Finding tiny holes or worn patches on your clothes can leave you scratching your head. Many Melbourne homeowners immediately blame clothes moths, but silverfish are another pest worth considering.
Over the years, I’ve inspected plenty of homes where people were convinced moths had invaded their wardrobes, only to discover silverfish quietly feeding on starched fabrics, cardboard boxes and damp storage areas. The good news is that silverfish do not destroy clothing in the same way as moths. The better news is that once you understand what attracts them, they’re much easier to manage.
This guide explains what silverfish eat, why they damage certain fabrics, how to spot the warning signs, and what you can do to protect your wardrobe and the rest of your home.
Why Do Silverfish Eat Clothes Instead of Leaving Them Alone?
Silverfish have earned a reputation for damaging clothing, but the reason surprises most people. They are not hunting for the fabric itself. They’re searching for the starches, sugars and organic residue that collect on clothing over time.
I’ve visited homes where expensive shirts hanging beside synthetic jackets showed damage on only a handful of items. The difference wasn’t the price tag. It was the fabric, how it had been stored and whether it had been cleaned before being packed away.
Once you understand their feeding habits, their behaviour starts to make sense.
What Do Silverfish Eat Inside Australian Homes?
Silverfish are opportunistic feeders with a strong preference for carbohydrates. They survive by scraping food from surfaces rather than chewing through thick materials.
Inside the average Australian home, they commonly feed on:
- Flour and baking ingredients
- Breakfast cereals
- Rice and pasta
- Sugar
- Cardboard
- Wallpaper paste
- Book bindings
- Paper products
- Pet food
- Dead insects
- Shed human hair
- Skin flakes
One fact often catches homeowners off guard. Silverfish can survive for surprisingly long periods with very little food, provided they have enough moisture. That’s one reason infestations can linger unnoticed inside walls, wardrobes or storage areas.
During inspections across Melbourne, particularly in older homes around suburbs like Frankston, Bentleigh and Mornington, it’s common to find silverfish living happily behind skirting boards even when there appears to be very little food nearby.
Why Clothes Become a Food Source
Clothing becomes attractive when it offers something more than fabric.
Silverfish are drawn to:
- Starch-based finishes used on new or freshly ironed garments.
- Body oils and perspiration left behind after wearing clothes.
- Food stains and sugary spills that seem insignificant to us but provide nutrition for pests.
- Moisture, which encourages microscopic mould growth that they readily feed on.
Seasonal storage often creates the perfect recipe for trouble.
Imagine someone packing away winter jumpers after the cooler months. They skip washing one favourite jumper because it “looks clean”, fold everything into a cardboard box and slide it into a wardrobe beside the ensuite bathroom.
Six months later they discover tiny worn patches.
The silverfish weren’t interested in fashion. They were attracted by invisible residues trapped in the fibres and the humid conditions surrounding the storage box.
It’s a classic case of giving pests a free lunch without realising it.
How Silverfish Eating Fabric Damages Your Clothes
One of the biggest myths I hear is that silverfish chew neat holes through clothing.
That’s actually more typical of clothes moth larvae.
Silverfish damage looks quite different because their mouthparts work by scraping the surface rather than cutting straight through fabric.
Understanding those differences makes identifying the culprit much easier.
What Silverfish Clothing Damage Looks Like
Instead of large holes, silverfish usually leave behind subtle warning signs that gradually become more noticeable.
Look for:
- Rough, thinned patches
- Tiny irregular pinholes
- Frayed surface fibres
- Yellowish stains
- Damage concentrated around collars, seams and cuffs
- Fine scraping marks across natural fabrics
These areas often contain higher concentrations of sweat and body oils, making them more appealing.
| Silverfish Damage | Clothes Moth Damage | Carpet Beetle Damage |
| Surface scraping | Clean holes through fabric | Ragged holes |
| Irregular thinning | Large circular holes | Concentrated damaged patches |
| Tiny rough-edged pinholes | Clean-cut openings | Uneven chewing |
| Yellow staining possible | Webbing may be present | Larval skins often found |
| Prefers starch-contaminated fabrics | Targets keratin-rich fibres | Attacks natural animal fibres |
One homeowner I met had replaced several linen shirts before calling us. He assumed poor washing was causing the damage. After inspecting his wardrobe, we found silverfish sheltering behind loose skirting boards and beneath cardboard storage containers. Once the infestation was addressed, the damage stopped.
Sometimes the answer really is hiding in plain sight.
Why Silverfish Damage Is Often Misidentified
Several household pests damage fabrics, making diagnosis difficult.
Silverfish are commonly mistaken for:
- Clothes moths
- Carpet beetles
- Cockroaches
- General wear and tear
Before assuming the worst, ask yourself:
- Are the holes clean or irregular?
- Is the wardrobe damp?
- Have you seen silverfish in bathrooms or laundries?
- Are books or cardboard boxes also showing damage?
- Are yellow stains appearing alongside worn patches?
Answering these questions often points you in the right direction before treatment even begins.
Which Fabrics Are Most at Risk from Silverfish?
Not every item hanging in your wardrobe has the same level of risk.
Silverfish show clear preferences depending on what a fabric contains.
Natural Fibres Silverfish Prefer
Plant-based fibres tend to be the most attractive because they’re rich in cellulose.
These include:
- Cotton
- Linen
- Rayon
If these materials contain starch or body residue, they become even more attractive.
A freshly laundered cotton shirt stored inside a dry wardrobe is far less appealing than one that’s been worn several times before storage.
That simple habit can make all the difference.
Can Silverfish Damage Wool and Silk?
Yes, although they’re usually not the primary pest responsible.
Silverfish may feed on:
- Silk scarves
- Wool jumpers
- Wool blankets
- Delicate natural fibres carrying body oils
However, if you’re seeing large clean holes through wool garments, clothes moths remain the more likely culprit.
Silverfish generally leave lighter surface damage instead.
I’ve inspected wardrobes where homeowners believed silverfish had ruined expensive wool coats. After a closer look, the telltale moth webbing told a different story entirely.
Correct identification saves both time and money.
Which Clothing Materials Silverfish Usually Ignore
Synthetic fibres provide very little nutritional value.
Silverfish generally avoid:
- Polyester
- Nylon
- Acrylic
There are exceptions.
If synthetic garments become heavily soiled with food, sweat or starch finishes, silverfish may still scrape the surface to reach those residues.
The fibre isn’t the attraction.
Everything sitting on top of it is.
| Fabric | Risk Level | Reason |
| Cotton | High | Rich in cellulose and often contaminated with starch |
| Linen | High | Natural plant fibre with high carbohydrate content |
| Rayon | High | Cellulose-based material |
| Silk | Moderate | Can attract silverfish when soiled |
| Wool | Moderate | Secondary target compared with moths |
| Leather | Low | Occasionally affected if damp and dirty |
| Polyester | Very Low | Synthetic with little nutritional value |
| Nylon | Very Low | Rarely targeted unless contaminated |
Why You Often Find Silverfish in Wardrobes
A wardrobe ticks nearly every box on a silverfish wish list.
It is:
- Dark
- Quiet
- Undisturbed
- Often humid
- Filled with natural fibres
- Commonly used for long-term storage
For silverfish, it’s almost like checking into a five-star hotel.
Why Dark Wardrobes Create the Perfect Hiding Place
Silverfish avoid light whenever possible.
During inspections, the insects often disappear into:
- Skirting board gaps
- Corners behind shelving
- Cardboard storage boxes
- Cracks around built-in wardrobes
- Gaps beneath flooring
Many people only notice them after switching on a wardrobe light late at night.
They disappear almost instantly, which explains why infestations often go unnoticed for months.
Wardrobes located against external walls can be even more attractive during Melbourne’s cooler months, particularly when condensation develops behind cupboards with limited airflow.
The Moisture Problem Most Homeowners Miss
If there’s one lesson I’ve learnt after years of inspecting homes across Melbourne, it’s this: moisture is usually the real problem.
Silverfish don’t thrive in dry conditions. They rely on humidity to survive, moult and reproduce. That’s why you’ll often find them in wardrobes that share a wall with a bathroom, laundry or poorly ventilated exterior wall.
Silverfish thrive in areas with consistently high humidity, particularly where poor ventilation, condensation or damp materials provide favourable conditions.
Keep an eye out for these warning signs:
- Condensation inside wardrobes
- A musty smell
- Clothes feeling slightly damp
- Mould forming on walls or ceilings
- Water stains from plumbing leaks
- Poor airflow around stored clothing
Quick Checklist: Is Your Wardrobe Attractive to Silverfish?
- Is it beside a bathroom or laundry?
- Do you store clothes in cardboard boxes?
- Are seasonal clothes packed away without washing?
- Does the wardrobe feel humid or stuffy?
- Have you seen silverfish elsewhere in the house?
If you answered “yes” to several of these, it’s worth investigating before minor damage turns into a larger infestation.
Silverfish Damage Goes Beyond Clothing
While damaged clothing often grabs attention first, wardrobes are rarely where silverfish cause the greatest financial loss.
In many homes, they’re quietly feeding on paper products, stored keepsakes and building materials long before anyone notices.
Books, Paperwork and Family Keepsakes Are Often Bigger Targets
Silverfish have a strong appetite for paper because it contains cellulose and starch-based coatings.
Items commonly damaged include:
- Books
- Family photo albums
- Birth certificates and important documents
- Old newspapers
- Stamp collections
- Wallpaper
- Greeting cards
- Stored artwork
I once inspected a home where the owner called about insects in the wardrobe. The clothing damage was relatively minor, but several shelves of family photo albums stored underneath had already suffered far more significant deterioration. The silverfish had been feeding on the binding glue for months.
Sometimes the wardrobe is simply the first clue that a much larger problem exists elsewhere in the house.
Why Cardboard Boxes Make Infestations Worse
Cardboard is one of the biggest attractions for silverfish.
It provides:
- A food source through paper fibres and adhesives
- Excellent hiding places
- Protection for eggs
- A humid environment that retains moisture
Many people unknowingly spread silverfish simply by moving cardboard boxes from one room to another.
A much better option is to replace old boxes with airtight plastic storage containers.
| Storage Method | Silverfish Risk |
| Cardboard boxes | High |
| Open shelving | Moderate |
| Fabric storage bags | Moderate |
| Airtight plastic containers | Low |
| Sealed glass containers (pantry items) | Very Low |
How to Stop Silverfish Before They Ruin More Belongings
Getting rid of silverfish isn’t about finding one magic spray.
Successful control comes from removing what keeps them alive in the first place.
Reduce Moisture Before Anything Else
If I could give Melbourne homeowners just one piece of advice, it would be this: fix the moisture first.
Otherwise, you’re treating the symptom instead of the cause.
Start with these steps:
- Repair leaking taps and pipes.
- Run exhaust fans during and after showers.
- Use a dehumidifier in damp rooms.
- Leave wardrobe doors open occasionally to improve airflow.
- Avoid overfilling wardrobes, which traps humid air.
- Monitor humidity if your home regularly feels damp.
These small changes often make a noticeable difference over time.
Store Clothes the Right Way
Proper storage makes your wardrobe far less inviting.
Good habits include:
- Wash clothes before storing them for the season.
- Avoid leaving perspiration on garments.
- Store clothing inside sealed plastic tubs.
- Replace cardboard boxes wherever possible.
- Keep wardrobes clean and dust free.
It’s an old saying, but an ounce of prevention really is worth a pound of cure.
Seal the Places Silverfish Use to Travel
Silverfish spend much of their lives hidden inside narrow gaps.
Check areas around:
- Skirting boards
- Door frames
- Window frames
- Plumbing penetrations
- Built-in wardrobes
- Electrical outlets
- Wall cracks
Sealing these entry points limits their ability to move throughout the home and helps reduce future infestations.
How to Get Rid of Silverfish Safely
Minor activity can often be managed through housekeeping and moisture control.
Larger infestations usually require a more comprehensive approach.
Natural Ways to Reduce Silverfish Numbers
Several non-chemical options can help reduce activity.
These include:
- Diatomaceous earth applied to dry wall voids and cracks
- Improved ventilation
- Lower indoor humidity
- Regular vacuuming behind furniture and inside wardrobes
- Removing old cardboard storage
No single method works overnight.
Think of silverfish control as gradually making your home less attractive until the population declines.
When Professional Silverfish Treatment Makes Sense
Sometimes the infestation has simply become too established for DIY methods.
Professional treatment is worth considering when:
- Silverfish appear every night.
- Multiple rooms are affected.
- Clothing and paper items continue to be damaged.
- Moisture issues have already been addressed.
- Activity continues despite your own efforts.
A thorough inspection is particularly important because silverfish often nest inside wall voids, roof spaces and other hidden areas that homeowners never see.
I remember a Melbourne family who first noticed two silverfish inside a wardrobe. They ignored them, assuming it wasn’t a major issue. Several months later they began finding insects in the laundry, bathroom, hallway cupboards and bookcase. The wardrobe wasn’t the source at all—it was simply where the infestation became visible. Once the moisture issue behind a leaking bathroom wall was repaired and targeted treatment was carried out, the silverfish numbers steadily declined.
That situation is more common than many people realise.
Protect Your Clothes Before Silverfish Spread Through Your Home
Silverfish do eat clothes, but they’re usually chasing the starches, body oils and organic residue left behind on natural fabrics rather than the clothing itself. That’s why a clean, dry and well-ventilated wardrobe is one of your best defences.
From experience, the homeowners who solve silverfish problems fastest are the ones who act early. They don’t wait until books, keepsakes and multiple rooms start showing signs of damage. They identify the moisture source, improve storage, remove hiding places and deal with the infestation before it becomes firmly established.
If you’re finding silverfish in your wardrobe, it’s also worth checking nearby bathrooms, laundries, roof spaces and storage areas. The insects you can see are often only part of the story. A thorough inspection and prompt action can help protect your clothing, valuable belongings and the rest of your home before a minor nuisance turns into a much larger pest problem.
