Carpet beetles vs clothes moths: What’s eating your wool and clothes?

Published September 15, 2022 • Updated August 4, 2026
Reviewed by Julie Miller, BA in Language Arts, Editorial Lead, Dr. Killigan’s

If clothes moths are the culprit, here is How to get rid of clothing moths in carpets.

TL;DR: Holes in wool and other natural fibers are usually caused by larvae, not adults. Clothes moth larvae are pale and may leave silky webbing plus irregular holes, while carpet beetle larvae are brown, fuzzy and often leave shed skins with broader thinning. Use the quick ID cues below to confirm the culprit and stop the cycle.

Do carpet beetles turn into moths?

No. Carpet beetle larvae become adult carpet beetles. Clothes moth larvae become adult clothes moths. They are different insects with different life cycles.

Carpet beetle larvae vs clothes moth larvae: quick ID

If you find fuzzy larvae and shed skins: more likely carpet beetles
If you find pale larvae with silk or webbing: more likely clothes moths

Carpet beetle larvae (“woolly bears” or “carpet worms”) at a glance

• Size: Commonly 1/8–1/4 inch, depending on species and growth stage
• Color and texture: Tan to brown with a fuzzy or bristly body and often banded segments
• Key clue: Shed larval skins; typically no silky webbing
• Common hotspots: Baseboards, vents, rug and carpet edges, under furniture and stored wool items

A note about “carpet worms”: This informal term usually refers to carpet beetle larvae. They are beetle larvae—not worms or clothes moth larvae.

Clothes moth larvae (“moth worms” or “wool moth larvae”) at a glance

• Size: Up to about 1/2 inch when fully grown
• Color and texture: Creamy white to pale yellow with a darker head; smooth rather than fuzzy
• Key clue: Silky webbing from webbing clothes moths or a portable case from case-bearing clothes moths
• Common hotspots: Clothing folds and seams, cuffs, collars, drawers, closet corners and rug borders

A note about “carpet moth larvae”: This informal phrase usually refers to clothes moth larvae found in wool rugs or along carpet edges. It is not a distinct pest species.

What are carpet beetles and clothes moths?

Carpet beetles: Small, oval beetles often noticed near windows and lights. Adults don’t bite. Females lay eggs near lint, pet hair and other animal-based material, so larvae hatch close to a food source.

Tip: Carpet beetles are sometimes mistaken for bed bugs, but their shape, coloring and behavior differ.

Clothes moths: Small moths that prefer dark, undisturbed spaces. Females lay eggs directly on natural fibers, allowing newly hatched larvae to begin feeding close to the item.

What carpet beetles vs clothes moths eat: wool, clothes and cotton

Do carpet beetles eat wool?

Yes—carpet beetle larvae eat animal-based materials (keratin). Wool is a common target.

Do carpet beetles eat clothes? 

Yes—when the garments contain animal-based materials such as wool, cashmere, silk blends, fur trim or feathers.

Do carpet beetles eat cotton?

Usually no—clean, pure cotton is not a preferred food source. Damage is more likely when cotton is blended with wool or another animal-based fiber, or when it is heavily soiled with food, perspiration, body oils or pet hair.

Do clothes moths eat cotton or synthetics?

Usually no—clothes moth larvae prefer animal-based materials. They may chew blends or soiled items where oils/food residues are present.

Shared high-risk materials (both pests)

• Wool, cashmere, felt
• Fur/hides, feather-filled items
• Silk (especially blends)
  

Carpet beetle vs clothes moth damage: what it looks like

Use damage pattern + nearby clues—especially when you can’t find a live larva.

Carpet beetle damage (larvae)

• Broader thinning across an area, often with a diffuse appearance
• Scattered grazing or chew damage rather than clean-cut holes
• Fecal pellets, called frass, may be visible near the damaged area and can be about the size of a grain of salt

Clothes moth damage (larvae)

• Irregular holes with soft, uneven edges
• Grazed or thinned patches where the fibers appear shaved before a hole develops
• Frass may be found close to the feeding area

Where do they come from?

Carpet beetles: Adults usually come from outdoors. They slip inside through open doors and windows, crawl through gaps in screens and frames or hitchhike in on items like cut flowers, holiday décor and stored fabrics.

Clothes moths: They usually come from infested textiles—secondhand wool items, rugs, upholstered pieces or stored items carrying eggs or larvae.

How to get rid of carpet beetles or clothes moths

The core strategy is the same: remove larvae food sources, disrupt hidden life stages and monitor so you catch the next wave.

Step 1: Confirm the source 

Focus on places where keratin, lint and stillness overlap:

• Closet floors, baseboards and corners
• Drawer seams and folded stacks
• Rug borders and under heavy furniture
• Vents and duct edges where lint and pet hair collect
• Upholstered furniture seams (especially natural stuffing)
• Wall-to-wall carpet: if possible, lift the outer edge near baseboards (tack strip area) and check underneath

Step 2: Deep clean

• Vacuum thoroughly using crevice/brush attachments, especially along floor/wall junctions, baseboards, rug borders, vents and under furniture
• Empty vacuum contents immediately (a sealed bag outdoors is ideal)
• Launder or dry clean what you can
• Isolate and treat non-washable items using heat or freezing, when appropriate.
• Seal heavily infested items in a bag for disposal or professional treatment. Do not carry them uncovered through the house.

Step 3: Treat affected areas 

After cleaning, treat the hiding zones where larvae travel and pupae may be concealed.

Use Six Feet Under®:

• Along baseboards, rug borders, closet-floor edges
• In cracks, crevices and shelf corners
• Under and behind furniture where lint builds up
• On closet floors, walls and shelves where lint collects

Do not apply directly to clothing or other textiles. Spot-test an inconspicuous area first and always follow label directions.

Step 4: Monitor clothes moth activity

If clothes moths are part of the issue, place Clothing Moth Traps in each affected closet or storage area. The pheromone lure attracts and captures adult male clothes moths, helping interrupt the reproductive cycle and monitor ongoing activity. Continue cleaning and targeted treatment, since traps do not remove eggs or larvae hidden in fabrics, rugs or furniture.

Clothes moth infestations take time to resolve because hidden eggs and larvae continue developing after adult moths are trapped. Follow this step-by-step guide to getting rid of clothing moths for the complete cleaning, treatment and prevention process.

For best results, place one trap higher in the closet, such as on a rod or upper shelf, and another lower near the floor. Keep traps in dark, quiet areas where clothes moth activity or fabric damage has been found. See Where to place Moth Traps for more detailed placement and troubleshooting guidance.

Step 5: Prevent the cycle from restarting

• Store cleaned wools in sealed bins or garment bags with Cedar Planks
• Shake out and air seasonal items periodically
• Keep closets dry and vacuum regularly to reduce lint
• Remove pet hair and lint from baseboards and vents

Tip: Keep cedar products several feet away from active Clothing Moth Traps so the repellent scent does not compete with the pheromone lure.

Need help identifying the source? Dr. Killigan’s Customer Experience team is available to help you review the signs, narrow down the pest and choose the right next step.

Explore more

• How to get rid of clothing moths
  (A step-by-step plan for finding the source, cleaning affected areas and interrupting the clothes moth life cycle.)
  
• How to prevent a clothing moth infestation
  (Practical storage, cleaning and monitoring habits that help protect wool and other animal-based materials.)
  
• Where clothing moths live and hide
  (The closet, rug, furniture and storage hotspots to inspect when moth activity is difficult to trace.)
  
• Do clothing moths actually eat clothes?
  (Which life stage causes the damage, which materials are most vulnerable and why some items are left untouched.)