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What Are the Main Pests Seen in East Denver?

Posted by Mosquito Squad Plus

August 12, 2026

What Are the Main Pests Seen in East Denver?

East Denver is special. With established neighborhoods, easy access to the city, and enough green space to actually enjoy being outside, it provides a home perfect for raising a family. 

Your Colorado summers are marked with irreplaceable memories and warm days to make the most of. 

But, guess who else makes the most of every warm day?

Pests.

And in East Denver, it's never just one. The combination of heat, irrigated lawns, mature landscaping, and the South Platte corridor nearby creates conditions where multiple pests are active at the same time.

Mosquitoes, ticks, ants, and spiders show up together, and they never decide to leave on their own. (Oh, and lecturing them won’t help either). 

So, which pests are most active around East Denver properties? And what's the best way to deal with more than one at once?

Why So Many Pests in East Denver? 

Many people have this misconception of Colorado’s pest season: 

More elevation = less pests. 

But, nothing could be farther from the truth. Because of Colorado's shortened and compressed outdoor season, it means pest activity builds hard and fast. 

Once temperatures rise after snowmelt, mosquitoes start breeding in standing water from irrigation and runoff. Ticks become active in grassy and brushy areas throughout the season. Ants push inside looking for food and moisture. And spiders wait in undisturbed areas around the home like garages and sheds. 

East Denver’s conditions create a pest playground. Between irrigated residential landscaping and proximity to natural green corridors, it feels like pests always have the high ground. 

This situation supports multiple pest species at the same time, which is why homeowners here often find themselves dealing with more than one problem at once.

The Pests Most Active Around East Denver Homes

Here's are the main pests to look out for this season: 

  • Mosquitoes - they hit hard from June through September, fueled by snowmelt pools, irrigation runoff, and any standing water on your property. Even a small amount of water is enough for breeding activity to begin. (Also, West Nile Virus is alive and well in the Denver area). 
  • Ticks - deer ticks and wood ticks are both present in East Denver. And with tick encounters close to home becoming more common, Lyme disease and other tick-borne illnesses become more likely.
  • Ants - being both consistent and tenacious, they continually push themselves indoors looking for moisture. And once a foraging trail is established, the colony keeps sending workers.
  • Spiders - they find undisturbed areas around garages, sheds, and outdoor storage to take up residence. In Colorado, they're active year-round and tend to increase as prey insects come around in the summer.

Bundling Pest Control Makes Sense in East Denver

Treating one pest at a time is like trying to put out a forest fire with one bucket. It helps (kind of) but the rest of the problem is still there, blazing hot. That's why bundling mosquito and tick control with broader pest management makes sense for East Denver homeowners. 

Seasonal Multi-Pest packages address the full range of pests active on your property. Our treatments are EPA-registered and applied by trained technicians to the exterior foundation, eaves, and outdoor areas where pests rest and hide. 

And picture this: 

You finally enjoy your outdoor spaces again. And you spend way less time worrying about which pest will show up next. 

Not sure where to start? You can explore all of our local services or browse our local blog for more tips on managing pest activity in the East Denver area throughout the season.

Juggling more than one pest around your East Denver home? Call Mosquito Squad Plus of East Denver at (720) 500-8064 or contact us online for a free quote.

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