Clothes Moth

How to Identify Clothes Moths

• Adult size: 6–8 mm wingspan — small, buff-coloured, and easily overlooked
• Adult colour: Uniform golden-buff or straw yellow — no distinctive markings
• Flight: Weak fliers; avoid light and run rather than fly when disturbed
• Larvae: 1–12 mm, creamy white with a brown head — the actual damaging stage
• Larval cases: Webbing clothes moth larvae spin silk tubes or cases around themselves as they feed
• Eggs: Tiny, white, oval — laid directly on the food source (fabric)
• Distinguish from pantry moths: Clothes moths are smaller, uniform buff colour, and avoid light; pantry moths are larger with two-toned wings and fly toward light

Biology & Life Cycle

• Eggs per female: 40–50, laid directly on the food source
• Incubation: 4–10 days in warm conditions
• Larval stage: 2–30 months depending on temperature and food availability — the longest and most damaging stage
• Pupal stage: 8–10 days
• Adult lifespan: 2–4 weeks — adults do not eat; they only mate and lay eggs
• Preferred temperature: 15–35°C; development slows significantly below 10°C
• Preferred food: Wool, cashmere, silk, fur, feathers, leather, and any natural protein fibre
• Preferred conditions: Dark, undisturbed, humid spaces — storage boxes, closets, under furniture

Risks & Damage

• Fabric destruction: Larvae chew irregular holes through wool, cashmere, silk, and other natural fibres
• Rug damage: Oriental and wool rugs are particularly vulnerable — larvae feed on the pile from underneath
• Upholstery damage: Wool and silk upholstery on furniture can be severely damaged
• Heirloom textiles: Stored vintage clothing, tapestries, and museum-quality textiles are at high risk
• No health risk: Clothes moths do not bite, sting, or transmit disease
• Economic impact: A single infestation can destroy thousands of dollars worth of clothing and textiles

Signs of Infestation

• Irregular holes in wool, cashmere, silk, or fur garments — not clean-cut like moth holes in cartoons
• Silky webbing or silk tubes on fabric surfaces — the larval feeding tubes
• Larvae: Small, creamy white caterpillars on or in fabric
• Adult moths: Small, buff-coloured moths running along walls or floors in dark areas
• Shed larval cases: Papery, silk-lined cases on fabric or in storage areas
• Fecal pellets: Tiny, sand-like pellets the same colour as the fabric being eaten
• Damage pattern: Concentrated in dark, undisturbed areas — under collars, in folds, along seams

Prevention

• Dry clean or wash all wool and natural fibre garments before storing — larvae cannot survive laundering at 60°C
• Store clean garments in sealed, airtight bags or containers — not cardboard boxes
• Use cedar blocks or lavender sachets in closets — repels adults but does not kill larvae
• Vacuum closets, drawers, and storage areas regularly — including corners and baseboards
• Inspect second-hand clothing and vintage textiles before bringing them home
• Store valuable rugs rolled and wrapped in sealed plastic when not in use
• Maintain low humidity in storage areas — moths prefer humid conditions
• Inspect stored items every 3–6 months for early signs of damage

Professional Treatment

Frequently Asked Questions