Millipedes pest control knowledge

Millipedes

Exposed Arizona’s Creepy Crawlers

Millipedes are multi-legged pests, which are often mistaken for their more threatening cousins, centipedes. They are also referred to as “thousand-leggers” because of their many pairs of legs, but in fact, they just have 30 – 90+ pairs of legs. In Arizona, these slow movers can invade homes. While they are not potentially dangerous, they can signal moisture issues and be a hint for attracting other pests to the area, which makes the pest control service an inevitable decision.

Common types of Millipedes in Arizona

Desert Millipede

Yellow-Banded Millipede

Polydesmida spp

Sings of Millipedes

Sightings: Spotting millipedes curled into spirals, especially in damp areas.
Droppings: Tiny, dark pellets scattered on floors or counters.
Foul Smell: A mild, unpleasant odor from their defensive secretions.
Mass Migration: Large numbers appear after rain, often near foundations.

Dimension Range

1 – 5 inches long, depending on species.

Decaying plant matter, fungi, and occasionally live roots.

High moisture levels, organic debris like leaf litter, and dark, undisturbed corners.

Millipedes Characteristics

Color & Pattern

Desert: Reddish-brown with black bands. Yellow-Banded: Dark with yellow bands or spots. Polydesmida: Brown to black, sometimes with subtle markings.

Cylindrical or slightly flattened, segmented bodies. Wingless.

Outdoors in soil, under rocks, or in mulch; indoors in basements or bathrooms. They favor Arizona’s moist microclimates despite the arid surroundings.

How to prevent Millipedes from entering homes?

Generally, the most effective way to reduce millipede population is to minimize the areas of moisture around home by fixing leak spots and removing yard debris. To achieve effective results, it is better to consult us for a professional millipedes treatment. 

What harms can millipedes cause?

Diseases

No direct transmission has been reported, but secretions may carry minor contaminants.

Bites

No bites, but defensive chemicals may irritate skin or eyes.

Harms to Structure

Minimal, though droppings and fluids can stain surfaces.

Harm to Business

Can unsettle guests in hospitality settings if numerous.
Why do millipedes come indoors after rain?

They look for a dry shelter when outdoor conditions get too wet.

Millipedes are not harmful until they get eaten by pets. In which case, millipede secretions may cause irritation for your pet.

Yes, they often dehydrate within days unless moisture is available.

It is challenging to identify millipedes from centipedes, but on a closer look, Millipedes and centipedes differ in their leg shape. Millipedes as non-venomous insects have two pair of legs on each body segments while centipedes as venomous pests has one pair of legs on each segments.

Frequently Asked Questions