How to prevent silverfish from reappearing?

How to prevent silverfish from reappearing?

Silverfish are most afraid of dryness. Controlling indoor temperature and humidity effectively prevents them from reappearing.

Core measure: Humidity control

Silverfish need relative humidity above 75% to survive. Keeping indoor humidity below 50% causes them to dehydrate and die. How to do it:

1. Dehumidifier, run it 2-4 hours daily during humid seasons (spring rains, rainy season) to reduce indoor humidity below 50%.
2. Ventilation, open windows on good-weather days to create air circulation.
3. Wardrobe drying, place desiccants or moisture-absorbing bags in the wardrobe; replace regularly.
4. Air conditioner dehumidification, use dehumidification mode when running AC in summer.
5. Temperature control, silverfish are most active at 20-30°C and stop activity below 10°C. Low temperatures alone cannot kill them; they may return when temperatures rise.

Reduce food sources

Silverfish eat starchy and sugary materials. Reduce these sources:

6. Seal food, store flour, sugar, biscuits, etc., in airtight containers; do not store food near bookshelves or wardrobes.
7. Wash clothes before storing, wash seasonal clothes before storage; sweat and food stains attract silverfish.
8. Keep books dry, store unused books in sealed boxes to reduce exposure of binding glue.

Physical isolation

4. Sealed storage, store unworn clothes in vacuum compression bags or sealed bags.
5. Cardboard box management, do not use cardboard boxes for long-term storage; switch to plastic boxes.
6. Fill gaps, seal baseboard, floor, and wall crevices with silicone caulk to reduce hiding space.

Regular inspection

4. Check bookshelves, behind wardrobes, and under beds every 1-2 months.
5. Early detection and treatment, a few silverfish can be swept away or vacuumed.
6. Regularly spray dinotefuran-containing household insecticide on baseboards and corners as preventive treatment (once every 2-3 months is sufficient).

The key to silverfish control is "dryness", once the environment is dry, silverfish will naturally disappear.