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Getting Rid Of House Centipedes

Where Centipedes are Found

Centipedes usually live outside, but the House Centipede you can find inside as well. Centipedes usually live outdoors in damp areas such as under leaves, stones, boards, tree bark, or in mulch around outdoor plantings. If they are around the foundation of the house, they may wander inside. Most centipedes are active at night.

 

Centipede Identification

Centipedes are usually brownish, flattened, and elongate animals which have many body segments. Centipedes are flattened, with many different body segments. Centipedes have one pair of legs attached to most of these body segments. Centipedes differ from millipedes; millipedes have two pairs of legs on most segments and bodies which are not flattened. Centipedes are between 1-6 inches, and the House Centipede is 1-1/12 inches.

 

Centipede Damage and Bites

Larger centipedes can bite if they are injured, with a light swelling. A physician should be consulted if the bite has penetrated the skin. The centipede is beneficial, eating other insects. Centipedes do not damage food supplies or household furnishings.

Centipede Biology

Centipedes typically overwinter outdoors; in the summer, centipedes lay 35 eggs or more in or on the soil. Newly hatched centipedes have four pairs of legs; during subsequent molts, the centipede progressively increases the number of legs until becoming adult. Adults of many species live a year and some as long as five to six years.

 

House Centipedes

house centipede The house centipede is a common pest in many parts of the United States. Unlike most other centipedes, the House Centipede lives its entire life inside a building.

The house centipede is grey-yellow with three stripes down the back and has very long legs banded with white. The largest centipedes are found in the Southwest. The body of this centipede is usually only 1 to 1 1/2 inches long at the most, but it's 15 pairs of legs make it seem much larger. The body is grayish-yellow with 3 dark stripes extending along the full length of the back.

The House Centipede will prefer to live in damp areas such as cellars, closets, bathrooms. They can also be found in attics during the warmer monthsand unexcavated areas under the house.

Eggs are laid in these same damp places, as well as behind baseboards or beneath bark on firewood.

 

How to Kill Centipedes

Centipedes can be prevented from gaining entry into buildings by sealing and caulking gaps around siding, windows, doors, pipes, wires and other structural voids. An easy to spray foam spray like Pur Black NF Foam has a closed cell foam that seals openings and voids from insects and rodents from entering buildings.

Removal of centipedes habitats including trash, rocks, boards, compost piles, and other hiding places around the structure would help reduce the population. The House Centipede will prefer to live in damp areas like basements, bathrooms, behind baseboards, or attics.

House centipedes can be controlled indoors by eliminating their harborage areas where possible and using a vacuum to remove exposed centipedes.

Insecticide Sprays

  1. D Fense SC: *Top recommendation (Broader label and longer lasting-may;will dry invisible. The Cyper WP or Demon WP leave a visible residual that can be seen against dark wood.
  2. Cyper WP or Demon WP: Cyper WP and Demon WP have the same label, with Cypermethrin 40.0%.
  3. D Fense SC, Cyper WP or Demon WP may be applied inside or outside and are residual insecticides. These products sprayed along cracks and crevices, entry points, and baseboards, would discourage centipedes activity. These products should be applied as a 3- to 10-foot band around the perimeter of the structure, into harborage sites, and/or around potential entry points. Both products will give you long term residual-about 3 months, and is a good spray for all types of surfaces.
  4. Liquid and dust applications can be introduced into wall voids, cracks and crevices along baseboards and into other potential hiding places.

Insecticide Aerosols

You may also use an aerosol like CB Invader HPX , sprayed around doors and windows and other places where these pests may enter premises. Choose and aerosol with a crack and crevice tip to apply in the very small cracks and crevices.

Insecticide Dusts

A recommended dust for attic areas would be D Fense Dust with a hand duster or garden dusters.

 

Centipede Control Products

Insecticide Concentrates

d fense insecticide
d fense sc

Cyper WP-1 Lb.
cyper wp



Aerosols
cb invader aerosol

Invader 14oz
invader hpx



Dusts

d fense dust

D Fense Dust 1 lb
d fense


Excluders

pur black nf foam

Pur Black NF Foam
nf foam