Cynthia from Austin, Tx writes
How often?
Demon WP Insecticide would be a great product for silverfish. It should be applied once a month outside and once every 3 months inside. We have a great video that shows where to spray for perimeter and interior spraying. Please click on the link here to see the video. We also have a great guide here for controlling them that might help.
Answer last updated on: 11/21/2016