Silverfish are a flat bodied, silvery scaled insect that are common in most households. They are starch and sugar eating bugs, which is one of the reasons they are often found between the pages of books. Their thin and tapered bodies are perfectly adapted to fit inside of book pages, and their starch fueled appetite will eventually cause considerable damage to both the binding, where the glue is, and the wood-pulp manufactured pages themselves. They also like damp places, and will feed on mold and fungi, which means they are also commonly found in bathrooms and laundry rooms too. Although they do not carry diseases and would rather stay hidden, they can become a true pest if their numbers become high enough. Fortunately, their are some good silverfish killers available that will effectively eradicate them.
Effectiveness and ease of use make it on to this list, but the best one will be safe to use in an organic formula.
The Safer Brand Diatomaceous Earth is a natural and organic way to control or eliminate a silverfish infestation. Sprinkle the powder around areas with known silverfish activity, and it will dehydrate the insects in less than 48 hours. Safe to use, non-toxic and effective. Read Full Review
The safest silverfish killer makes it to the top, and it's Safer Brand Diatomaceous Earth. It is made with the crushed and powdered shells of fossilized diatoms that are safe to use, non-toxic and can be used around kids and pets. Simply sprinkle the diatomaceous earth around known silverfish habitats and let it work. Although the particles resemble dust to us, they are actually tiny razor blades to insects. When they either ingest the particles or merely walk over them, the diatomaceous earth slices through their exoskeleton which causes the insect to dehydrate. It works best when distributed in dry areas, and can be used both indoors and outdoors with equal effectiveness.
Dekko Silverfish Paks have been the go-to measure when confronted with a silverfish infestation. It is essentially boric acid contained inside of paper sugar packets that the silverfish eat through to get at the boric acid. Because the boric acid is contained, they are relatively safe to use and effective when placed in areas where known silverfish inhabit. Read Full Review
For the most trusted name in silverfish control, get Dekko Silverfish Paks and rid your household of the insect pests. This solution has been around for decades and is the most widely used and widely known remedy for silverfish infestation. The "paks" are essentially sugar-type paper packets filled with boric acid. When placed in areas with known silverfish activity, the silverfish will eat through the paper packet and begin to ingest the boric acid inside. It works much like diatomaceous earth in that it dehydrates the silverfish inside and out. Although boric acid can be toxic, because these are packaged and therefore contained for use, it is safer than regular unpackaged powders and it is just as effective.
Control Solutions D-Fense Dust is a pyrethrin-based substance that is toxic to silverfish as they walk over it or clean it off their bodies. Although made from chrysanthemums, use caution when dusting to not breathe it in, and keep it away from kids and pets. Read Full Review
If you are looking for a pyrethrin-based compound that will rid your home of silverfish, Control Solutions D-Fense Dust is the product for you. Using the pyrethrin-based ingredient deltamethrin, it is a natural form of insecticide that disrupts the nervous system of silverfish. Dust areas of known silverfish activity, and when the silverfish walk over it, it will stick to their bodies and be absorbed by either contact or during cleaning of their bodies. Since it is synthesized from chrysanthemums, it is relatively safe as poisoning agents go, it is water soluble and washes off readily with water, but care must be taken when spreading the dust so that you don't inhale it. Always wear rubber gloves when dusting, and keep it away from kids and pets.
Nibor-D Borate Dust essentially starves a silverfish to death once the product has been ingested. Dust areas of silverfish activity, and in a few weeks the problem will be solved. Safe to use around kids and pets and it is considered a green and eco-friendly silverfish insecticide. Read Full Review
One of the safer dusts on this list is Nibor-D Borate Dust. It uses boron, which is considered a green substance pesticide, to interfere with silverfish metabolism. They ingest the dust and then can no longer process food. Essentially, they starve to death no matter how mush they eat. It is considered safe to use around kids and pets because mammals can effectively process borate dust and eliminate from their systems, although in very large amounts it can still become toxic. Dust areas where silverfish roam and in a few weeks, the silverfish will be eliminated. Simple, safe and effective.
J.T. Eaton Answer Boric Acid Insecticidal Dust has been in use for decades, and the boric acid ingredient is the standard by which all other silverfish pesticides are judged. It is relatively safe and effective, but care must be taken to avoid breathing it in, and always use gloves when dusting areas of silverfish habitat. Read Full Review
For a reliable and time-tested silverfish killer, J.T. Eaton Answer Boric Acid Insecticidal Dust has proven results for decades. Boric acid is one of the standard silverfish killers. When sprinkled where silverfish are known to congregate, the particles are abrasive to the exoskeleton both inside and out. It also acts much like borate powder in that it doesn't allow proper digestion of food, literally starving and dehydrating a silverfish to death. It is relatively safe to use, but always wear gloves when broadcasting the powder, and never inhale it as you go. It is simple to spread and effective, and has a proven track record that is the standard for silverfish elimination.