If you are in the San Francisco Bay Area, a silverfish infestation can be a real nuisance. Silverfish are wingless insects that have metallic scales. They are quite fast runners. Often found in homes with high humidity, they tend to live in dark, moist places.
One way to eliminate a silverfish infestation is to remove the source of their food. This can be food storage boxes or pet foods. You should also seal off any leaky pipes.
To kill silverfish, you can use boric acid. This is an inexpensive household cleaner. Boric acid works by killing the eggs that the silverfish lay. Try sprinkling it in cracks and crevices in your home, like in your basement.
You can also kill silverfish by putting cucumber peels on areas where they can enter your home. The odor of the fruit is not tolerated by these bugs.
You can also use insecticide dust to prevent a silverfish infestation. Apply it to storage boxes and electrical outlets. Aside from being effective, the spray is safe for kids and pets.
You can also try using a dehumidifier to dry out regularly wet areas. A fan can help you keep things dry, too.
Some experts advise against using aerosols. Since these must come into contact with the silverfish, they are not effective.
Sprays that contain silica gel and pyrethrin are very effective. These sprays remain active for several days to a few weeks.
Another solution is to sprinkle salt in damp areas. Salt is punitive, so pests will have a hard time resisting it.