The most effective natural earwig controls combine simple homemade traps with changes to your garden’s environment that make it less hospitable to these nocturnal pests. Traps using soy sauce and vegetable oil, rolled damp newspaper, and strategic cleanup of hiding spots can dramatically reduce earwig numbers without any chemical pesticides. Before you start, though, it’s worth knowing that earwigs aren’t always the enemy.
Check Whether You Actually Need to Act
Earwigs are omnivores, and they’re surprisingly helpful in many gardens. They’re voracious predators of aphids, insect eggs, and other soft-bodied pests, and can provide significant biological control under the right circumstances. If your garden is mostly lawn, trees, native plants, or mature woody shrubs, earwig damage is unlikely to be a concern at all.
The plants that do suffer from earwigs are specific: vegetable seedlings, herbaceous flowering plants, sweet corn, strawberries, apricots, and other soft fruits. Earwigs chew ragged holes in leaves (especially on young plants), shred flower petals, and tunnel into ripening fruit. If you’re seeing this kind of damage on vulnerable crops, it’s time to intervene. If your established perennials just have a few earwigs crawling around, those earwigs may be eating more aphids than leaves.
Soy Sauce and Oil Traps
This is one of the simplest and most effective DIY earwig traps. The soy sauce attracts earwigs with its fermented scent, and the oil layer on top prevents them from escaping once they fall in.
Fill a small container (a yogurt cup, tuna tin, or small jar) about one-third full with water. Add two tablespoons of soy sauce, then pour in enough vegetable oil to form a thin layer across the surface. You don’t need much oil, just enough to coat the top. Bury the container in the soil so the rim sits slightly above ground level. This keeps surrounding dirt from falling in and clogging the trap.
Cover the trap with a plastic lid or plant pot saucer propped up on four small stones. The cover serves two purposes: it shelters the trap from rain (which would flood and ruin it) and creates a dark, sheltered gap around the edges that earwigs naturally crawl toward. Place these traps near woodpiles, rock borders, garden debris, or right next to seedlings you’re trying to protect. Check and refresh them every few days.
Rolled Newspaper Traps
Earwigs are nocturnal and spend daylight hours hiding in tight, damp crevices. A rolled newspaper exploits this habit perfectly by offering an irresistible daytime shelter that you simply pick up and throw away.
Cut a section of newspaper into four pieces. Spray them lightly with water so they’re damp but not soaking. Loosely roll the pieces together, folding them over on themselves to create plenty of nooks and crannies inside. You want the roll to be roughly the width of a garden hose. Secure it with an elastic band or a strip of duct tape so it holds its shape.
Set the traps at the base of affected plants around dusk, when earwigs become active. By morning, the rolls will be packed with earwigs that crawled in overnight. Pick up the whole trap, drop it in a plastic bag, tie it shut, and toss it. If you keep chickens, they’ll happily eat whatever you shake out of the rolls. You can also relocate the earwigs far from your garden if you prefer a non-lethal approach. Repeat nightly until the population drops to a manageable level.
Diatomaceous Earth
Food-grade diatomaceous earth is a fine powder made from fossilized algae. It works by damaging the thin waxy coating on an insect’s body, causing it to dehydrate. Sprinkle it around the base of plants where you’re seeing earwig damage. It’s effective against earwigs, aphids, caterpillars, and other soft-bodied pests.
The biggest limitation is moisture. Once diatomaceous earth gets wet, it stops working entirely. You’ll need to reapply after every rain and after watering. For this reason, it works best during dry stretches or in sheltered spots. Apply it in the evening so it’s in place during earwigs’ active hours overnight. Keep in mind that it isn’t selective: it will affect any insect that crawls through it, including beneficial ones like ground beetles.
Neem Oil for Direct Contact
Neem oil works as a smothering agent that suffocates insects on contact. The key word is “contact.” It only kills earwigs you actually hit with the spray, and it washes off easily with heavy dew or rain. This makes it a poor standalone strategy but a useful supplement when you spot earwigs actively feeding on plants.
Apply neem oil once a week to plants that are being damaged, spraying in the evening when earwigs are out and feeding. It won’t leave a residual effect, so timing matters more than coverage. Think of neem as a way to knock down visible earwigs in the moment rather than a long-term population control method.
Reduce Earwig Habitat
Traps catch earwigs that are already in your garden. Cultural changes prevent new ones from settling in. Earwigs thrive in moist, cluttered environments with plenty of daytime hiding spots, so removing those conditions is the most lasting form of control.
Start by clearing debris they shelter under: fallen leaves, stacked lumber, bricks, pots, and thick plant residue. Thin out or pull back mulch in beds where earwig damage is worst. Dense mulch layers create exactly the cool, damp environment earwigs prefer, and reducing mulch depth from several inches to one inch or less makes a noticeable difference.
Watering habits matter too. Earwigs are drawn to surface moisture, so switching to deeper, less frequent watering keeps the top layer of soil drier between sessions. Make sure your beds drain well and that irrigation systems aren’t creating persistently soggy patches. Good drainage alone won’t eliminate earwigs, but combined with habitat cleanup and trapping, it shifts conditions away from what earwigs need to build large populations.
Protecting Seedlings and Soft Fruit
Young vegetable seedlings and annual flower starts are the most vulnerable targets. If you’re direct-sowing seeds or transplanting starts during earwig season, place soy sauce traps or newspaper rolls around the planting area from day one rather than waiting until you see damage. Earwigs can devastate a flat of seedlings in a single night.
For soft fruits like strawberries, raise fruit off the ground with straw or small supports to reduce contact with soil-dwelling earwigs. Harvest ripe fruit promptly, since overripe or split fruit attracts earwigs and gives them easy entry points. On sweet corn, earwigs feed on the silks, which can interfere with pollination. Traps placed at the base of corn stalks during silking help reduce this damage during the critical window.
The most effective natural earwig management combines two or three of these approaches at once. Traps reduce the active population, habitat changes make your garden less appealing long-term, and targeted protection keeps your most vulnerable plants safe during their most susceptible growth stages.