6 Common Signs of Carpet Beetles in Your Home

Adults

Most visible during summer. They do not bite and are generally harmless, feeding mainly on pollen. Often found near windows and light sources.

Larvae

The damaging stage. Cigar-shaped, reddish-brown to black with lighter stripes. Hairy bodies. Feed voraciously on natural fibers and keratin-containing materials.

Look for thin, bare areas or bald patches on wool or wool-blend rugs. Carpet beetle larvae have a grazing pattern that results in fraying both on the top and underside. They also damage furniture upholstery and leather book bindings. Note: Modern synthetic carpets are not affected.

Damage appears as large clusters or groupings of holes in sweaters, scarves, coats, and blankets. This differs from clothes moths which create smaller, more sporadic holes. Stored clothing left untouched is at higher risk.

Carpet beetles shed skin multiple times throughout their lifecycle. Discarded skins appear translucent, yellow or brown, dry and hollow, resembling sunflower seeds. Found under rugs, in clothes piles, and around furniture seams.

Small fecal pellets roughly the size of table salt or sand grains. Generally black or brown in color. Found at the base of wardrobes, on floors, or beneath clothing in feeding areas.

"Carpet beetle dermatitis" results from an allergic reaction to larvae hairs. Symptoms include skin irritation, rashes, or welts. Hairs detach and remain in carpets and fabrics as larvae shed and mature.

Adult beetles slowly climbing walls or found dead at windowsills. Adults are drawn outdoors to feed and mate during spring/summer. Seeing them indicates larvae have developed into adults inside your home.

Physical Damage

They feed on wool, silk, linen, and leather, creating holes in furniture, carpets, blankets, quilts, pillows, and clothing. This leads to costly replacements or repairs.

Health Concerns

They can contaminate food sources with feces and saliva carrying harmful bacteria. This can lead to allergic reactions, respiratory irritation, and carpet beetle dermatitis.

Carpets and rugs

Curtains and drapes

Closets and wardrobes

Upholstered furniture

Animal beds

Bird nests in chimneys

Stored food areas

Indoor plants/flowers

Thorough Vacuuming

Focus on carpets, furniture, curtains, and any area that could harbor pests.

Hot Water Laundering

Wash linens and fabrics in hot water to eliminate existing beetles and prevent new infestations.

Boric Acid Treatment

Spread on fabric furniture and carpets. Low toxicity to humans but lethal to beetles when ingested.

Steam Cleaning

Removes remaining beetles and their eggs from hard surfaces.

Mothballs

Store clothes and fabrics in boxes with mothballs to deter beetles.

Professional Treatment

For severe infestations, professional pest control offers expert treatment options.