Natural Silverfish Prevention
Silverfish, sometimes called fishmoths, are wingless pests less than an inch in length and covered in scales. They commonly infest garages, closets, attics, showers, furniture, window and door frames, and boxes. Because infestations are difficult to manage, the best control method is to prevent their habitation in the first place.
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Description
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Silverfish thrive in dark, moist and cool environments, and dehydrate quickly in dry environments. They're named for their fishlike movement and blue-silver color. While they don't bite, they do chew. While the damage is minimal, it quickly accumulates over time as the pests reproduce and multiply in number. They can live up to a year without food.
Prevention
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Storage boxes are a prime target for silverfish.
The most important aspect of silverfish prevention is the reduction of humidity. Seal all windows and doorways to prevent moisture from accumulating. Ventilate problem areas such as attics and basements. If humidity continues to be a problem, consider the use of dehumidifiers and fans. After using the shower, close the door immediately and run fans.
In regards to storage, avoid starching clothes as this makes them a prime target for silverfish. Avoid stacking boxes directly on the floor or in contact with the wall. Silverfish also will eat wallpaper glue, so make sure to reattach loose corners. Likewise, cover cracks and holes in baseboards.
Silverfish prefer temperatures between 70 and 80 degrees Fahrenheit.
Infestation
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Once an infestation occurs, it is very hard to eliminate silverfish. While there are commercial products designed to kill silverfish, most of these contain harmful toxins. The simplest approach to getting rid of silverfish involves eliminating the sources of food and moisture and lighting up the infested area, although this may only serve to drive them into a new area.
The best silverfish repellent is cucumber peelings, which should be laid out throughout the infested and surrounding areas.
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