How To Keep Pesky Silverfish Out Of Your Garage

Silverfish are shimmering pests that no one wants to see around. These primitive insects, with their fast movements and fish-like metallic scales, are more than just an eyesore; they're super destructive scavengers that feast on starches and adhesives. Because they love to chew through book bindings, vintage photos, wallpaper, and similar items, an infestation of them in your garage can quickly ruin your most precious keepsakes. Silverfish are drawn to garages because they're a sometimes-damp, undisturbed transition point between the wet soil of the outdoors and your climate-controlled home interior. To keep these garage-loving pests out for good, you'll need to tackle humidity, entry points, and food sources while adding preventative measures.

The first step to getting rid of silverfish is adjusting humidity. Silverfish thrive in areas with high humidity levels, so the best strategy here is to dry them out. If your garage feels tacky or has standing water, running a standalone dehumidifier makes it less inviting to them. Next, take a look at your garage's thresholds. Silverfish are incredibly flat and can slide through gaps that are as thin as a credit card. Walk through your garage during the day and look for any light bleeding in around the edges of your doors. If you see daylight, a silverfish has a way in to snack on your storage boxes.

Create a tight seal all around by replacing worn-out weatherstripping and adding a heavy-duty rubber door sweep. Feel free to grab a tube of silicone caulk and fill in cracks along the concrete foundation or around utility pipes. Strengthening the garage exterior helps prevent insects from getting inside.

Once you've sealed your garage perimeter, it's time to focus on what you're storing within it. Silverfish have a specific diet and feed on starchy adhesives found in cardboard boxes, clothing, and book bindings. If your garage is filled with boxes holding things like that, you're basically offering up a five-star buffet for the nasty critters. If you want to keep your things stored safely without giving silverfish a food source, you'll need to do a little rearranging. Shift your belongings into airtight plastic storage bins with locking lids, and toss out the cardboard for good. Not only does this protect your precious keepsakes from moisture and dust, but it also removes an enticing food source that keeps silverfish coming back for more.

And lastly, for an extra layer of protection, use the power of scent against them. Silverfish find certain smells absolutely repulsive, which can be used as natural deterrents near entry points or dark corners. Opt for strong scents like cedar shavings and cloves. Even cotton balls soaked in peppermint or lavender essential oils will send them packing for good.

For a more aggressive approach, try putting a light dusting of Diatomaceous Earth along the baseboards of your garage. This non-toxic powder is safe for pets, but it acts like microscopic shards of glass to insects; it also dehydrates them on contact without the need for harsher chemicals. By tackling humidity, entry points, and food sources, your garage will stay a clean extension of your home, not a breeding ground for these ugly little pests.