To effectively manage silverfish populations in critical areas, several proactive measures can be taken:

1. Eliminate Clutter: Remove and dispose of old stacks of newspapers, magazines, papers, and boxes of clothes destined for donation. Silverfish thrive in such environments, so minimizing clutter reduces their harborage areas.

2. Freeze Infested Items: Items infested with silverfish, such as books, can be placed in a freezer set below 0°C for 4-7 days. Wrap the items tightly in plastic to prevent condensation damage during thawing. This freezing process effectively eliminates silverfish and their eggs, providing a non-toxic solution for preservation.

3. Barrier Spray Application: Apply an insecticide spray around the perimeter of rooms to create a barrier intercepting silverfish moving from wall voids and under baseboards into living spaces. This preventive measure helps contain and deter silverfish activity.