. By addressing drainage issues, you can significantly reduce the moisture levels and discourage earwigs from making themselves at home.

Control humidity levels

The overall humidity levels in your crawl spaces and basements can also impact the likelihood of earwig infestations. Use dehumidifiers or fans to regulate the humidity, reducing the moisture levels to discourage earwigs from nesting. Keeping humidity levels below 50 percent is generally recommended to create an environment less favorable for these pests.

Increase ventilation

Proper ventilation is crucial in preventing earwigs from colonizing your crawl spaces or basements. Ensure that these areas have sufficient airflow by using fans or opening windows when possible. Good ventilation helps to keep the air circulating, reducing excess moisture and making your crawl spaces or basements less attractive to earwigs.

Eliminating Hiding Spots

Remove clutter

Cluttered spaces provide ideal hiding spots for earwigs. Take the time to declutter your crawl spaces or basements, removing unnecessary items and organizing what remains. By eliminating clutter, you reduce the number of potential hiding spots for earwigs and make it easier to inspect the area regularly for any signs of infestation.

Organize storage areas

If you use your crawl spaces or basements for storage, it’s essential to keep these areas organized. Use shelves, bins, or storage containers to keep items off the floor and neatly arranged. This not only makes it easier to access your belongings but also eliminates potential hiding spots for earwigs.

Clean up debris and vegetation

Remove any debris, such as fallen leaves or dead plants, from around the exterior of your home. These items can attract earwigs and create favorable conditions for infestation. Regularly clean up and maintain the outdoor areas surrounding your crawl spaces or basements to reduce the likelihood of earwigs taking up residence.

Trim tree branches and shrubs

Overhanging tree branches and dense shrubs can provide a bridge for earwigs to access your crawl spaces or basements. Keep vegetation trimmed away from the exterior of your home, creating a clear barrier that earwigs cannot easily traverse. Regular pruning ensures that branches and shrubs do not come into contact with your house and eliminates potential entry points.

Clear out woodpiles

Woodpiles in close proximity to your crawl spaces or basements can attract earwigs, as they provide both shelter and a potential food source. To prevent earwig infestations, store firewood away from your home’s exterior, ideally at least 20 feet away. This distance helps keep earwigs from easily migrating from the woodpile to your crawl spaces or basements.

How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements?

Natural Repellents

Diatomaceous earth

Diatomaceous earth is a natural, powder-like substance that can effectively repel earwigs. It works by disrupting the waxy protective layer on the insects’ exoskeleton, causing them to dehydrate and die. Sprinkle diatomaceous earth in areas where you suspect or have noticed earwig activity, paying particular attention to cracks and crevices.

Boric acid

Boric acid is another natural remedy that provides an effective barrier against earwigs. It acts as a stomach poison when ingested, leading to the demise of these pests. Use caution when using boric acid and follow the instructions provided to ensure its safe and effective use.

Essential oils

Certain essential oils, such as lavender, peppermint, and citrus oils, can repel earwigs due to their strong scents. Create a natural repellent spray by diluting a few drops of essential oil in water and applying it to areas where earwigs congregate or gain entry. Repeat this process regularly to maintain its efficacy.

Cedar oil

Cedar oil is known for its insect-repellent properties. Its strong aroma acts as a deterrent to earwigs and other pests. Spray cedar oil around potential entry points or areas where earwigs are commonly found to keep them at bay. As with any essential oil, exercise caution and follow the recommended usage instructions.

Food-grade DE

Food-grade diatomaceous earth (DE) is a safe and non-toxic option for preventing earwigs. Use a hand duster to apply a thin layer of DE to areas prone to earwig activity, such as cracks, crevices, and hiding spots. The microscopic particles in DE will dehydrate and ultimately kill earwigs upon contact.

Non-toxic traps

Non-toxic traps can also be effective in capturing and eliminating earwigs. These traps typically use a sticky substance or an attractant to lure the insects, trapping them inside. Place these traps near areas where earwigs are likely to gather, such as entry points or hiding spots. Regularly check and replace the traps as needed.

Chemical Control

Insecticides for spot treatment

If natural repellents and preventative measures have not successfully deterred earwigs, spot treatments with insecticides may be necessary. Choose an insecticide specifically formulated for earwigs and follow the instructions provided. Use these treatments sparingly and only on localized areas to minimize any potential environmental impact.

Residual insecticides for barrier application

Residual insecticides are designed to provide long-lasting protection against earwigs and other pests. They are typically applied around the perimeter of your home’s foundation, creating a barrier that repels earwigs. Follow the instructions provided by the manufacturer when applying these insecticides to ensure their safe and effective use.

Dust formulations for crevices

Dust formulations are particularly effective for treating hidden crevices and cracks where earwigs may be hiding. These formulations release insecticidal particles, which adhere to the insects as they pass through. Apply these dusts to crevices, gaps, and other areas where earwigs are likely to travel.

Seek professional pest control services

If your efforts to control or prevent earwig infestations have been unsuccessful, it may be time to seek the assistance of a professional pest control service. Professional exterminators have the knowledge, experience, and specialized tools to effectively eliminate earwigs from your crawl spaces or basements. They can assess the severity of the infestation and recommend the most appropriate treatment options.

How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements?

Maintaining Cleanliness

Regular cleaning routines

Maintaining a clean and tidy environment in your crawl spaces or basements is crucial for preventing earwig infestations. Establish regular cleaning routines to remove debris, dust, and other organic matter that may attract these pests. Clean all surfaces and inspect for any signs of earwig activity during your cleaning sessions.


Regular vacuuming is an effective way to remove earwigs, their eggs, and other debris from your crawl spaces or basements. Use a vacuum cleaner with a powerful suction and a narrow nozzle attachment to reach into crevices and corners where earwigs may be hiding. Empty the vacuum bag or canister after each use to dispose of any captured earwigs.


Sweeping your crawl spaces or basements helps to eliminate loose debris and discourage earwigs from nesting. Use a broom to sweep thoroughly, paying close attention to corners, crevices, and other potential hiding spots. Dispose of the sweepings in a sealed bag or container to prevent reinfestation.


Mopping your crawl spaces or basements with a suitable floor cleaner can help eliminate any odor trails or attractants that earwigs may be following. Use a damp mop or steam mop to thoroughly clean the floors. Avoid using excessive water, as this can contribute to moisture problems if not properly dried.

Removing food sources

Earwigs are attracted to food sources, including crumbs, spilled liquids, and even pet food left out overnight. It’s essential to remove these food sources from your crawl spaces or basements to discourage earwigs from taking up residence. Regularly clean up spills, promptly store food, and ensure pet food is removed after feeding time.

Using Light Traps

Install outdoor lights away from entrances

Earwigs are attracted to light, so it’s important to position outdoor lights away from entrances and openings to crawl spaces or basements. These lights can act as a beacon, drawing earwigs towards your home. By moving the lights further away, you can reduce the chances of earwigs finding their way inside.

Place sticky traps near light sources

Sticky traps are a useful tool for capturing and eliminating earwigs that are attracted to light sources. Place these traps near outdoor lights or other areas where earwigs gather. The sticky surface of the traps will trap the insects, preventing them from entering your crawl spaces or basements.

Empty and replace traps regularly

To maintain the effectiveness of light traps, it’s important to regularly empty and replace them. Once a trap has captured a significant number of earwigs, dispose of it in a sealed bag or container. Replace the trap with a fresh one to continue capturing any remaining earwigs and prevent new ones from entering your home.

Seeking Professional Help

Contact a licensed exterminator

If you have tried various preventative measures and are still experiencing persistent earwig infestations in your crawl spaces or basements, it may be time to contact a licensed exterminator. These professionals have the expertise and specialized tools to effectively assess and address your earwig problem.

Discuss infestation severity

When consulting with a professional exterminator, be prepared to discuss the severity of the earwig infestation. Provide as much information as possible about the signs, symptoms, and areas where you have noticed earwigs. This information will help the exterminator develop an appropriate treatment plan tailored to your specific situation.

Consider professional prevention services

In addition to eradication methods, professional exterminators may also offer preventative services to help safeguard your crawl spaces or basements from future earwig infestations. These services may include ongoing inspections, treatments, and advice on how to maintain an environment that discourages earwigs from nesting.

Implementing Preventative Measures

Create a maintenance plan

To effectively prevent earwigs from nesting in your crawl spaces or basements, it’s important to create a maintenance plan. This plan should outline regular inspections, cleaning routines, and other preventative measures. By establishing a consistent schedule, you can stay on top of earwig prevention and minimize the risk of infestation.

Regularly inspect and address issues

Consistent inspections are vital in detecting early signs of earwig activity and addressing any issues promptly. Set aside time to inspect your crawl spaces or basements, paying close attention to entry points, moisture levels, and potential hiding spots. By identifying and addressing issues early on, you can prevent earwig infestations from taking hold.

Educate household members

Keeping everyone in your household informed and educated about earwig prevention is essential for overall success. Teach household members about the signs of infestations, the importance of cleanliness, and the proper maintenance routines to follow. Encourage them to spot and report any potential issues, fostering a team effort in preventing earwigs from nesting.

Monitor results and adapt strategies

As you implement preventative measures, it’s important to monitor their effectiveness and make necessary adjustments. Keep track of any changes in earwig activity and assess the success of the implemented prevention strategies. If certain measures are not producing the desired results, consider alternative methods or seek professional advice to enhance your prevention efforts.

By following these comprehensive steps, you can greatly reduce the likelihood of earwigs nesting in your crawl spaces or basements. Remember, prevention is key when it comes to controlling pests, and a proactive approach will help keep your home free from unwanted intruders.

Get your own How Do I Prevent Earwigs From Nesting In Crawl Spaces Or Basements? today.


Hi, I'm Pest Control, the author behind Bug Masters Online. My mission is to provide you with the ultimate guide to conquering pests and regaining control of your space. At Bug Masters Online, we understand the importance of maintaining a pest-free environment in your home or business. That's why we offer a comprehensive range of products that tackle pest infestations head-on. Our website is not just a place to purchase products – it's a hub of knowledge where you can learn about different pests, their behaviors, habitats, and effective prevention strategies. With our carefully curated selection of products, you can say goodbye to frustrating flies and pesky mice. Let's put an end to your pest problems together.