How to remove millipedes from flower pots?

How to remove millipedes from flower pots?

Millipedes in flower pots indicate excessively wet soil or decaying organic matter in the pot.

Why do millipedes appear in pots?

  • Potting soil is too wet; millipedes prefer humidity above 70%.
  • There are decaying roots, leaves, or uncomposted organic fertilizer at the bottom.
  • Standing water in the pot tray attracts them.
  • The pot is placed on the ground, allowing millipedes to crawl in.
  • Prolonged dampness may allow them to breed in the soil.

Removal steps

  1. Empty the tray and wipe it dry.
  2. Remove dead leaves and twigs from the soil surface.
  3. Move the pot aside and spray bifenthrin-containing household insecticide on the spot where it was sitting.
  4. Also spray the outer wall and bottom of the pot.
  5. Apply a thin layer of dry diatomaceous earth on the soil surface (it abrades the cuticle, causing dehydration—physical control, safe for humans and pets).

Long-term prevention

  • Water appropriately; do not keep soil constantly wet.
  • Place gravel or broken pottery at the bottom for drainage.
  • Elevate pots on stands, not directly on the floor.
  • Clean trays regularly to prevent standing water and algae.
  • Avoid using uncomposted organic fertilizer for indoor plants.