Earwigs have a reputation that’s worse than their actual threat. Those rear pincers look alarming, but earwigs aren’t venomous and they rarely pinch people. The real problem is when they show up inside your Johnston home in large numbers — crawling out from under the bathroom sink, turning up in the basement, hiding in stacks of newspapers. Outside, they damage garden plants. Miller Pest Solutions handles earwig invasions efficiently and targets the outdoor harborage areas that feed the problem.

Signs of an Earwig Infestation

  • Earwigs in damp indoor areas — finding them under sinks, in bathrooms, in laundry rooms, or in basements is the most common sign of an indoor problem.
  • Garden and plant damage — earwigs chew irregular holes in leaves, flowers, and soft plant tissue. They’re especially hard on seedlings, marigolds, and hostas.
  • Large numbers under mulch or debris — lifting a board, rock, or thick layer of mulch near your foundation and finding dozens of earwigs indicates a large outdoor population nearby.
  • Earwigs in damp firewood stacks — wood stored close to the house is a prime harborage site that puts them right next to entry points.
  • Activity after rain — earwig numbers indoors often spike following wet weather, as saturated outdoor harborage drives them toward drier shelter inside.

Why Earwigs Are Common in Johnston

Iowa’s wet springs and warm, humid summers are ideal for earwig populations. They need moisture and decaying organic matter to thrive — and Johnston’s landscaped properties, mulched garden beds, and mature shade trees deliver both.

The typical pathway into a Johnston home runs right through the landscaping. Thick mulch against the foundation retains moisture and provides shelter. Leaf litter in window wells, gaps under siding at the foundation level, and cracks in basement walls give earwigs a direct route indoors. During dry spells in midsummer, they’re even more likely to push inside looking for humidity. Wet springs produce particularly large invasions as outdoor populations surge.

Our Earwig Control Process

Miller Pest Solutions attacks earwig problems at the source — outdoors. Perimeter barrier treatments applied around the foundation, across mulched beds, and along the bottom of exterior walls knock down the outdoor population before they can get inside. We treat entry points at the foundation level, including gaps around utility lines, weep holes, window wells, and door thresholds.

We’ll also walk your property and point out harborage conditions that are feeding the problem — mulch piled against the siding, wood debris near the foundation, irrigation patterns that keep the perimeter constantly wet. Reducing those conditions makes every treatment more effective and longer-lasting.

For earwigs already inside, we treat crack-and-crevice areas in basements and bathrooms and can apply bait products in key locations. Follow-up treatments in heavy-pressure situations are sometimes needed.

Why Choose Miller Pest Solutions

Miller Pest Solutions has served central Iowa since 2001. QualityPro Certified, NPMA member. Joel Miller has been in pest control since 2007 and has treated earwig problems in homes throughout Polk County and the surrounding region. We offer free phone bids — call and tell us what you’re dealing with, and we’ll give you real pricing before scheduling anything.

Get a Free Phone Bid Today

Earwigs showing up inside your Johnston home? Call Miller Pest Solutions at (515) 329-8801 for a free phone bid. We’ll get a perimeter treatment scheduled and take care of the problem. Learn more at millerthekiller.com.