Earwigs in Southern Maine:
Identification, Prevention, and Control
Earwigs are a common sight throughout Southern Maine, especially in the damp basements, crawl spaces, and gardens of older homes in Biddeford and Saco. These reddish-brown insects with pincers at the rear often hide in moist, dark areas and occasionally wander indoors at night. If you see them scurrying across bathroom floors or clustered in cracks near the foundation, get your free inspection today.
What Are Earwigs?
Earwigs (Forficula auricularia), also known as the European earwig, are ½- to ¾-inch-long insects with reddish-brown bodies, short wing covers, and prominent forceps-like pincers at the end of the abdomen. The pincers are used for defense and folding their wings, not for harming people.
They prefer cool, moist, dark places and feed on a wide variety of organic matter including decaying plants, small insects, and garden crops. They do not breed indoors in large numbers and cause no structural damage. In Southern Maine they are most noticeable in late summer and fall when they seek shelter in homes as outdoor conditions become drier. For detailed local identification see the Maine DACF Got Pests – Earwigs factsheet.
Signs of Infestation
These clues usually appear first in damp basements, crawl spaces, bathrooms, or garden areas.
- Reddish-brown insects with pincers scurrying across floors or up walls at night
- Clusters of earwigs in cracks, crevices, or under mulch near foundations
- Small dark droppings or stains near baseboards and in corners
- Presence in bathtubs, sinks, or showers where they become trapped
- Damaged seedling plants or flowers in gardens with chewed edges
- Earwigs hiding under flower pots, rocks, or wooden debris
- Increased sightings after rain or in very humid weather
- Small holes or gaps where earwigs enter from the exterior
In Shapleigh and Newfield homes these signs often increase in late summer and early fall when earwigs seek moisture and shelter.
Risks in Southern Maine
In our humid coastal climate earwigs thrive in damp basements and crawl spaces of older homes, where they can become a startling nuisance when they appear suddenly indoors. They cause minor damage to garden plants and flowers outdoors but do not bite dangerously, sting, or transmit disease to people. Their pincers may look intimidating but are harmless to humans.
Older homes with poor drainage and heavy mulch near the foundation are especially vulnerable. My low-impact approach follows best practices from the University of Maine Home & Garden IPM – Earwigs and focuses on safe, targeted solutions for local conditions.
Prevention Tips
Simple exclusion and moisture control steps protect your home in Southern Maine.
- Seal cracks around windows, doors, foundations, and pipes with caulk
- Install or repair tight-fitting screens on windows and doors
- Reduce humidity with dehumidifiers in basements and crawl spaces
- Fix leaking pipes and improve drainage around the foundation
- Clear mulch, leaf litter, and debris at least 12 inches from the house
- Store firewood, flower pots, and garden debris away from the foundation
- Inspect and seal gaps in soffits, vents, and crawl space access
- Vacuum earwigs indoors and dispose in a sealed outdoor trash bag
These steps prove especially effective in Casco and Raymond homes with damp foundations and heavy landscaping.
Professional Treatment
When prevention is not enough I provide targeted, low-impact control. I locate active entry points and harborage areas in basements, crawl spaces, and gardens. Treatments are customized for each property. A single family home in Biddeford may need different focus than a business in Saco. I handle the entire process myself from start to finish.
Learn more about my background and methods on the About page. Contact me today to schedule your free inspection on the Contact page.
Frequently Asked Questions
They crawl through gaps as small as 1/8 inch around foundations, windows, doors, and pipes, especially in damp areas.
They can occasionally pinch with their pincers if handled, but the pinch is harmless and they do not breed indoors in large numbers.
Reducing moisture and hiding spots usually causes them to leave, but exclusion prevents recurring problems.
Related Resources
- Find detailed identification and biology from the Maine DACF Got Pests – Earwigs factsheet
- Read comprehensive management tips from the University of Maine Home & Garden IPM – Earwigs
Why Choose Precision Pest Control?
Your local solo specialist, I offer customized, low-impact pest control fitted to Southern Maine challenges for homes and businesses. Protect your property today. Reach out for your free inspection.