Of all the insect infestations you can be cursed with, silverfish might just be the most skin-crawling — right after cockroaches, of course. Silverfish are mostly a (super-creepy) nuisance pest, but they can destroy books, wallpaper, and clothes with their excrement, according to the experts at Penn State’s Department of Entomology Cooperative Extension program. If you find silverfish in your home, you definitely want them gone fast, but pesticides aren’t the only way to go.
Follow these steps for an effective pest-control plan.
1. Seal Up Food
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You don’t want to pour out a bowl of your favorite cereal just to find it’s swimming with these squirming insects. Penn State recommends sealing dry goods like cereal, pasta, rice, quinoa, flour, sugar, and pet food in sturdy, airtight containers to prevent silverfish from reaching these tempting food sources.
2. Reduce Humidity
Silverfish thrive in moist, humid environments, says James Norton of Fantastic Pest Control in London. Take away their favorite conditions by using a dehumidifier in damp basements, sealing up leaky pipes, and making sure the bathroom is well ventilated. You should also keep the weather out by sealing up exterior cracks with caulk and making sure gutters and downspouts are clear so water can run down and away, according to Penn State.
3. Clear Clutter
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Silverfish also love hiding in — and feasting upon — old papers, magazines, and books, so if you tend to save every piece of paper that crosses your desk, you might need to do some clearing out. Get rid of the stuff you haven’t looked at in forever, and store items you can’t bear to part with in airtight bins, especially if the papers are kept in the basement or attic.
4. Sprinkle Diatomaceous Earth
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Diatomaceous Earth, or DE, is a white crumbly powder consisting of the fossilized remains of diatoms, a class of algae. When silverfish come in contact with DE, it destroyers their outer waxy coating, causing them to lose moisture and die. You can sprinkle it around the baseboards in your home, and other places you’ve seen silverfish.
Norton recommends applying it in the evening, since silverfish are nocturnal, and for several nights in a row in order for it to work. Purchase DE on Amazon or at a local home improvement store.
5. Try Some Traps
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To speed up these management strategies, add a few traps into the mix. You can buy small packets (like these) designed to trap and poison silverfish with boric acid.
Hide them in places where you’re likely to encounter the creepy crawlies, like bookshelves, dresser and desk drawers, under the sink, and in the basement and attic. Note that boric acid can be toxic if swallowed, so keep the traps where kids and pets can’t get to them and away from where you store food.
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