Hi Suzanne. I'm Cindy. You can make your own traps. You will need a few glass jars, masking tape, and a slice or two of bread. Begin by wrapping the jars in masking tape all the way to the top. Then put a piece of bread in the jar as the bait. Before you go to bed, place the jars in areas that you suspect are good silverfish hunting grounds. The masking tape will allow the silverfish to climb into the jar. But the smooth glass on the inside will prevent them from climbing out.
To prevent silverfish inside infestations, eliminate sources of excessive moisture in places like faulty plumbing and areas of condensation. Silverfish love the humidity. The use of a dehumidifier will reduce moisture content in the air that is essential to silverfish survival. Silverfish can not survive inside buildings in low relative humidity If the relative humidity is above 50% year-round in an air-tight house, silverfish infestations may be difficult to control.
Reduce cluttter and food sources. Regularly vacuum cracks and crevices around the home with a narrow tip. Remove easily accessible food sources such as flour, cereals, and pet foods by storing pantry food in tight containers to reduce food sources.
Hi Suzanne: Here are a couple of sites that may help:
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I can confirm this works really, really well :)