Symptoms
- Reddish-brown insects with pincers at the rear seen indoors, often in bathrooms or basements
- More activity noticed after rain or during very dry spells outside
- Found near doors, windows, or damp areas
Likely causes
- CommonDamp mulch, leaf litter, or woodpiles near the foundationThese are prime earwig habitats right next to the house, making indoor entry more likely.
- CommonGaps around doors, windows, or the foundationEarwigs can squeeze through small openings while seeking shelter or moisture.
- PossibleHigh indoor humidity in a specific roomA damp bathroom or basement can be attractive once earwigs are already close to entering.
What to do
- Move mulch, leaf piles, and stacked wood at least a foot away from the foundation.
- Reduce excess moisture around the foundation by checking gutters, downspouts, and grading.
- Seal gaps around doors, windows, and foundation penetrations with weatherstripping or caulk.
- Vacuum up any earwigs found indoors rather than squashing them, which can leave odor and residue.
- Reduce indoor humidity in affected rooms with ventilation or a dehumidifier.
- Use sticky traps or a perimeter insecticide barrier outside the foundation if the problem persists.
- Call a pest control professional for an exterior treatment if numbers remain high despite moisture and sealing fixes.
Tools and parts
- Vacuum
- Caulk gun
When to call a pro
Call a pest control professional for a perimeter treatment if earwig numbers stay high after basic exclusion and moisture control.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.