Mosquitoes

Culex tarsalis · Health risk

They breed in a bottle cap of water, and Colorado has plenty.

How to identify

Slender, 1/4 inch, banded legs
Rests with body parallel to the surface
Most active at dusk and dawn

Signs of activity

Bites at dusk on patios
Larvae wriggling in standing water
Clouds near gutters and water features

When they’re active

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Mosquito & Tick Control

What Do Mosquitoes Look Like?

Here in Colorado, there are two groups of mosquitoes to be aware of and they are the genus Aedes and the genus Culex. While all mosquitoes look similar to our eye anyway, it’s worth noting the behavior of these two species in Colorado. You see, the genus Aedes are often referred to as floodwater mosquitoes because they are found near standing water including ponds, marshes, and depressions caused by rain or snow melt. They are the mosquitoes that are likely to bite during the day.

Culex mosquitoes, on the other hand, typically only come out in during dawn and dusk hours; they avoid the hot sun and temperatures.

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Hey Colorado Springs, Summer’s Here & So Are The Mosquitoes!

Frequently Asked Questions

Colorado Mosquitoes FAQs

Are Mosquitoes Dangerous?

Yes, mosquitoes can be dangerous to humans, particularly the genus Culex. This species is the main vector for West Nile virus, Western equine encephalitis, and St. Louis encephalitis. While the Zika virus is not present in Colorado, residents should be aware of the risks for contracting the illness in other states or countries where they plan to travel. For more information about the Zika virus in Colorado, click here and visit the Zika virus page of the Colorado Department of Public Health & Environment website.

Why Do I Have a Mosquito Problem?

There is a lot of information out there on what attracts mosquitoes. On list is wearing dark clothing, having high cholesterol and even being pregnant. Unfortunately it’s not always possible to avoid run ins with these biting insects. When it comes to mosquito bites, you only have to worry about female mosquitoes. Both males and females feed on the sugars of plants, nectar, and honeydew. Females also need a blood meal to reproduce. Males don’t even have the ability to bite.

If you’re property seems to have a lot of mosquito activity, take a look around. Do you see areas of standing water? Tall grass? To breed, female mosquitoes also need standing water. And not a lot of it. Water collected in a trash can cover provides suitable conditions for her reproduction efforts. Consider how many spots around your home or business would make perfect breeding sites. Bird baths, wading pools, old tires, the wheelbarrow, the list goes on and on.

Next, look for potential places that mosquitoes might seek relief from the hot sun. Tall grasses and overgrown vegetation are ideal hiding spots for these pests.

How Do you Get Rid of Mosquitoes?

Total mosquito control is impossible. The good news is that EnviroPest offers seasonal mosquito control that is designed to significantly reduce the mosquito population. Our pest control experts reduce the number of mosquitoes hanging out on your property by treating potential breeding sites. We also offer one-time mosquito treatments for weddings and other outdoor events.

Is the Mosquito Treatment Safe?

The treatment for mosquitoes does not present a health risk for your family or your pets.

How Soon Can You Get Here?

At EnviroPest, we take all pest issues seriously and are committed to helping as soon as possible. In most cases, we can respond the same or very next day.

How Much Does Mosquito Control Cost?

Treatment cost is determined by several factors; request a mosquito quote here!

How Can I Prevent Mosquitoes?

Mosquito prevention can be difficult especially since these pests can travel up to 14 miles per day looking for food. Below we’ve shared a few tips that may help you discourage mosquito activity.

Keep your lawn trimmed short and cut back on the amount of overgrowth on your property.
Eliminate standing water including clogged gutters and stagnant ditches.
Remove items that collect water on your property. This includes old tires, buckets, flower pots, tarps, etc.
Cover swimming pools, refresh bird baths and turn children’s wading pools over when not in use.

What’s moving right now

+55%
voles · up over the past 3 weeks

FRONT RANGE · Fall 2026

Vole populations peak in fall, just before snow gives them cover. Treat now and protect your trees, before they chew bark all winter unseen.

Weather driver: Fall breeding peak before snowfall

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Deer Mouse+85%
Pocket Gopher+25%
Cottontail Rabbit-10%

+110%
Rats · up over the past 3 weeks

FRONT RANGE · Fall 2026

Rats are moving indoors as temperatures drop, and a gap the size of a quarter is enough. Seal and treat now, before they nest in your walls and crawl spaces.

Weather driver: Cooling nights pushing rats indoors

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See the treatment plan →

House Mouse+140%
Packrat+60%
Pocket Gopher+25%

+50%
Raccoons · up over the past 3 weeks

FRONT RANGE · Fall 2026

Raccoons are fattening up and searching for warm places to spend the winter. Seal your roof and attic now, before one moves in.

Weather driver: Cooling nights and the search for winter dens

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Fox Squirrel+65%
Striped Skunk+30%
Red Fox-10%

+40%
Pigeons · up over the past 3 weeks

FRONT RANGE · Fall 2026

Pigeon flocks are claiming warm rooftops and ledges for the winter. Bird-proof now, before they settle in and droppings build up.

Weather driver: Cooling nights pushing flocks toward warm roosts

Get this treated
See the treatment plan →

European Starling+90%
Northern Flicker+35%
House Sparrow-10%

+35%
Mosquitoes · up over the past 3 weeks

FRONT RANGE · Fall 2026

Mosquitoes are looking for shelter in garages and basements, and West Nile risk lasts until the first hard freeze. Treat now to finish the season protected.

Weather driver: Cooling nights driving mosquitoes into shelter

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See the treatment plan →

Culiseta inornata+30%
Culex tarsalis-45%
Inland Floodwater Mosquito-70%

+30%
Honey Bees · up over the past 3 weeks

FRONT RANGE · Fall 2026

Bees in your walls are settling in for winter. Fall is the last window for a safe live removal before cold weather sets in.

Weather driver: Cooling days and fading bloom

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Western Yellowjacket+40%
European Paper Wasp-35%
Bumble Bee-60%

+45%
Earwigs · up over the past 3 weeks

FRONT RANGE · Fall 2026

Earwigs are slipping indoors as nights cool. Seal gaps and treat the foundation before they hide in basements and under doors.

Weather driver: Cool nights and fall rains

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Millipede+60%
House Centipede+20%
Pillbug-25%

+55%
Cockroach · up over the past 3 weeks

FRONT RANGE · Fall 2026

Cooling nights are driving cockroaches into basements and crawl spaces. Seal and treat now, before they settle in for winter.

Weather driver: Cooling nights driving roaches indoors

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See the treatment plan →

German Cockroach+25%
Brown-banded Cockroach+15%
American Cockroach-30%

+150%
boxelder-bugs · up over the past 3 weeks

FRONT RANGE · Fall 2026

Boxelder bugs are swarming sunny walls and slipping inside. Seal and treat now, before they settle into your walls for winter.

Weather driver: Cool nights and warm afternoons

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See the treatment plan →

Asian Lady Beetle+80%
Western Conifer Seed Bug+65%
Elm Seed Bug-40%

+85%
Bed Bug · up over the past 3 weeks

FRONT RANGE · Fall 2026

Back-to-school moves and late-summer trips are spreading bed bugs. Get an inspection before they settle in for the winter.

Weather driver: College move-ins and late-summer travel

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See the treatment plan →

Bat Bug+50%
Swallow Bug+40%
Flea-30%

+60%
Bats · up over the past 3 weeks

FRONT RANGE · Fall 2026

Bats are looking for warm places to spend the winter. Seal your home now, during the best window of the year for safe exclusion.

Weather driver: Cooling nights and fewer insects

Get this treated
See the treatment plan →

Little Brown Bat-20%
Hoary Bat-60%
Mexican Free-tailed Bat-75%

+85%
Odorous House Ant · up over the past 3 weeks

FRONT RANGE · Fall 2026

Ants are heading indoors as nights dip below freezing. Treat now before colonies settle into walls and slabs for the winter.

Weather driver: Cold nights, warm foundations

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See the treatment plan →

Pavement Ant+41%
Carpenter Ant-18%
Field Ant-27%

+90%
Spiders · up over the past 3 weeks

Northern Colorado · Fall 2026

Male spiders are wandering indoors looking for mates, which is why you’re seeing more of them now. Treat the perimeter before they settle in for winter.

Weather driver: Cooling nights and mating season

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Orb Weaver+70%
Wolf Spider+30%
Western Black Widow-30%

+40%
Western Yellowjacket · up over the past 3 weeks

FRONT RANGE · Fall 2026

Yellowjackets get aggressive as their food runs low, swarming trash, patios, and picnics. Treat nests now to finish the season sting-free.

Weather driver: Shrinking food supply making colonies aggressive

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Bald-faced Hornet+20%
European Paper Wasp-35%
Mud Dauber-55%

+140%
House Mouse · up over the past 3 weeks

FRONT RANGE · Fall 2026

Mice are moving indoors as temperatures drop, and a gap the size of a dime is enough. Seal and treat now, before they nest in your walls for winter.

Weather driver: First freezes pushing mice indoors

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See the treatment plan →

Deer Mouse+85%
Norway Rat+30%
Meadow Vole-15%

+120%
Subterranean Termite · up over the past 3 weeks

FRONT RANGE · Fall 2026

Mud-tube and damage reports are climbing. Schedule an inspection before winter slows activity and hides the damage.

Weather driver: Warm, wet soil after late storms

Get this treated
See the treatment plan →

Powderpost Beetle+10%
Carpenter Ant-18%
Carpenter Bee-50%

Eric G.

Great experience with the pest control service. Alexander did a thorough job spraying both the inside and outside of the home and took the time to explain what they were doing. I especially appreciated that he didn’t just treat the home but also pointed out areas around the house that could allow pests to get inside and recommended repairs and preventative measures to help keep them out. The service was professional, thorough, and informative, and I appreciated the attention to detail. I would definitely recommend them to anyone looking for reliable pest control and helpful advice from Alexander on preventing future pest problems.

a month ago

Aaron S.

Our garage had been infested with mice. They left quite a mess. EnviroPest has systematically worked to eradicated the mice, mitigate entry points, and most recently completed a thorough cleanup and sanitation process. Along the way, they have all been professional, friendly, and have gone out of their way to explain their findings and recommendations. I never felt like we were being upsold. Overall very satisfied and would call them again if needed.

3 months ago

A V.

Mark has come to service my property a few times and does a great job answering questions and focus on my areas of concern. I like having the rapport with someone familiar with my previous service and property needs.

6 months ago