Earwig Invasion in Ontario: Why They're Surging in June 2026

Quick answer: Earwigs are showing up in Ontario homes in larger numbers this June 2026 because a mild 2025–26 winter and a wet spring left more of these moisture-loving insects alive and breeding across the GTA. Health Canada confirms earwigs typically wander indoors in June and July. They look alarming but aren’t dangerous — and Sani IQ can stop them at the source.

If you’ve lifted a flowerpot, opened a damp cardboard box, or pulled back the bed covers this week and found a fast-moving, pincer-tailed bug, you’ve met an earwig — and you’re far from alone in Ontario right now. Across Toronto, Mississauga, Vaughan, Barrie, and the wider GTA, homeowners are reporting a noticeable jump in earwig sightings this June 2026. Here’s what’s driving the surge, why these creepy-looking insects are mostly harmless, and the steps that actually keep them out of your home.

What’s happening / What to do

What’s happening	What to do
Earwig numbers are up across the GTA after a mild winter and wet spring	Cut moisture indoors and out — fix leaks, run a dehumidifier in basements
Earwigs are migrating indoors now (Health Canada: June–July)	Seal gaps around doors, windows, and the foundation
They gather in damp mulch, leaf litter, and debris near foundations	Clear a dry, debris-free perimeter at least 30 cm (1 ft) from the foundation
DIY traps help but rarely clear a heavy infestation	Call Sani IQ to treat the outdoor source and seal entry points

[Embed: relevant Sani IQ / pest video]

Why are there so many earwigs in Ontario this year?

Earwigs are surging in Ontario in 2026 because the mild 2025–26 winter let more overwintering adults and eggs survive, and an unusually wet spring created the damp conditions earwigs need to thrive. GTA pest control operators are reporting a more active early-summer season than recent years. With warm, humid weather settling in, populations that built up outdoors are now pushing into homes.

Earwigs spend the day hiding in cool, dark, moist spots — under stones, in mulch, in garden debris — and forage at night. After a rainy stretch, those outdoor hiding places get crowded, and the insects start exploring foundations, fences, and walls. That’s when they slip indoors through small cracks.

When do earwigs come into Ontario homes?

According to Health Canada, earwigs may begin to wander into homes in June or July as they search for food and shelter, which is exactly why sightings spike in early summer. They’re accidental invaders rather than indoor breeders, but it’s still unsettling to find them among food, clothing, or even between bed covers. Numbers in Ontario typically peak through July and August.

This timing is the key takeaway for homeowners: the bugs you’re seeing now are part of a predictable seasonal push, and acting in June — while populations are still building — is far easier than fighting a peak-summer infestation.

Are earwigs dangerous to people or pets?

No — earwigs are not dangerous to humans or pets. Health Canada states plainly that, “despite their scary appearance and reputation, earwigs are not directly harmful to humans.” They don’t spread disease, and while their pincers look menacing, they can’t meaningfully harm a person. In gardens they’re often beneficial, eating aphids, slug eggs, and other pests.

The main problems earwigs cause are the “ick factor” of finding them indoors and occasional damage to garden plants, flowers, and soft fruit. They can nibble tender shoots and blossoms, but they’re not a structural or health threat the way some pests are.

How do I get rid of earwigs in my house?

The most effective fix is to treat the outdoor source, not just the bugs you see indoors. Health Canada notes that, “a more effective and long-term solution is to find and treat the outdoor source of the infestation.” That means drying out and clearing the perimeter around your home, sealing entry points, and trapping or treating where earwigs gather — combined with indoor spot treatment for the ones already inside.

DIY traps can knock down numbers, but a heavy or recurring infestation usually needs a professional to locate harbourage sites, seal gaps, and apply registered products safely. Our pest library has more on common Ontario insects.

Steps to keep earwigs out of your Ontario home

These Health Canada–aligned steps target the moisture and shelter earwigs depend on:

Dry out the perimeter. Trim back vegetation and create a clean, low-moisture band around your foundation by removing mulch, leaf litter, and debris.
Fix the water. Repair leaky taps and downspouts and direct drainage away from your foundation; run a dehumidifier in damp basements.
Seal entry points. Caulk gaps around door and window frames, the foundation, and where utilities enter the home.
Set simple traps. Roll up corrugated cardboard secured with an elastic, or sink a shallow tin of oil into the soil; check daily and drop captured earwigs into soapy water.
Tidy the yard. Don’t let grass clippings, fallen leaves, and old wood pile up near the house.
Treat at the right time. Health Canada notes the best time to apply control products is warm, dry weather in June or early July, in the evening when earwigs are active.
Call a pro for persistent problems. A licensed technician can treat the source, seal entry points, and apply products safely around children and pets.

What this means for GTA homeowners in 2026

For Ontario homeowners, the June 2026 earwig surge is a reminder that this summer’s pest pressure is running high after the mild winter. The good news: earwigs are one of the more manageable pests once you remove their moisture and shelter. Tackling it now — before the July–August peak — keeps a few startling sightings from turning into a steady indoor stream. Sani IQ serves communities across the GTA; see local service details for Barrie and beyond.

Why choose Sani IQ for earwig control

Sani IQ is a licensed, science-based Ontario pest control company with deep local expertise and more than 100 five-star reviews. Rather than just spraying the bugs you can see, our integrated pest management (IPM) approach finds and treats the outdoor source, seals entry points, and uses products registered with a Pest Control Products (PCP) number by the Government of Canada — applied safely around your family and pets. Explore our residential pest control services or view plans and pricing.

Don’t let earwigs settle in

Earwigs may look frightening, but they’re harmless, seasonal, and very beatable — especially when you act during the June–July arrival window. Dry out the perimeter, seal the gaps, and treat the source, and you’ll keep this summer’s surge outdoors where it belongs.

Seeing earwigs around your home? Call Sani IQ at (416) 879-1294 or request a quote at /contact/. For more seasonal Ontario pest alerts, visit our blog.

Frequently asked questions about earwigs in Ontario

Why are there so many earwigs in Ontario in 2026? A mild 2025–26 winter and a wet spring let more earwigs survive and breed, and GTA pest operators report a more active early-summer season. Warm, humid weather is now pushing outdoor populations indoors, which is why sightings are up across Toronto, Mississauga, Vaughan, and Barrie.

Are earwigs dangerous? No. Health Canada confirms earwigs are not directly harmful to humans. They don’t spread disease, and their pincers can’t meaningfully hurt people. They’re mostly a nuisance indoors and can occasionally damage garden plants, flowers, and soft fruit, but they pose no structural or health threat.

Do earwigs go in your ears? Despite the name and old folklore, earwigs do not crawl into people’s ears to lay eggs. It’s a myth. Earwigs seek cool, dark, moist hiding spots like mulch, debris, and household cracks — not human ears. The occasional rare encounter is purely accidental.

When are earwigs most active in Ontario? Earwigs wander into Ontario homes in June and July, according to Health Canada, with numbers typically peaking through July and August. They’re most active at night, hiding in damp spots during the day and foraging after dusk, especially following rainy stretches.

How do I keep earwigs out of my house? Remove the moisture and shelter they need: clear mulch and debris from the foundation, fix leaks and downspouts, run a dehumidifier, and seal cracks around doors, windows, and the foundation. Health Canada advises treating the outdoor source for a lasting fix; call a pro for heavy infestations.

Should I call an exterminator for earwigs? For a few stray earwigs, perimeter cleanup and traps often suffice. But if you’re seeing them indoors regularly, a licensed operator can find the outdoor source, seal entry points, and apply registered products safely — the most effective long-term solution Health Canada recommends.