They are attracted to glue, book bindings, paper, sugar and textiles. Silverfish can destroy silks, cotton and other fabrics and may feast upon leather in the event of a famine. Silverfish inhabit dark, damp areas such as closets, attics and basements and will feed upon paper and linen stores in these locations
Silverfish are harmless. And no issue if there is just a few of them.
They are attracted to glue, book bindings, paper, sugar and textiles. Silverfish can destroy silks, cotton and other fabrics and may feast upon leather in the event of a famine. Silverfish inhabit dark, damp areas such as closets, attics and basements and will feed upon paper and linen stores in these locations
Do you keep your sofa in a dark damp location? If not then your safe.