Cedar balls repel moths, termites, certain ants, mosquitoes, cockroaches, and other insects thanks to natural aromatic oils like thujone
How long do cedar balls last?
Quality cedar blocks and balls typically last 3 to 7 years
That longevity depends entirely on how strong the cedar’s natural oils remain. To keep them working, just sand the surface lightly every few years or whenever the scent starts to fade. Maintain them properly, and they’ll protect your wool sweaters, blankets, and linens the whole time. Just store them somewhere cool and dry—no direct sunlight allowed. If you're curious about outdoor cedar applications, you might also want to check out safely burning cedar wood.
What are cedar balls used for?
Cedar balls are primarily used to naturally repel moths and other insects, absorb moisture, and keep spaces smelling fresh
Toss them in closets, drawers, suitcases, or storage bins to shield fabrics from hungry pests. The wood’s oils also pull moisture from the air, which helps stop mold and mildew from forming on your favorite sweaters. Plus, that woodsy cedar scent freshens up the space without any synthetic fragrances. Just make sure you’re using real cedar—not some cheap knockoff. If you're using them in outdoor storage, consider pairing them with cedar mulch for enhanced protection.
Are cedar balls moth balls?
No, cedar balls are not moth balls
Cedar balls are just dried wood that bugs avoid because of the smell. Traditional mothballs, on the other hand, are basically pesticide bombs—they kill moths and larvae with toxic fumes. Cedar won’t poison anything, which makes it way safer around kids and pets. That said, cedar alone might not crush a full-blown infestation. Pair it with airtight containers for the best defense. For more on wood treatments, see our guide on treating cedar cladding.
Are cedar balls safe?
Cedar balls are generally safe when used as directed, but their oils can irritate sensitive individuals and pets
The oils might bother people with asthma or allergies, and pets—especially cats and dogs—could get an upset stomach if they chew on them. Always use cedar in a well-ventilated spot and keep an eye on your furry friends. Birds and small animals? They’re extra sensitive, so keep cedar away from their spaces. If you’re worried, lavender sachets make a gentler alternative. For pet safety tips, visit pet health resources.
What bugs does cedar keep away?
Cedar repels moths, termites, certain ants, mosquitoes, cockroaches, and carpet beetles
The star ingredient here is thujone, a natural oil that bugs can’t stand. Cedar also chases off silverfish, spiders, and fleas by making the air too dry and aromatic for their liking. Don’t expect cedar to wipe out an existing infestation, though—it’s more of a “keep them out” strategy. Combine it with other methods for serious pest problems. For outdoor pest control, explore local wildlife resources.
Why do bugs not like cedars?
Insects avoid cedar due to the natural chemicals and oils, especially thujone, released by the wood
Those compounds mess with bugs’ ability to smell and breathe, making the environment downright unpleasant for them. Over time, the cedar scent also hides the smells that attract pests, like human odors or fabric fibers. Unlike harsh sprays, cedar doesn’t kill bugs—it just makes your storage space feel unwelcoming to them. Perfect for low-toxicity pest control. For more on natural pest deterrents, check out cedar fence applications.
Does cedar lose its smell?
Yes, cedar gradually loses its aroma over time due to oil depletion
How fast it fades depends on the wood quality, air exposure, and humidity. A quick sanding can wake up the scent by exposing fresh oils. Refresh them every few years, and store cedar balls in sealed containers when you’re not using them to slow down the fading.
How can I make my cedar chest smell good again?
Clean the interior with white vinegar on a lint-free cloth, then air dry thoroughly
Wipe down every surface to banish old odors and residue, then leave the chest open to air out. Stubborn smells? Repeat the process or stash a box of baking soda inside for a day. Skip the commercial air fresheners—they can clash with the cedar oils. A little regular cleaning and occasional sanding of the cedar lining keeps everything smelling naturally fresh.
Is the smell of cedar harmful?
The scent of cedar is generally safe for humans but can be harmful to pets, especially birds and small animals
For most people, cedar’s aroma is harmless, but sensitive individuals or pets might get respiratory irritation. Birds, in particular, have super-sensitive lungs, so keep cedar far away from their cages. Watch your pets for any signs of trouble, and always use cedar in a well-ventilated space. If you’re unsure, try milder options like lavender or rosemary sachets instead.
Source: ASPCA: Toxic and Non-Toxic Plants
Is cedar harmful to humans?
Cedar wood dust and oils can cause respiratory issues and allergic reactions in some people
Woodworkers who handle cedar regularly sometimes develop asthma or chronic lung problems from the dust. The volatile organic compounds (VOCs) in cedar can also trigger headaches or eye irritation in sensitive folks. Always use cedar in a ventilated area, and never breathe in the sawdust. If you start feeling off, stop using it and check with a doctor.
Source: CDC: Wood Dust
Which is better mothballs or cedar?
Cedar is safer and more pleasant-smelling than mothballs, though mothballs are more effective at killing active infestations
Mothballs pack some serious chemical punch—they’re toxic to humans, pets, and the environment. Cedar, on the other hand, keeps pests away naturally without any fumes. It’s perfect for everyday use, but for a full-blown infestation, you might need professional help or mothballs. Use cedar as your first line of defense, and seal your fabrics in airtight containers for extra protection.
Source: U.S. EPA: Mothballs
What does cedar smell like?
Cedar has a warm, woody aroma with balsamic and slightly camphoraceous undertones
People often compare it to pencil shavings, fine cigar boxes, or old hope chests. The scent is earthy yet clean, which is why it’s so popular in closets and drawers. Unlike synthetic air fresheners, cedar’s fragrance lingers because of its natural oils. Just remember—cheap cedar won’t smell as rich or last as long. If you're curious about the wood's classification, learn more about whether cedar is a pine tree.
What to use instead of mothballs?
Alternatives include lavender satchels, cedar chips, mint, cloves, rosemary, thyme, airtight containers, and white camphor oil
Each of these options keeps moths at bay without toxic chemicals. Lavender and mint work through scent, while herbs like cloves and rosemary offer long-lasting protection. Airtight containers block moths from reaching your fabrics entirely. For really tough infestations, mix and match—try cedar chips with lavender sachets in sealed bins.
What does cedar do for clothes?
Cedar removes excess moisture from the air, acts as a natural dehumidifier, and keeps clothes smelling fresh
In humid places, cedar helps stop mildew and fabric damage by pulling moisture from the air. The woodsy scent also covers up odors and deters moths from laying eggs in wool or silk. Unlike plastic bins, cedar lets fabrics breathe while still protecting them. Toss a few cedar balls or blocks in your drawers or on closet shelves for the best results. If you're storing outdoor gear, consider using cedar in combination with cedar siding prep techniques for optimal preservation.
How long do cedar wood moth balls last?
Cedar wood moth balls typically retain their scent for up to 6 months
Give them a light sanding to extend their life by exposing fresh oils. Store them in a sealed container when you’re not using them to slow down the scent loss. Replace them if the aroma fades or if they get damp. For round-the-clock protection, keep a few balls in each storage spot and refresh them once a year.
Edited and fact-checked by the FixAnswer editorial team.
