Field notes

Pest control tips,
explained.

We write these to answer the questions we hear on calls: what's actually crawling around homes in Lake Stevens and the rest of Snohomish County, and what to do about it.

A dark attic lit by a single work light, with rafters overhead, a block wall, and an open section of floor joists, the kind of space where mice and rats nest at night
Rodents October 10, 2026

Mice or Rats in the Attic? What the Noises Mean and What to Do Next

Hearing mice in the attic at night? Here is how to tell mice from rats by sound and droppings, what not to do, and how an inspection finds the way in.

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Pest control inspection image
Pest Control September 30, 2026

How to Prepare Your Home and Pets for a Pest Control Visit

What to ask before a pest control appointment, what information to share about pets, and how to plan access, preparation, and aftercare.

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Ant pictured for a household ant inspection guide
Ants September 23, 2026

Ants After Rain: A Moisture Checklist for Your Home

Seeing ants after rain near a sink, window or door? Use this moisture and entry-point checklist before assuming the rain explains the whole problem.

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Stinging insect pictured for a yellowjacket identification guide
Wasps & Bees September 16, 2026

Yellowjackets Around the Trash? Check the Food Source First

How to assess yellowjackets around outdoor bins and patios in Snohomish County, reduce food attractants, and recognize a possible nearby nest.

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Rodent pictured for a home mouse and rat prevention guide
Rodents September 9, 2026

How to Keep Mice Out of the Garage Before Fall

How to keep mice out of the garage before fall: door gaps, stored food and clutter to check, and the signs that call for a rodent inspection instead.

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An open crawl space access vent at the base of a house with the cover removed, showing the dark opening underneath where rats get in
Crawl Space August 22, 2026

Signs of Rats in Your Crawl Space (and What Each One Means)

An ammonia smell at a floor register is one of the first signs of rats in crawl space insulation. What to check, and when the vapor barrier has to come out.

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Pure Guard technician servicing a tamper-resistant rodent bait station outside a Snohomish County, WA home
Pest Control July 30, 2026

How Much Does Pest Control Cost in Snohomish County?

How much does pest control cost? What actually moves the price, why an honest quote needs a few questions first, and the ranges we see across Snohomish County.

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Pure Guard technician treating eaves and a light fixture where wasps and yellow jackets nest in Edmonds, WA
Wasps & Bees July 14, 2026

How to Remove a Wasp Nest (and the Ones You Should Leave Alone)

How to remove a wasp nest safely: timing, which nests are reasonable to handle yourself, why winter nests are not worth touching, and when spray makes it worse.

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Pure Guard technician spraying a perimeter barrier along a home's foundation for ant control in Lake Stevens, WA
Ants June 25, 2026

How to Get Rid of Ants (and Why the Spray Under Your Sink Makes It Worse)

How to get rid of ants: most PNW ant problems come down to four species, and the fix is different for each. What works, what backfires, and when to call.

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Close-up of a mosquito perched on a leaf
Mosquitoes June 14, 2026

Why You Have Mosquitoes in Washington State (and How to Cut Them Down)

Mosquitoes in Washington state are supposed to be rare, so why is your yard unusable in July? What is breeding them and how to take the yard back.

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A house spider in its web in the corner of a wooden structure
Spiders June 13, 2026

Spiders in Washington Homes: Which Ones Actually Matter

Spiders in Washington homes: hobo spider, giant house spider or something harmless? What is really crawling around, whether it is dangerous, and how to keep them out.

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Close-up macro photo of a black carpenter ant on weathered wood
Ants June 10, 2026

Carpenter Ants vs. Sugar Ants: How to Tell What's in Your Kitchen

Carpenter ants vs sugar ants: they look similar but mean very different things. How to tell them apart, what each one is after, and when to call.

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Paper wasps on an open umbrella-shaped paper nest against a wall
Wasps & Bees June 3, 2026

Yellow Jacket vs Honey Bee vs Paper Wasp: Know Before You Spray

Yellow jacket vs honey bee vs paper wasp: how to tell them apart before you spray, and why the honey bees are the ones to leave alone.

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Macro close-up of a fly resting on a weathered surface
Flies May 28, 2026

Cluster Flies, Fruit Flies, Drain Flies: Why They Keep Coming Back

Cluster flies, fruit flies and drain flies are three different problems with three different fixes. How to tell which one you have and why swatting never solves it.

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Close-up of a wild brown rat (Norway rat) foraging on the ground
Rodents May 20, 2026

Why Rats Get Into Snohomish County Homes Every Fall

When the weather turns, rats start looking for somewhere warm and dry. Here's how they get into Lake Stevens homes, and how to close the door before they do.

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Empty commercial kitchen with stainless steel surfaces and subway tile
Commercial May 12, 2026

What Health Inspectors Look For: Pest Control for Restaurants

Pest control for restaurants is a health-code issue, not just an embarrassment. What inspectors check, and what a real restaurant pest control program covers.

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Got something you can't identify?

Send us a photo and we'll tell you what it is and whether it's worth treating. If it is, we'll have someone out within 48 hours.