How To Get Rid Of Carpet Beetles: Identify, Kill, and Prevent These Sneaky Pests for Good

Last Updated on 16/07/2025 by Tony Abrahams

If you’re wondering how to get rid of carpet beetles, the good news is, it can be done. But it’s not a one-and-done spray-and-pray situation. These pests are sneaky, persistent, and can live in your home for months before you even realise they’re there.

This guide will walk you through exactly how to identify, treat, and prevent carpet beetles, and help you avoid common traps that waste time or money.

How To Identify Carpet Beetles vs Other Pests

Knowing how to get rid of carpet beetles starts with understanding their habits.

First thing’s first: are you sure it’s carpet beetles?

Many people confuse them with moths, fleas, or even bed bugs, especially the larvae, which look like tiny, hairy caterpillars.

Carpet beetles:

• Adults are small (2 – 5mm), oval-shaped, and can be black, brown, or mottled.
• Larvae are longer (5 – 7mm), bristly, and often striped. They’re the real troublemakers.
• You’ll spot them crawling on carpets, curtains, furniture, or even up your walls.

Signs of carpet beetles:

• Tiny holes in clothing or natural fibres like wool, silk, fur, feathers
• Shed larval skins near rugs, vents, or drawers
• Hair-like bristles or allergic reactions (rashes, itching)
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What Causes a Carpet Beetle Infestation?

To successfully get rid of carpet beetles, you must first identify what attracts them.

Carpet beetles don’t show up because your home is “dirty”, they show up because it has what they want.

They feed on:

• Wool, silk, leather, fur
• Dead skin cells, hair, lint
• Stored pantry goods (for some species)

They often get in through:

• Open doors or windows
• Fresh flowers or plants
• Second-hand furniture, clothes, or rugs

“According to entomologists at the University of Sydney, carpet beetles are one of the most common household pests in Australian homes, especially in warmer months.”

Warm weather can kick off breeding cycles, which is why infestations often spike in late spring or early summer.

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How to Kill Carpet Beetles and Their Larvae

Let’s be blunt: sprays alone don’t work. You have to kill both adults and larvae, and interrupt the life cycle.

In your quest to get rid of carpet beetles, focus on both preventive and reactive measures.

Immediate steps:

• Vacuum thoroughly, daily for 1–2 weeks. Focus on baseboards, vents, rugs, and behind furniture.
• Steam clean, especially soft furnishings like mattresses, curtains, and couches.
• Wash infested items, use hot water and/or dry them on high heat.

Recommended treatments:

• Boric acid, safe and effective powder to kill larvae
• Diatomaceous Earth (DE), a natural powder that kills by drying them out
• Insect Growth Regulators (IGRs), stop eggs from hatching

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You’ll likely need to repeat treatment in 2–4 weeks, depending on the severity.
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How to Clean and Treat Infested Areas

Cleaning is key to getting rid of carpet beetles from your home.

Cleaning is everything.

Here’s what you have to do:

• Wash all clothing, bedding, and towels (even unused ones in storage)
• Vacuum every surface, including closets, drawers, and under beds
• Treat furniture with DE or boric acid, focusing on seams and folds
• Freeze delicate items (like wool hats or antique fabrics) in sealed bags for 72 hours

Avoid recontamination by keeping clean items sealed in airtight containers for a few weeks.

“I found carpet beetle larvae in my wool blankets. After two steam treatments and some Diatomaceous Earth under the skirting, I haven’t seen one since. Karen, VIC”
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How To Prevent Carpet Beetles Coming Back

Once you’ve cleared them out, don’t relax just yet, prevention matters.

Here’s how to stay beetle-free:

• Use mattress covers to stop them eating your mattress.
• Store clothing in airtight containers, especially off-season items
• Keep windows screened and doors closed in warmer months
• Vacuum regularly, yes, even the corners
• Avoid bringing in second-hand fabrics or rugs unless thoroughly checked

Natural repellents like cedar oil, clove oil, or even placing sachets of dried herbs (like rosemary or lavender) in drawers can also help.

These methods can help you effectively get rid of carpet beetles and prevent future infestations.

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Are Carpet Beetles Harmful to Humans?

They don’t bite, but they can cause skin reactions, especially the larvae.

It’s not the beetles themselves, but their tiny hairs and shed skins that cause problems. Some people develop allergic reactions that look like:

• Red, itchy bumps (often mistaken for bites)
• Dermatitis-like rashes
• Eye or respiratory irritation (from airborne bristles)

If you’re reacting but haven’t seen live bugs, it might still be carpet beetle larvae. Check high-risk areas like under rugs, in wardrobes, or behind baseboards.
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FAQs: How To Get Rid Of Carpet Beetles

To combat infestations, learn how to get rid of carpet beetles quickly and effectively.

• What kills carpet beetles instantly?
  Steam is your best bet. It kills both adult beetles and larvae on contact. For long-term control, use boric acid or Diatomaceous Earth.
• Can carpet beetles live in your bed?
  Yes, especially if your mattress or sheets have natural fibres. They’re more interested in the fabric than you, but you may still react to their hairs or droppings.
• Do I need a professional exterminator?
  Not usually. Most mild-to-moderate infestations can be treated DIY using steam, vacuuming, and natural powders like DE. Just be consistent.

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Remember, knowing how to get rid of carpet beetles is essential for a pest-free home.

Sources: How To Get Rid Of Carpet Beetles

For further information, check out additional resources on how to get rid of carpet beetles.

https://blog.entomologist.net/how-to-use-boric-acid-for-carpet-beetles.html

https://www.marthastewart.com/how-to-get-rid-of-carpet-beetles