Millipedes control — prevention & targeted treatment
Millipedes are slow, harmless, many-legged arthropods that feed on decaying plant matter. They often appear in large numbers after heavy rain.
Signs to look for
- Many-legged, slow-moving creatures on walls or floors
- Large numbers after rain or drought
- Dead millipedes in basements, garages, and porches
- Moisture or leaf-litter buildup near the foundation
Prevention (starts before the pest does)
- Move mulch, leaves, and debris away from the foundation
- Fix gutter and drainage issues that keep soil damp
- Seal gaps under doors and around windows
- Use gravel or a dry barrier along the foundation edge
Safe DIY limits
- Sweep or vacuum them up
- Remove wet leaf litter and mulch near walls
- Dry out damp areas
Eco-friendly approach
Millipede 'invasions' are mostly a weather response; control is about drying habitat and barrier changes — chemical use is rarely necessary or targeted.
For recurring, structural, or health-risk cases, work with a licensed provider. See honest DIY vs pro guidance →
Common questions
Why are there hundreds of millipedes after rain?
Rain forces them out of waterlogged soil and leaf litter; they migrate until they find dry cover, which is often your basement or garage.
Are millipedes harmful?
No. They don't bite, sting, or damage homes. They are a moisture-driven nuisance.
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