Getting rid of moths starts with identifying which type you have, then eliminating the larvae that cause the actual damage. Adult moths flying around your home are a nuisance, but they’re not the problem. Their larvae are, quietly eating through your sweaters or dry goods while hidden from view. The approach differs depending on whether you’re dealing with clothes moths or pantry moths, so figuring that out comes first.
Clothes Moths vs. Pantry Moths
Clothes moths are small, about a quarter inch long, with golden, spotless wings that fold flat against their bodies. They avoid light and tend to scurry rather than fly when disturbed. You’ll find their damage in hidden spots: under collars, inside cuffs, in the folds of stored clothing or upholstered furniture. The larvae are shiny white with brown heads, and they often spin silken tubes or patches on the fabric they’re eating. They feed on wool, fur, feathers, silk, leather, and even cotton or synthetics blended with animal fibers. They’re especially drawn to items stained with sweat, body oils, food, or beverages.
Pantry moths (also called Indian meal moths) are larger, about half an inch long, and they’re attracted to light. You’ll spot them flying around kitchens and pantries. Their larvae infest dry goods: flour, cereal, pasta, nuts, dried fruit, and spices, particularly red pepper, paprika, and chili powder. If you open a bag of flour and see webbing or small worms, that’s your answer.
How to Eliminate Pantry Moths
Start by inspecting every container of dry food in your pantry. Open boxes, bags, and jars and look for webbing, small caterpillars, or clumping that shouldn’t be there. Anything infested gets thrown away immediately, sealed in a trash bag and taken outside. Don’t try to salvage questionable items.
Once you’ve removed infested food, empty your shelves completely. Vacuum every surface, paying close attention to cracks, corners, and shelf supports where eggs and larvae hide. Then wash the shelves with warm soapy water. Do not spray insecticides in food storage areas.
Before restocking, transfer dry goods into glass jars with rubber gasket seals, hard plastic containers, or metal canisters with tight-fitting lids. Pantry moth larvae can chew through thin plastic bags and cardboard, so the original packaging isn’t enough. Products you don’t use frequently, like specialty flours, nuts, and dried chili peppers, can go straight into the freezer for long-term storage. Clean up food spills promptly going forward, since even small amounts of scattered grain or flour can sustain a new generation.
How to Eliminate Clothes Moths
The larvae do all the damage, so your goal is to kill them at every life stage: eggs, larvae, and pupae. Adult clothes moths don’t eat fabric at all.
For washable items, launder them for 20 to 30 minutes in water that’s at least 120°F. This kills all stages of the moth. Many wool and silk items can’t handle hot water, though, so dry cleaning is the safer route for delicate garments. The chemicals and heat used in dry cleaning are effective against moth larvae and eggs.
For items that can’t be washed or dry cleaned (heavy blankets, vintage textiles, stuffed animals), seal them in a plastic bag and place them in a freezer set below 18°F for several days. This kills larvae and eggs through sustained cold exposure.
While treating your clothing, vacuum the closet or storage area thoroughly. Hit the baseboards, carpet edges, corners, and any crevices where lint and hair accumulate. Moth larvae thrive on dust, lint, and pet hair, so removing these food sources is essential. Wipe down shelves and rods with warm soapy water afterward.
Pheromone Traps for Monitoring
Sticky pheromone traps are widely available for both clothes moths and pantry moths. They work by releasing a synthetic version of the scent female moths produce to attract males. Males fly to the trap and get stuck, which helps you gauge how severe your problem is and whether your cleanup efforts are working.
These traps have real limitations, though. They only catch male moths, so they won’t eliminate an active infestation on their own. Females already in your home can continue laying eggs even while males are being trapped. Think of pheromone traps as a monitoring tool, not a solution. Place them near problem areas (inside closets, on pantry shelves) and check them weekly. If you’re still catching moths after a thorough cleaning, you’ve missed a source.
Cedar, Lavender, and Other Natural Repellents
Cedar and lavender are popular natural moth deterrents, and they do have a real mechanism behind them. The volatile oils in both plants, particularly compounds like those found in cedarwood and lavender, create what researchers describe as “olfactory noise.” This interferes with the pheromone signals female moths use to attract males, making it harder for moths to breed in the treated area. These same compounds act as broad-spectrum deterrents that make the environment inhospitable for larvae.
The critical caveat: cedar and lavender are repellents, not killers. They can help prevent an infestation from taking hold, but they cannot cure an existing one. If you already have larvae eating through your wool sweaters, cedar blocks alone won’t stop them. Use these after you’ve already cleaned, laundered, and eliminated the active problem.
Cedar also loses potency over time. In humid climates, cedar blocks or balls need to be lightly sanded with fine sandpaper every few months to expose fresh wood and release new oils. Without this maintenance, the wood’s pores close up and the repellent effect fades, sometimes within about three months.
Why You Should Skip Mothballs
Traditional mothballs work, but they come with serious health risks. They’re made of either naphthalene or paradichlorobenzene, both of which slowly convert from solid form into toxic vapor. When you smell mothballs, you’re inhaling insecticide. They’re particularly dangerous around children and pets. A single mothball can cause serious harm if eaten by a small child, and pets or wildlife can mistake them for food.
Given that hot washing, freezing, dry cleaning, and proper storage all eliminate moths effectively, mothballs are an unnecessary risk for most household situations.
Preventing Moths From Coming Back
Long-term prevention comes down to eliminating what moths need: undisturbed food sources.
- Store off-season clothing clean. Never put away wool, silk, or fur items without washing or dry cleaning them first. Sweat, skin oils, and food stains are what make fabrics attractive to moth larvae in the first place.
- Use sealed storage. Garment bags with zippers, airtight plastic bins, or vacuum-sealed bags keep adult moths from reaching your clothing to lay eggs. Cedar blocks inside sealed containers add an extra layer of deterrence.
- Rotate and inspect regularly. Moths prefer undisturbed items. Clothing you wear frequently is rarely affected. Periodically take out stored items, shake them, and check for signs of damage, especially along folds, seams, and hidden areas.
- Vacuum often. Regular vacuuming along baseboards, under furniture, and inside closets removes the lint, hair, and dust that sustain moth larvae between meals of your favorite sweater.
- Seal pantry staples. Keep all dry goods in hard-sided containers with tight lids. Freeze bulk purchases for a few days before transferring them to storage, which kills any eggs that may have been present at the time of purchase.