Ragged leaves and chewed seedlings can turn up quickly when earwig numbers climb. These insects hide in cool, damp places during the day, then come out at night to feed on flowers, vegetables, and young plants.
The good news is that a few earwigs usually aren’t a problem. In fact, they can eat other garden pests. Trouble starts when there are enough of them to damage new growth. Regular checks, simple traps, less moisture, and targeted treatments when needed can help protect your plants without treating the entire yard.
Start With the Places Earwigs Hide
Homeowners spend hours selecting flowers, planting seeds, and tending garden beds each spring. Before reaching for a pesticide, check the places where earwigs are most likely to spend the day.
Look under flowerpots, stepping stones, mulch, boards, and other cool, damp areas close to plants. Reducing these hiding places can make the garden less inviting.
When earwig numbers get too high to manage with traps and cleanup alone, some homeowners turn to earwig extermination services to find problem areas and control larger infestations. Whether you hire help or handle it yourself, focus on where earwigs feed and hide rather than treating the whole yard.
Understand the Earwig Life Cycle
Soil structure can provide shelter for earwigs and other overwintering pests. A research guide published by the University of California Agriculture and Natural Resources notes that female earwigs dig cells in the ground in fall and winter, where they can lay masses of 30 or more eggs.
When spring arrives, young earwigs emerge and begin searching for food. Tender seedlings and flower petals can become easy targets, especially when populations are high.
A few earwigs are fine. The same UC guide notes that they also eat aphids, so there’s little reason to try to eliminate every earwig from the yard. The goal is to keep their numbers low enough that they aren’t causing significant plant damage.
Clearing away debris and damp hiding places in fall and early spring can help. If numbers remain high and plants continue to suffer damage, targeted treatment may be worth considering.
Match the Treatment to Your Yard
Modern pest management favors precise, localized actions over treating the entire yard. Before deciding how to control earwigs, check which parts of your garden stay wet or shaded for long periods.
Pay particular attention to:
- Damp areas around hose bibs, birdbaths, and irrigation equipment.
- Water collecting beneath potted plant trays.
- Thick ground cover near foundations and decks.
- Mulch, boards, stones, and other objects that provide dark hiding places.
Start by correcting the conditions that attract earwigs. Move pots when necessary, remove unnecessary debris, and avoid leaving the soil surface wet overnight.
If you use bait or another pest-control product, choose one labeled for the pest and location you’re treating and follow the product directions carefully. Focus treatment on problem areas rather than applying it throughout the entire garden.
Check the Garden Regularly
Catching pest activity before plants suffer severe damage makes control much easier. Educational material from Colorado State University Extension emphasizes that regular monitoring throughout the growing season is a cornerstone of integrated pest management (IPM).
Check leaf undersides, garden borders, mulch, and the soil around vulnerable plants a few times a week during periods of high activity.
Earwigs do most of their feeding after dark. Take a flashlight into the garden after sunset to see whether they’re actually chewing your plants or whether slugs, snails, or another pest may be responsible.
If you lift a flowerpot saucer after a rainy week and find a dozen earwigs underneath, that’s a useful clue. The area may be staying too damp, and it may be time to adjust watering, remove hiding places, or put out traps.
Jot down what you find and where you find it. A few simple notes can help you spot patterns and decide where traps or other controls will do the most good.
Try Traps and Habitat Changes First
You don’t necessarily need to treat the garden when earwigs appear. Simple traps and changes around the yard can often keep their numbers manageable.
Try:
- Setting rolled-up damp newspapers or cardboard tubes near flower beds overnight.
- Reducing excess moisture around vulnerable plants.
- Burying a low-sided can with about 1/2 inch of oil in the bottom, with the rim level with the soil, near affected plants just before dark.
- Pruning low branches when appropriate to improve sunlight and airflow in persistently damp areas.
Check traps in the morning and dispose of captured earwigs. Continue monitoring the garden to see whether plant damage decreases.
These methods can also show you where earwigs are most active before you decide whether any additional treatment is necessary.
Protect Seedlings and Young Plants
Young vegetable starts and flowering annuals are especially vulnerable to earwig feeding. Ragged leaves and damaged stems can set back small plants before their root systems are fully established.
Start with traps, cleanup, and moisture control. Give new plants a little extra attention during their first few weeks, especially if you’ve had earwig problems in the same beds before.
If damage continues, baits containing spinosad are among the options identified in UC’s guidance for controlling earwigs. Always check the product label to make sure it is appropriate for the area and plants you’re treating, and follow all application directions.
For a severe or persistent problem, a pest control professional can help identify where earwigs are concentrating and determine whether additional treatment is warranted.
Clean Up Earwig Hiding Places
A little yard maintenance can remove many of the cool, damp spots earwigs prefer.
Clear fallen leaves, decaying wood, and unnecessary debris from garden borders. Keep firewood raised off bare soil, and consider placing pots on risers so air can circulate underneath them.
Watering habits matter too. When possible, water plants early in the day instead of late in the evening. This gives the soil surface time to dry before earwigs become active at night.
You don’t need to make the entire garden dry. The goal is simply to avoid creating unnecessary damp hiding places close to the plants earwigs are damaging.
When to Call a Professional
For most gardens, regular checks, cleanup, moisture control, and a few traps may be enough to keep earwigs under control.
Consider calling a pest control professional if plant damage continues despite those steps, you regularly find large numbers of earwigs, or they begin showing up inside your home. Professional help can also be useful when you aren’t sure what’s eating your plants.
Keep Earwigs Under Control
You’ll probably always have a few earwigs in the garden, and that’s fine. Check your beds regularly, remove damp hiding places, put out traps when numbers climb, and use targeted treatments only when simpler measures aren’t doing enough.
The goal isn’t an earwig-free yard. It’s a healthy garden where a few hungry insects don’t get the chance to ruin your seedlings before they have time to grow.
