Look beyond the first hole
Photograph the damage and note where the shirt was stored. Was it folded with other wool garments, hanging in a busy wardrobe or packed away for months? Examine cuffs, folds and seams, then inspect neighboring items without mixing them into clean storage.
University of California IPM’s clothes-moth guide explains that larvae cause feeding damage and may leave silken webbing on affected items. Photograph any webbing or insects as well as the hole. A flying moth elsewhere in the house does not establish that clothes moths caused the damage.
Keep other possibilities open. Repeated wear at a belt buckle or bag contact point can produce holes too. Our hole-diagnosis guide helps organize those clues. A photograph cannot always settle the cause, especially after a garment has been washed or moved.
Separate assessment from treatment
Keep suspect items contained while you identify the problem. Do not put them into a box of freshly cleaned shirts just because the visible hole is small. Check wool blankets, scarves and other nearby susceptible textiles as part of the assessment rather than focusing only on the favorite tee.
Cleaning the storage area and inspecting surrounding items matter because repairing the shirt would not remove an infestation. If you find repeated damage or signs you cannot identify, seek help from an appropriate pest professional or local extension service.
Tell anyone advising you that the garment is merino and show its care label. A pest-control method that involves heat or a particular chemical may conflict with the fabric’s permitted care. Protecting the shirt and addressing pests must be considered together.
Avoid the freezer and repellent guesswork
Do not rely on a casual “put it in the freezer overnight” instruction. Treatment effectiveness depends on conditions and method; a household appliance setting alone does not demonstrate that the whole item received an effective treatment. Obtain a complete procedure from an authoritative pest-management source when that method is appropriate.
Likewise, do not turn a repellent fragrance into an all-purpose solution. UC IPM notes limited knowledge about the effectiveness of herbal repellents in storage. A scented sachet does not establish that an affected garment is now pest-free.
Use any pest product only as its label directs and for the intended situation. Never apply a product directly to a shirt because an online comment says it worked. If instructions and garment care are incompatible, choose a different professionally advised approach.
Reset storage once the problem has been addressed
Return only clean, dry, pest-free items to appropriate closed storage. Keep a record of which container held affected garments so you can inspect it again. The seasonal-storage guide covers organizing shirts without mixing unresolved repairs into the ready-to-wear pile.
Before mending a hole, assess the surrounding fabric. Several weak patches may change whether the shirt is worth repairing. If the rest remains sound, a small repair could preserve a useful garment; the repair-or-replace guide explains that decision.
Do all small holes in merino mean clothes moths?
No. Abrasion, snags and other damage can also create holes. Inspect the pattern, nearby garments and storage area, and seek identification when the cause is unclear.
Can I just wash a damaged shirt and put it away?
Do not assume an ordinary care-label wash resolves every pest problem. Identify the cause and use an appropriate pest-management method compatible with the garment before returning it to unaffected storage.
