Make your own silverfish trap by covering the outside of a glass jar with masking tape to help the critters crawl in then put crackers or something starchy in the bottom of the jar as bait.
How to kill silverfish in attic.
Silverfish depend on moisture and food to survive.
Coat index cards with the paste allow it to dry and use as sticky traps.
In many cases dehumidification can go a long way toward rousting the silverfish out of your home.
If you have these insects in your attic there are a few things you should be aware of.
If you have books in your attic these insects can do quite a bit of damage to them.
Also silverfish like damp areas.
The silverfish crawl in but they can t get out.
To get rid of them you only need to get rid of both moisture and food.
Silverfish will even feed on hair strands that have fallen off your head.
If you live in a wet area and you have no leaks then you need a dehumidifier.
Sprinkle diatomaceous earth in cabinets and other dark areas.
Silverfish eat the cellulose in paper products and the glue found in the bindings of books.
If you have stored photos silverfish can chew their way in and ruin those photos.
Buy a chemical spray.
Make a paste of flour water and boric acid.
Hvac units can leave houses pretty dry particularly in the winter and that will make these bristletails very uncomfortable.
You can start by vacuuming your house.