Scorpions in a Las Vegas Rental: The Turnover Sweep That Works
Bark scorpions run April through October and pass through a credit-card gap. The four-minute sweep we do on every turnover, and where they get in.
Check the tubs and shower pans first, then shoes, then folded towels. Porcelain is slick enough that a bark scorpion which wanders into a tub overnight cannot climb back out, so that is where guests find them — usually around six in the morning, usually with a phone already in hand.
Bark scorpions are the one species in this valley worth being careful about. The Southern Nevada Health District calls it the most venomous scorpion in North America. It is nocturnal, it climbs walls and ceilings, and it is flat enough to slip through a gap the thickness of a credit card.
Why some addresses have them and others don't
The pattern is desert edge. Newer construction on the outer rings — Skye Canyon, Centennial Hills, Mountain's Edge, the far villages of Summerlin, Inspirada down in Henderson — sits on ground that was habitat until fairly recently, and block walls, decorative rock and drip irrigation boxes recreate exactly the crevices they were already living in. Houses backing a wash or an undeveloped parcel get hit hardest.
Older central neighborhoods trade one problem for another. Paradise Palms, the Scotch 80s, the mature streets off Maryland Parkway have grown fruit trees and decades-old sewer laterals, so those calls are rodents and drain roaches instead. Different sweep, same principle: you check for what the neighborhood produces rather than running a generic list.
The four-minute sweep
- Tubs, shower pans and sinks. Look before you rinse. Anything that came in overnight is stuck down there.
- Shoes and slippers by the door, the closet floor, and whatever sneaker the last guest forgot.
- Folded linens. A stack of towels in a dark cabinet is the precise texture and darkness they want. Shake them out; don't just carry them.
- Under the bed, inside the bed skirt. Lift, look, then vacuum.
- Behind the toilet and under the vanity toe-kick, where supply lines pass through the wall.
- Both bottom corners of the garage door seal. Corners wear first, and a quarter-inch gap there is an open door.
On evening turns, kill the lights and run a 365-nanometer UV flashlight along baseboards and the patio wall line. They fluoresce a bright green that is impossible to miss. In daylight the flashlight is useless, so do the visual sweep instead and don't pretend otherwise.
When you find one
Cup, piece of card, out the door. Don't crush it on bedding you just laundered, and don't stop at one — something that showed up at a baseboard got in through a specific hole, so walk that wall line and the adjoining room before moving on. Photograph where it was sitting. That detail goes in the report and tells the pest company where to treat, which matters more than the bare fact that you found one.
Write the sting protocol into the house manual in plain language: wash the site, cool compress, call Poison Control at 1-800-222-1222, and go to an emergency department if the person is a small child, elderly, or has trouble breathing or swallowing. Most stings hurt severely and then resolve. UMC is the region's Level I trauma center. Guests handle this calmly when the information is on the fridge and badly when it is not.
Sealing works. Spraying by itself does not.
A perimeter treatment kills what crosses it and does nothing about the opening it crossed to get there. The openings are predictable: the weep screed line where stucco stops an inch or two above grade, garage door seals, exterior doors with daylight under them, window weep holes, and the expansion joint where the patio slab meets the house. If a credit card slides under a door, so does everything discussed here.
Then there is the food supply. Crickets are the draw, and a porch light burning all night is a cricket magnet. Warm-color LEDs on a motion sensor cut the insect traffic sharply. Keep decorative rock, potted plants and any woodpile a foot back off the wall line. The porch light is not a courtesy to guests; it is a dinner bell. You can phrase that more gently than we just did.
The other three things we turn up
Black widows. Undersides of patio furniture, the pool equipment pad, water meter and irrigation valve boxes, the space behind a stored float. They are the likeliest thing to bite a cleaner's hand, and a shop vac plus a stick once a month keeps them down.
Roof rats. Now documented in every ZIP code across the valley. They travel block walls and palm skirts the way you would use a sidewalk, and citrus, figs and pomegranates in the yard feed them year-round. A guest hearing scratching in the attic at 2 a.m. ends in a refund nearly every time. Trim palm skirts and tree limbs six feet clear of the roofline and pick fallen fruit up off the ground.
Drain roaches. This one belongs to rentals that sit empty between bookings. In air this dry, the P-trap under a guest bathroom nobody used can lose its seal in two or three weeks, and that trap is the only barrier between the room and the sewer line. Odor comes first, an American cockroach second. Every turnover, run every faucet and flush every toilet, including the bathroom nobody touched, and pour a cup of water into the laundry and garage floor drains. Ninety seconds, and it prevents the worst-smelling arrival in the business.
What it costs, and the part we can't do
General quarterly service on a valley house runs in the low hundreds per visit. A scorpion-focused program with UV inspections costs more and earns it on a house that has already produced one. Sealing is the durable spend: a few hundred dollars of caulk, door sweeps and screen once, and it outperforms years of spraying.
What we will not do is treat. Applying pesticides for hire in Nevada requires licensing through the state Department of Agriculture, and a housekeeping crew does not hold it. We find them, remove them, document them in the turnover inspection report, and tell you where to seal. A cleaner who offers to take care of the bugs as part of the cleaning fee is either not doing it or should not be.
One more thing, free of charge: keep the UV flashlight out of the welcome basket. Somebody decided that was a charming desert touch. A guest who blacklights the patio at midnight will find something, and you will be refunding the stay by one in the morning.