Millipedes Narceus americanus & lawn species

After heavy summer rain, Florida millipedes migrate by the hundreds — and a fraction of every migration dead-ends against your foundation and slips under the door. They can’t survive indoor dryness; the curled ones on the tile were dead the moment they came in.

Millipedes — identification photo
Photo credit · CC BY-SA 3.0

Signs you have them

  • Coiled brown curls along baseboards and the garage floor after rain
  • Lines of them on the driveway or patio at dawn
  • Musty smell when crushed

What you can do today, free

  • Sweep them up — they’re already dying indoors
  • Rake soggy leaf litter and thatch away from the slab
  • Water the lawn in the morning so the surface dries by night

Questions, answered straight

Why hundreds all at once?

Rain floods their soil habitat and triggers mass movement. A perimeter barrier treatment before the summer rains, part of the Pest Plan, intercepts the migration at the slab.

Often found together