To:Nancy Hartman; I've had good success with diatomaceous earth, like they sue in pool filters, for ants. It is made up of tiny fossel shells that have microscopic sharp edges that get caught in the ants' exoskeleton & pierce the membrane & they dehydrate to terminal state. ( I hate the "D" word as I've had too much experience with it lately). Anyway, I'm not sure if it will work on silverfish, but it's non toxic, & I've even heard of people feeding it to farm animals to rid them of internal paracytes! Good luck, Gary [Posted in FML issue 1303]