Identification
Earwigs are elongated, dark brown to reddish-black insects measuring about 1/2 to 1 inch in length. They have long, slender antennae and prominent pincers (cerci) at the rear of their abdomen. Males have more curved pincers than females. Some species have functional wings, but they rarely fly.
Lifecycle & Reproduction
Earwigs undergo incomplete metamorphosis, developing from egg to nymph to adult. Females lay 30 to 50 eggs in soil or decaying plant matter. Nymphs resemble smaller versions of adults and molt several times before reaching maturity. Adults can live for about a year.
Habits, Diet & Behavior
Earwigs are nocturnal and seek out moist, dark environments. They feed on decaying plant material, fungi, insects, and occasionally soft fruits. Despite their intimidating pincers, they do not pose a threat to humans and rarely pinch unless handled.
Where You’ll Find Them / Typical Locations
Earwigs prefer damp, sheltered environments, commonly found:
- Under rocks, mulch, and decaying wood
- Inside potted plants and garden debris
- Around sinks, bathrooms, and basements
- In compost heaps and leaf piles
- Under outdoor furniture and patio areas
Threats & Danger
Earwigs do not spread disease or cause structural damage, but they can be a nuisance when they invade homes. They may damage soft fruits, seedlings, and flowers in gardens. While their pincers look menacing, they pose no serious threat to humans or pets.
Prevention
- Reduce moisture around the home by fixing leaks and improving drainage
- Remove organic debris such as leaves, mulch, and woodpiles
- Seal cracks and crevices around doors, windows, and foundations
- Use dehumidifiers in basements and crawl spaces
- Keep outdoor lighting minimal to avoid attracting earwigs
Signs of Infestation
- Sightings of earwigs in damp, dark areas
- Presence of small holes or chewed leaves on garden plants
- Accumulation of earwigs under mulch, logs, or flower pots
- Earwigs appearing in bathrooms or basements during wet weather
- Small clusters of eggs in soil or decaying organic material
How to Get Rid of It
- Use traps such as rolled-up newspapers or shallow dishes of oil to capture earwigs
- Apply insecticidal dust or diatomaceous earth around entry points
- Reduce outdoor lighting to minimize insect attraction
- Remove clutter and organic debris from outdoor spaces
- Seek professional pest control assistance for severe infestations