I live in Florida. I had an infestation of silver fish, when someone brought me over a folding table to use that was full of them. I left the table in the garage. I had and always put out Ant traps through out my home and in the garage. They all died with the Ant traps. I also put Borax at each entrance to my home on the inside. Silverfish have an exoskeleton (hard outer shell). Borax kills any insect with an exoskeleton because the powder dries out and cracks their shell and they die. Borax also kills fleas, cockroaches, earwigs, etc.
I live in Florida. I had an infestation of silver fish, when someone brought me over a folding table to use that was full of them. I left the table in the garage. I had and always put out Ant traps through out my home and in the garage. They all died with the Ant traps. I also put Borax at each entrance to my home on the inside. Silverfish have an exoskeleton (hard outer shell). Borax kills any insect with an exoskeleton because the powder dries out and cracks their shell and they die. Borax also kills fleas, cockroaches, earwigs, etc.