Pest Lirbary

Earwigs

What are Earwigs?

Earwigs (Forficula auricularia) are small, nocturnal insects commonly found in Utah that can become garden and household pests. Measuring about 1/2 to 1 inch long, they have elongated, dark brown to black bodies with distinctive forcep-like pincers (cerci) at the end of their abdomens. Earwigs are mostly active at night, feeding on a variety of plants, flowers, fruits, and occasionally small insects. While they can help by eating other pests, large populations may cause damage to garden plants, especially tender leaves and seedlings. Indoors, earwigs are generally harmless but can be a nuisance when they enter homes seeking moisture and shelter, often hiding in basements, bathrooms, and cracks. Controlling earwigs involves reducing moisture, sealing entry points, removing mulch or debris near foundations, and using traps or insecticides if infestations become severe.

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Prevention Methods

1. Moisture and Habitat Control

Reduce moisture by fixing leaks and eliminating standing water around your home.
Remove mulch, leaf piles, grass clippings, and other organic debris near the foundation.
Improve drainage to prevent water accumulation near the house.

2. Physical Barriers and Home Maintenance

Seal cracks and gaps around windows, doors, vents, and foundations to block entry.
Trim shrubs, plants, and tree branches away from the house to reduce shelter and pathways.
Sweep patios, porches, basements, and other areas regularly to remove debris and potential hiding spots.

3. Lighting and Behavioral Control

Minimize outdoor lighting or switch to yellow bug lights, as bright lights attract earwigs at night.
Set traps like rolled-up damp newspapers or cardboard to catch and remove earwigs.