Woodlice (also known as pill bugs or slaters) are harmless, moisture-loving insects that often sneak into homes—especially in damp areas like basements, kitchens, bathrooms, and under skirting boards. While they don’t bite or spread disease, they can be a nuisance.
Here’s how to get rid of woodlice effectively and naturally—and keep them from coming back.
🐜 Why Are Woodlice in My Home?
Woodlice are drawn to:
- Damp, dark environments
- Decaying wood, leaves, or organic matter
- Cracks or gaps in walls, windows, or vents
They’re usually harmless but can signal damp or ventilation issues.
✅ Step-by-Step: How to Get Rid of Woodlice
1. Reduce Moisture and Dampness
Woodlice thrive in moisture. Drying out the area is key.
- Use a dehumidifier in damp rooms
- Open windows or use ventilation fans in kitchens, bathrooms, and basements
- Fix any leaks, rising damp, or plumbing issues
- Clear blocked gutters and improve drainage outside the home
✅ Dryer conditions = fewer woodlice
2. Seal Entry Points
- Fill in cracks, gaps, or holes in skirting boards, around pipes, and near doors/windows
- Use silicone sealant or caulk for small gaps
- Install door draught excluders and repair worn window seals
3. Remove Their Hiding Spots
Inside:
- Clear clutter and remove damp cardboard, fabric, or paper
- Clean behind furniture, under sinks, and around baseboards
Outside:
- Move compost heaps, logs, and plant pots away from your walls
- Clear up dead leaves, mulch, and wood debris
- Trim vegetation near the house to reduce damp
4. Use Natural Deterrents
- Diatomaceous earth: A natural powder that dehydrates insects—sprinkle along skirting boards or entry points
- Boric acid: Works similarly but should be used with caution if pets or kids are around
- Citrus peel or essential oils (e.g. lemon or eucalyptus) may deter woodlice when placed near entry points
5. Set Simple Traps
- Place a damp rolled-up newspaper or cardboard tube overnight
- In the morning, shake out the woodlice and dispose of them outside
- Repeat daily to reduce numbers
6. Vacuum Regularly
- Use your vacuum cleaner to quickly remove woodlice as you see them
- Pay special attention to corners, skirting boards, and under furniture
🧪 Optional: Use Insecticide (As a Last Resort)
If the infestation is severe:
- Use a household insecticide spray labeled for crawling insects
- Apply near cracks, vents, or damp areas
- Always follow safety instructions and ventilate the area
🧠 Prevention Tips
- Keep your home dry and well-ventilated
- Regularly check for and repair leaks or damp patches
- Keep organic matter and damp materials away from exterior walls
- Use weather stripping around doors and windows
Conclusion
To get rid of woodlice:
- Reduce moisture in your home
- Seal entry points
- Clear clutter and damp materials
- Use natural deterrents or traps
- Vacuum and clean regularly
With a bit of effort, you can eliminate woodlice naturally and stop them from returning. If the problem persists, a pest control professional can help assess and treat the area safely.
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