How To Get Rid Of Earwigs On Plants

If you’ve noticed ragged holes in your leaves and tiny, fast-moving insects with pincers on their rear, you’re likely dealing with an earwig problem. Learning how to get rid of earwigs on plants is key to protecting your garden without resorting to harsh chemicals. These nocturnal pests can damage seedlings, flowers, and soft fruits, but with a few effective natural strategies, you can take back control.

This guide will walk you through simple, proven methods. We’ll cover identification, prevention, and a range of natural controls that really work. You can manage these pests and keep your garden thriving.

Earwigs are primarily nocturnal and seek out dark, damp hiding places during the day. The key to control is disrupting their habitat and creating traps that exploit their behavior. A combined approach is often the most effective way to reduce their numbers quickly.

Understanding Your Garden Enemy

Before you start, make sure you’re dealing with earwigs. Look for these signs:

Chewed leaves, flowers, and young seedlings with irregular, ragged edges.
Small holes in petals, often seen on dahlias, zinnias, and marigolds.
Presence of the insects themselves: reddish-brown bodies about 3/4 inch long with distinctive pincers (cerci) at the tail end.
They are most active at night, so go out with a flashlight after dark to confirm.

It’s worth noting that earwigs also eat aphids and other small pests. A small population might not be a bad thing, but when their numbers grow, damage becomes obvious.

Immediate Action: Trapping and Manual Removal

When you see damage, start with these quick traps to reduce the population overnight.

The Rolled Newspaper Trap

This is a classic and highly effective method. Simply roll up a section of newspaper, dampen it with water, and tie it loosely with string. Place these rolls near affected plants in the evening.

Earwigs will crawl inside to hide for the day. In the morning, shake the trapped earwigs into a bucket of soapy water to dispose of them.

The Oil and Soy Sauce Trap

Use a shallow container like a tuna can or plastic cup. Bury it so the rim is level with the soil.

Fill it halfway with a mix of vegetable oil and a dash of soy sauce.
The soy sauce attracts them, and the oil traps and suffocates them.
Check and refresh the traps every few days.

Manual Removal at Night

Put on your headlamp and head out after dark with a bucket of soapy water. Knock earwigs off plants directly into the bucket. This can be surprisingly effective for small gardens.

Creating an Unfriendly Environment

Long-term control is about making your garden less inviting. Earwigs love moisture and clutter.

Remove hiding spots: Clear away piles of debris, old boards, mulch right against plant stems, and excess leaf litter near your garden beds.
Reduce moisture: Water your plants in the morning so the soil surface dries by evening. Fix leaky faucets and improve drainage in wet areas.
Keep a clean perimeter: Trim grass and weeds around garden edges to eliminate damp harborage sites.

Sometimes, moving mulch a few inches away from plant bases can make a big difference. It removes their highway right to your plants.

Natural Repellents and Barriers

These methods help protect vulnerable plants directly.

Diatomaceous Earth (DE)

Food-grade diatomaceous earth is a fine powder made from fossilized algae. It’s sharp on a microscopic level, deterring soft-bodied insects.

Lightly dust a dry ring of DE around the base of plants or on soil where earwigs travel.
Important: Reapply after rain or watering, as it loses effectiveness when wet.

Petroleum Jelly Barrier

For plants in containers or on raised beds, smear a thick band of petroleum jelly around the pot rim or bed leg. Earwigs find it difficult to crawl across this sticky barrier.

Essential Oil Sprays

Create a simple repellent spray. Mix 10-15 drops of essential oil like peppermint, lavender, or citronella with a few drops of dish soap and a quart of water in a spray bottle.

Shake well and spray around plant bases and on leaves in the early evening. Test on a few leaves first to check for plant sensitivity.

Encouraging Natural Predators

Let nature help you out. Birds, toads, frogs, and some beneficial insects eat earwigs.

Install bird baths, bird houses, or a small toad abode (an upside-down clay pot with a door chipped out) to encourage these predators to take up residence in your garden.
If you have chickens or ducks, they are excellent at foraging for earwigs (just protect tender seedlings from them).

Protecting Specific Plants

Seedlings and certain flowers need extra care.

For seedlings: Use a physical barrier like a cut-off plastic bottle or a cardboard collar pushed into the soil around each plant.
For prized dahlias or roses: Try the newspaper trap method right at the plant’s base. You can also apply DE to the stems.

Regular monitoring is crucial. Catching a problem early makes control much easier and prevents a full-blown infestation.

What Not to Do

Avoid common mistakes that can worsen the situation or harm your garden ecosystem.

Don’t use broad-spectrum pesticides. They kill beneficial insects that prey on earwigs and other pests.
Avoid over-mulching. A thick, damp layer of mulch is an earwig paradise. Use a thinner layer or a drier material like straw.
Don’t ignore the problem. Earwig populations can grow rapidly, especially in warm, wet weather.

FAQ: Natural Earwig Control

What is the fastest way to kill earwigs naturally?

The oil and soy sauce trap or the rolled newspaper trap are the fastest natural methods. You’ll see results literally overnight by removing dozens of pests at once.

What smells do earwigs hate?

Earwigs are repelled by strong scents like peppermint, lavender, citronella, and lemon. These can be used in diluted essential oil sprays around the garden perimeter.

Does vinegar get rid of earwigs?

While a vinegar and water solution can kill earwigs on direct contact, it’s not a great repellent and can harm your plants soil acidity. It’s better used as a direct spray for insects you see, but traps are generally more effective for population control.

Why are there so many earwigs in my garden this year?

Wet, mild springs and summers often lead to population booms. An abundance of hiding places (mulch, debris) and moisture from overwatering or rain creates their ideal habitat. Cleaning up and reducing moisture are key first steps.

Are earwigs actually bad for my garden?

They have a dual role. While they damage tender plants, they also consume decaying organic matter and prey on aphids, mites, and other insect eggs. The goal isnt total eradication, but management to keep their numbers below a damaging threshold.

By combining these strategies—trapping, habitat modification, and barriers—you can effectively manage earwigs in your garden. Start with the simple traps tonight, and then work on cleaning up their hiding places tomorrow. Consistency is more important than any single magic solution. With a little patience and these natural techniques, your plants can recover and flourish without the need for harsh interventions.