Ants, spiders, and rodents are the most common pest problems homeowners face in Reno, largely driven by the extreme temperature swings of the high desert and the search for moisture. Critter Bro in Reno, NV, provides expert local interventions that address these invaders through professional-grade exclusion and long-term prevention strategies.
The Reno Seasonal Pest Calendar
In the Truckee Meadows, pest activity isn’t random; it follows a predictable cycle dictated by our local climate. Understanding this timeline helps you stay ahead of infestations.
- Spring (March – May): As the ground thaws, pavement ants and odorous house ants emerge in massive numbers looking for sugar and water. This is also when stinging insects like yellowjackets begin building queens’ nests.
- Summer (June – August): Heat drives scorpions, Black Widows, and cockroaches indoors to seek cooler, damp environments. In certain years, Reno also experiences migrations of Mormon crickets, which can swarm properties in the thousands.
- Fall (September – November): This is the “Great Indoor Migration.” Spiders and rodents like deer mice begin seeking warmth for the winter, often entering through tiny gaps in your home’s foundation.
- Winter (December – February): Most outdoor activity stops, but pests that have already achieved harborage inside your walls—like rats or cockroaches—will remain active and continue to breed.
Top 5 Pest Threats for Northern Nevada Homeowners
To protect your property, you need to recognize the specific behaviors of our local “regulars.”
1. Rodents (Mice and Rats)
Reno’s proximity to the Sierra Nevada foothills means we have a high population of deer mice. These aren’t just a nuisance; they are primary carriers of hantavirus pulmonary syndrome, which is a significant health concern in Washoe County.
2. The “Occasional Invaders”
Reno homes often deal with pests that don’t want to live inside forever but find their way in by accident. Boxelder bugs and Elm leaf beetles often cover the sunny sides of homes in the fall, eventually crawling into attic spaces to overwinter.
3. Venomous Spiders
While most spiders are beneficial, the Black Widow is common in Reno garages and woodpiles. They prefer dark, undisturbed areas. Because their bites can be medically significant, managing their population near entry points is a safety priority.
4. Nuisance Ants
Ants in the high desert are relentlessly driven by water. Even the cleanest kitchen can be invaded overnight if there is a tiny leak under the sink or a pet water bowl left out.
5. Mormon Crickets and Grasshoppers
In rural Reno and the North Valleys, these migratory pests can become a plague-level issue. They are highly destructive to landscaping and can create a significant mess on siding and walkways.
Nuisance Wildlife vs. General Pests
It is important to distinguish between “general pests” (insects) and nuisance wildlife (mammals and birds). While a standard bug spray might handle ants, it won’t stop a raccoon or a colony of bats.
| Feature | General Pests (Ants/Spiders) | Nuisance Wildlife (Raccoons/Bats) |
| Typical Entry | Cracks/crevices/weep holes | Roof vents/soffits/chimneys |
| Primary Risk | Food contamination/bites | Structural damage/Zoonotic disease |
| Removal Method | Baiting and barriers | Trapping and exclusion |
| Legal Status | Generally unprotected | Often protected by NV state law |
Why This Matters for the Reno High Desert
Reno’s unique geography—situated at 4,500 feet—means pests face extreme survival challenges. The Integrated Pest Management (IPM) approach is the gold standard here. Because we have dry air, moisture control is the #1 way to keep bugs out. If you have a leaky irrigation line or a clogged gutter, you are essentially inviting the neighborhood’s pests to your front door.
Why Choose Critter Bro?
We don’t just treat the symptoms; we fix the structure. Our team specializes in pest control and wildlife exclusion, meaning we identify the physical entry points—some as small as a dime—and seal them with industrial-grade materials that withstand Nevada’s freeze-thaw cycles. Whether you need rodent removal or help with an animal in the attic, we offer the local expertise needed to protect your home.
Frequently Asked Questions
Why are there so many spiders in Reno this year?
Spider populations in Reno fluctuate based on the availability of their prey (other insects). A wet spring often leads to more bugs, which in turn leads to a “boom” in the spider population during the summer and fall.
Is it worth it to get professional pest control in Reno?
Yes, especially for preventing structural damage and health risks. Professionals have access to industrial-strength exclusion materials and know the specific nesting habits of Northern Nevada wildlife, which DIY methods often miss.
Are Mormon crickets dangerous to humans?
Mormon crickets do not bite or sting humans, but they can be incredibly destructive to gardens and crops. Their presence in large numbers can also create slip hazards on walkways and attract larger predators like coyotes or birds to your property.
How do I know if I have mice or rats in my attic?
Mice are one of the common animals in Reno attics, and they leave small, rice-sized droppings and make light scratching sounds. Rats produce larger, capsule-shaped droppings and often make louder thumping or gnawing noises. Both require immediate rodent control to prevent them from chewing on electrical wires.
Can I spray for pests myself?
While over-the-counter sprays can kill individual bugs, they rarely address the source of the infestation or the pheromone trails that lead other pests into your home. Professional treatment creates a comprehensive barrier that DIY products can’t match.
Don’t let local pests take over your home. Contact Critter Bro today at (775) 899-7000 to schedule professional pest control services and secure your property.
