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Top 5 Best Sprays For Carpet Beetles (2020 Review)

Carpet beetle larvae can cause tremendous damage to carpets, rugs, furniture, and other household fabrics.

They tend to hide so you may know you have them until the damage starts showing up. Then you need to act quickly before it gets any worse.

We’re going to walk you through the top four chemical sprays you can use to kill carpet beetles and keep them from coming back. 

Best sprays for carpet beetles

We’ll show you how to use them and why you need to add a fifth chemical, an IGR, to all four for long-term carpet beetle control.

At the end, we’ll briefly mention a couple of dry pesticides you can use in hunting cabins or vacation homes while you’re away from them for extended periods.

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Bayer Suspend SC – Insecticide
  • Made by Bayer
  • A broad-spectrum insecticide
  • The active ingredient is Deltamethrin
  • Made by Bayer
  • A broad-spectrum insecticide
  • The active ingredient is Deltamethrin
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Tempo Ultra SC 240 ML
  • A broad-spectrum insecticide
  • Labeled for 50 different insects
  • The active ingredient is Cyfluthrin
  • A broad-spectrum insecticide
  • Labeled for 50 different insects
  • The active ingredient is Cyfluthrin
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Syngenta Demand CS Insecticide
  • Syngenta is a well-known brand
  • Labeled for more than 30 insects
  • The active ingredient is Lambda-cyhalothrin
  • Syngenta is a well-known brand
  • Labeled for more than 30 insects
  • The active ingredient is Lambda-cyhalothrin
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MGK NyGuard IGR Concentrate Insecticide
  • Birth control for bugs
  • Mimics growth hormones
  • The active ingredient is Pyriproxyfen
  • Birth control for bugs
  • Mimics growth hormones
  • The active ingredient is Pyriproxyfen
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Ortho Home Defense MAX Insect Killer
  • Ortho is a well-known brand
  • Uses Bifenthrin as the first active ingredient
  • Uses Cypermethrin as the second active ingredient
  • Ortho is a well-known brand
  • Uses Bifenthrin as the first active ingredient
  • Uses Cypermethrin as the second active ingredient
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Our Overall #1 Rated Pick

(updated as of 04/24/2020)

  • Made by Bayer
  • A broad-spectrum insecticide
  • The active ingredient is Deltamethrin

We picked Suspend SC for a number of reasons.

It’s a professional-strength insecticide with a long history of effective pest control, it’s odorless (important when you’re spraying inside), it has very low toxicity, and it doesn’t leave a visible residue.

Suspend SC is a broad-spectrum insecticide labeled for use against more than 50 different pests.

Because it’s a concentrate, one 16-ounce bottle can be mixed with water to make up to 64 gallons of the finished product for spraying.

Because it’s a professional pesticide, it lasts for up to 90 days before you need to reapply it. The active ingredient is Deltamethrin, which is safe to use in food preparation areas. It needs to be stored in a cool, dark location.

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5 Best Sprays For Carpet Beetles

Are you short on time or just want a quick answer?

Check out our list below for a summary of our results. Keep on reading to learn more about carpet beetle sprays.

What is a Spray For Carpet Beetles?

It is a chemical, either concentrated or premixed, that will kill Black carpet beetles, Common carpet beetles, Furniture carpet beetles, or Varied carpet beetles, any one of which can cause all sorts of damage to your carpets, rugs, and furniture.

Read Also: What are Carpet Beetles? (How to Identify and Get Rid of Carpet Beetles)

Due to the similarities between beetles (family: Dermestidae) and other insects, a spray for carpet beetles will often prove effective against many other pests as well.

If the chemicals are concentrated, they’ll have to be diluted with water prior to spraying. If they are premixed, you use them as soon as you get them.

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How Do Sprays For Carpet Beetles Work?

That depends on the active ingredient. Most of the products reviewed here are Pyrethroids, synthetic versions of Pyrethrins, naturally-occurring pesticides found in chrysanthemum flowers.

After being ingested, Pyrethrins attack the central nervous system in insects, leading to paralysis and death.

Other pesticides, called Insect growth regulators (IGRs), interfere with an insect’s normal growth patterns so they mature too early or too late to be able to reproduce. This cuts the breeding cycle, preventing any new eggs from being laid.

Are Sprays For Carpet Beetles Effective For Killing Them?

Yes, but it is subject to some conditions. The main condition is that you can’t “spot-treat” just the area where you found the damage.

You have to treat your entire house, spraying all the carpets, area rugs, bath mats, fabric furniture, and drapes.

Carpet beetle larvae are the ones that do all the damage, not the adult beetles. By the time you see the damage they’ve caused, they’ve already matured, mated, and begun laying eggs somewhere else in the house.

Read Also: How To Kill And Get Rid of Carpet Beetles (Simple Home Guide)

Female adult carpet beetles can lay up to 100 eggs at a time, eggs that will hatch in about a week. In the larval stage they will begin eating the carpeting, lint, upholstery, and any other food sources they can find.

did you know carpet beetle spray

If you don’t spray the whole house, it’s guaranteed some of them will survive to continue the infestation. So, yes, carpet beetle sprays are effective but only if you use them correctly.

How To Use a Spray For Carpet Beetles

Most liquid pesticides require the use of a 1-gallon pump-up sprayer. You can spend extra to get a heavy-duty sprayer that will last for decades or a less expensive one that will last for several years.

Once you’ve got a sprayer, fill it halfway with water, then add the recommended amount of pesticide concentrate, usually an ounce or less. Swirl it around a bit then finish filling the sprayer.

Cap it and shake vigorously for 2-3 minutes. Pump up the pressure and you’re ready to begin. If you’re using an IGR (highly recommended), add it to the sprayer before you cap it and begin shaking it.

Spend several minutes vacuuming the house. The bristles will loosen the grip the larvae have on the fibers they’re attacking and pull them up to the top where the spray can reach them.

Spray the cracks and crevices around the baseboards, doors, windowsills, plumbing intrusions, and electrical outlets. Spray all the carpets and rugs with a steady back-and-forth motion until you’ve sprayed all of it.

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Are Sprays For Carpet Beetles Safe Around My Pets and Children?

Yes and no.

Modern pesticides have a very low level of toxicity for adults, but children and small pets are more susceptible than adults are, so you should keep them out of the area while you’re treating it and for up to an hour afterward.

How Do You Find the Best Spray For Carpet Beetles?

Look for a pesticide that lists beetles on the label. It doesn’t matter what kind of beetle is listed. If any kind of beetle is on the label, the product will kill carpet beetles.

Also, look for pesticides that have any one of the following ingredients listed on the label as the active ingredient:

  • Bifenthrin
  • Cyfluthrin
  • Cypermethrin
  • Deltamethrin
  • Imidacloprid
  • Lambda-cyhalothrin
  • Pyriproxyfen

Any of these active ingredients, either alone or together, will kill carpet beetles.

Best Sprays For Carpet Beetles Reviewed

  • Made by Bayer
  • A broad-spectrum insecticide
  • The active ingredient is Deltamethrin

Suspend SC is manufactured by Bayer, a well-known name.

It’s a professional-strength insecticide with a long history of effective pest control, it’s odorless (important when you’re spraying inside), it has very low toxicity, and it doesn’t leave a visible residue.

Suspend SC is a broad-spectrum insecticide labeled for use against more than 50 different pests.

Because it’s a concentrate, one 16-ounce bottle can be mixed with water to make up to 64 gallons of the finished product for spraying.

Because it’s a professional pesticide, it lasts for up to 90 days before you need to reapply it.

The active ingredient is Deltamethrin, which is safe to use in food preparation areas. It needs to be stored in a cool, dark location.

Pros

  • Odorless
  • Easy to use
  • Very low toxicity
  • Lasts for up to 90 days
  • It has a fast knockdown
  • Doesn’t leave a visible residue
  • Labeled for over 50 different pests

Cons

  • Needs to be stored in a cool, dark area
  • A broad-spectrum insecticide
  • Labeled for 50 different insects
  • The active ingredient is Cyfluthrin
Tempo is another professional-strength, broad-spectrum insecticide that is labeled for use against more than 50 different insects and pests.

The active ingredient is Cyfluthrin. It’s odorless, easy to use, and won’t leave a messy residue when it dries.

It has a fast knockdown, low toxicity, and remains active for up to 90 days after use. A single 8-ounce bottle of concentrate makes up to 30 gallons of spray. It needs to be stored in a cool, dark area when it’s not in use.

It is labeled for indoor and outdoor use, as well as being safe to use in kitchens and other food preparation areas.

Made of ultra breathable cotton

Pros

  • Odorless
  • Very low toxicity
  • Easy to use
  • Has a fast knockdown
  • Lasts for up 90 days

Cons

  • Can’t be shipped to CT or NY
  • Needs to be stored in a cool, dark area
  • Syngenta is a well-known brand
  • Labeled for more than 30 insects
  • The active ingredient is Lambda-cyhalothrin

Syngenta is a well-known brand name among pest control professionals.

It is an excellent home defense spray against any species of carpet beetles and more than 30 other insects too. The active ingredient is Lambda-cyhalothrin, a form or Cyfluthrin.

Each 8-ounce bottle of concentrate makes 8-40 gallons of spray depending on what pest you’re trying to kill. See the label for specific mixing directions for each pest.

The pesticide is micro-encapsulated so it will be picked up easier by insects crawling over treated surfaces.

It is labeled for inside and outside use, is odorless, and won’t leave a messy residue. It has to be stored in a cool, dry area.

Pros

  • Odorless
  • Easy to use
  • Very low toxicity
  • Won’t leave a messy residue

Cons

  • Needs to be stored in a cool, dark area
  • Birth control for bugs
  • Mimics growth hormones
  • The active ingredient is Pyriproxyfen

Insect growth regulators (IGRs) are specially designed insecticides that interfere with the growth of insects by mimicking the growth hormones they need to mature.

If they can’t mature, they can’t reproduce. So, in other words, it’s birth control for bugs.

IGRs have a strong, noticeable odor when you use them. They can cause some people to start sneezing, so a disposable face mask might be advisable.

Nyguard uses Pyriproxyfen as the active ingredient and it can be mixed with the other pesticides we’ve reviewed so you only have to spray once each time you treat your house for carpet beetles.

Pros

  • Easy to use
  • Very low toxicity
  • Lasts for up to 90 days

Cons

  • Has a very strong odor
  • Using a face mask is advisable
  • Should be stored in a cool, dark area
  • Ortho is a well-known brand
  • Uses Bifenthrin as the first active ingredient
  • Uses Cypermethrin as the second active ingredient

This ready-to-use pesticide from Ortho uses Bifenthrin and Cypermethrin as the active ingredients.

It has a battery-powered handle that pumps a continuous stream of pesticide so there’s no pumping, bending down or hand fatigue.

The extended-reach wand has multiple settings on it for fan spray, pin stream, and more. It is odorless and won’t leave stains or messy residues when it dries.

When not in use, store it in a cool, dark place. There have been some reports of the batteries dying.

Pros

  • Easy to use
  • Already mixed
  • Odorless
  • Won’t leave a messy residue
  • Battery-operated wand
  • No pumping required

Cons

  • Needs to be stored in a cool, dark place
  • Sometimes the batteries die before they should

Let Us Solve Your Pest Problem…Right Now!

Call us now (FREE) at 866-874-5527

We’ve found the best pest control company in your area that handles this exact pest problem!


You’ll have your solution in just a few minutes…call now!

Dry Pesticides for Carpet Beetles

Delta Dust is a dry, powdery form of Suspend. You’ll need to get a bulb duster to use it.

It leaves a light-colored dust on surfaces but it lasts for up to nine months, so it’s perfect for use in a hunting cabin, lake house, or vacation house that is empty most of the time.

Puff a cloud of dust into a room before you leave, then vacuum it up when you return. It will keep carpet beetles and other pests from moving in while you’re gone.

It’s also good for crack and crevice treatments. It won’t dissolve or wash away in water.

Boric acid is a great way to kill bugs, and this comes in a ready-to-use puffer bottle.

It has a fast knockdown and is a good way to protect seldom-used rooms or cabins. It loses its effectiveness if it gets wet.

Puff a cloud of it into a room right before you leave and let it settle over everything. When you come back, spend a few minutes vacuuming it up and you’ll be good to go.

  • Made by Bayer
  • A broad-spectrum insecticide
  • The active ingredient is Deltamethrin

Suspend SC is an effective, professional-strength insecticide that is easy to use, odorless, has very low toxicity, and doesn’t leave a visible residue.

It’s labeled for use against more than 50 different pests. One 16-ounce bottle makes up to 64 gallons of spray.

It lasts for up to 90 days before you need to reapply it and is safe to use in kitchens.

Final Thoughts On Sprays For Carpet Beetles

Combined with an IGR, any of the liquid pesticides we reviewed will provide effective, long-term relief from a carpet beetle infestation.

Suspend is the best carpet beetle spray in terms of price and effectiveness, but all of them kill bugs. Go get ‘em!

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