Creates a barrier to stop pests from entering.
Maintains ongoing protection against infestations.
Targets and removes existing pests effectively.

“I built Colco to be more than service—we protect family across south Texas”
Founder & Certified Pest Control Specialist

Let’s be honest—mosquitoes in South Texas are relentless. One afternoon thunderstorm drops 2 inches of rain, and three days later your backyard is swarming. They’re not just annoying; they’re a legitimate health concern with Zika, West Nile virus, and dengue all documented in the McAllen.
Colco Pest and Weed Control provides targeted mosquito control for McAllen residential and commercial properties. We reduce mosquito populations using barrier treatments and breeding site elimination. Will we eliminate every single mosquito? No. But we can make your yard comfortable enough to actually use it.
Ready to reclaim your backyard? Call 956-777-6328 to schedule treatment.
Why McAllen Has Serious Mosquito Problems
Year-Round Breeding: Mosquitoes need two things—standing water and warmth. McAllen provides both 10-11 months of the year. Even December and January often stay warm enough for mosquito activity.
Summer Thunderstorms: May through September, we get frequent afternoon storms. Poor drainage, puddles in low spots, clogged gutters—all of it becomes mosquito breeding habitat within 48 hours.
Resacas and Water Features: McAllen has numerous resacas (oxbow lakes) and retention ponds. These natural and man-made water bodies produce massive mosquito populations that spread into surrounding neighborhoods.
Vegetation and Humidity: Dense landscaping, shrubs, and trees provide resting spots for adult mosquitoes during the day. High humidity keeps them active and comfortable.
Proximity to Agricultural Areas: Irrigated farmland and citrus groves create additional mosquito habitat. Populations from agricultural areas drift into residential neighborhoods.
Standing Water Everywhere: Bird baths, plant saucers, kids’ toys, clogged gutters, tire swings, tarps, wheelbarrows—anything that holds water for 5-7 days can produce mosquitoes.
Container Breeding Species: Aedes aegypti (the mosquito that carries Zika and dengue) breeds in small containers around homes. These mosquitoes are aggressive daytime biters that live right where people are.
Mosquito Species in McAllen
Aedes aegypti (Yellow Fever Mosquito): Small, black with white markings. Aggressive daytime biter. Breeds in containers around homes. Vectors for Zika, dengue, and chikungunya. Bites ankles and legs preferentially.
Aedes albopictus (Asian Tiger Mosquito): Similar to aegypti but with white stripe down the back. Also a daytime biter and container breeder. Vectors for Zika and dengue.
Culex species (Southern House Mosquito): Most common mosquito in McAllen. Active at dusk and dawn. Breeds in standing water—ditches, retention ponds, neglected pools. Primary vector for West Nile virus.
Psorophora species (Floodwater Mosquitoes): Large, aggressive mosquitoes that emerge after heavy rains. Their bite is painful. They’re strong fliers and can travel miles from breeding sites.
Our Mosquito Control Approach
Step 1: Property Inspection We walk your property looking for mosquito breeding sites and adult mosquito resting areas. We identify standing water sources, dense vegetation, and conditions attracting mosquitoes.
Step 2: Source Reduction Recommendations We tell you what’s breeding mosquitoes on your property—clogged gutters, low spots holding water, neglected plant saucers, etc. Eliminating breeding sites is the most effective long-term control.
Step 3: Barrier Treatment Application We apply residual insecticide to vegetation, under eaves, on fences, and other areas where adult mosquitoes rest during the day. When mosquitoes land on treated surfaces, they pick up product and die. This dramatically reduces adult mosquito populations in your yard.
Step 4: Larvicide Treatment (If Applicable) For standing water that can’t be eliminated (koi ponds, decorative fountains, rain barrels), we apply larvicide products that kill mosquito larvae before they become biting adults.
Step 5: Ongoing Maintenance Mosquito treatments last 3-4 weeks in South Texas conditions. For season-long control, we return monthly during mosquito season (April through October).
What to Expect from Treatment
Immediate Results: You’ll notice significantly fewer mosquitoes in your yard within 24 hours of treatment.
Duration: Treatments remain effective for 3-4 weeks under normal conditions. Heavy rain can reduce effectiveness.
Not 100% Elimination: We treat your property, but mosquitoes can fly in from neighbors’ yards, nearby retention ponds, or undeveloped areas. Treatment makes your yard much more comfortable but won’t eliminate every mosquito.
Best Combined with Source Reduction: Treatment works best when you also eliminate breeding sites. If you’ve got standing water producing hundreds of mosquitoes daily, treatment effectiveness is limited.
DIY Mosquito Prevention
These steps reduce mosquito breeding on your property:
Eliminate Standing Water:
Reduce Adult Habitat:
Use Fans on Patios: Mosquitoes are weak fliers. A strong fan makes it difficult for them to fly and bite. This is surprisingly effective for outdoor seating areas.
Screen Maintenance: Repair torn window screens and keep doors closed. Mosquitoes will come inside if given the chance.
What Doesn’t Work Well
Bug Zappers: Kill tons of insects, but most aren’t mosquitoes. Studies show zappers kill beneficial insects and have minimal impact on mosquito populations.
Citronella Candles: Provide minor protection in immediate area (2-3 feet), but don’t reduce mosquito populations. Better than nothing for small outdoor gatherings.
Ultrasonic Devices: Don’t work. Multiple studies show these have zero effect on mosquitoes.
Mosquito Misting Systems: Expensive to install and require regular refills. They work, but professional barrier treatments are more cost-effective for most homeowners.
Bug Spray Alone: Personal repellent protects you but doesn’t reduce mosquito populations in your yard.
Special Event Treatment
Having an outdoor wedding, graduation party, or event? We offer one-time mosquito treatments 24-48 hours before your event. This knocks down mosquito populations so your guests can actually enjoy being outside.
Call us at least a week in advance to schedule: 956-777-6328
Commercial Mosquito Control
We provide mosquito control for:
Commercial properties need consistent mosquito control to keep customers and residents comfortable. We customize programs based on property size, mosquito pressure, and budget.
Health Risks from Mosquitoes in the McAllen
West Nile Virus: Documented in Hidalgo County regularly. Most infections are mild, but severe cases can cause neurological problems. No vaccine available.
Zika Virus: Local transmission has occurred in South Texas. Particularly dangerous for pregnant women due to birth defect risks.
Dengue Fever: Cases have been documented in the McAllen, including McAllen. Causes severe flu-like symptoms.
Chikungunya: Present in the region. Causes joint pain that can last for months.
Not trying to scare you, but these aren’t theoretical risks. They’re real diseases transmitted by mosquitoes in our area.
Treatment Schedule Recommendations
April-October: Monthly treatments during peak mosquito season Year-Round Option: Some customers maintain treatment November-March due to mild winters One-Time Treatments: Available for special events or testing our service
Most residential customers do monthly treatments May through September. That covers the worst mosquito months.
Rio Grande Valley Areas We Serve
Get Mosquito Control Started
Call Colco at 956-777-6328 to schedule your first mosquito treatment. We’ll inspect your property, identify breeding sites, and provide a barrier treatment that makes your yard usable again.
Stop hiding inside from mosquitoes—let’s get your outdoor space back.

Tri-Vor-Guard Technology is our advanced pest control system, combining three powerful lines of defense to protect homes and businesses across the Rio Grande Valley.
This innovative approach delivers complete, long-term protection, tackling current infestations while preventing future pest problems. With Tri-Vor-Guard, you can count on reliable, year-round defense against the most common threats in South Texas.
Posted on TakerJoes2025-10-07Trustindex verifies that the original source of the review is Google. I can’t say enough good things about Colco Pest and Weed Control! I had a pest issue that was driving me crazy, and they completely took care of it. From the moment they arrived, they were friendly, professional, and really knew their stuff. They inspected everything carefully, explained what was causing the problem, and treated every spot with precision. Within just a few days, I noticed a huge difference the pests were completely gone in all areas except 1, so i called back and let them know about it and they immediately took care of the issue. What impressed me most was how respectful and detail-oriented they were, making sure the job was done right and that I was satisfied before leaving. It’s rare to find a company that actually takes pride in their work they do now a days. If you’re in the McAllen to La Joya area and need reliable pest control, don’t waste time calling anyone else these are the people to go with. 100% recommend! Better yet I'm gonna call back right now so they can also treat the ugly weeds outside.Posted on Cristina Espinoza2025-09-12Trustindex verifies that the original source of the review is Google. Cody with Colco was very informative with explaining what he would need to do for the issue I had for indoor and outdoor pests - specifically for German roaches and fleas in the yard. I started seeing results the same day. I'm very satisfied with Colco and will continue to use their services.Posted on Martin Torres2025-09-12Trustindex verifies that the original source of the review is Google. Awesome company, they explain everything by detail in a very professional way. I greatly recommend this company to anyone who is having problems with any infestation of any kind of insects. Thank you so much for your service and looking forward in seeing you again. 🙂🙂🙂🙂Posted on Cassandra Reyna2025-08-07Trustindex verifies that the original source of the review is Google. Cody was quick and efficient. He answered on the first call and he made an appointment while on the phone because he knew I was requesting as soon as possible. He explained what he was going to do and took care of a small bee issue as well without hesitation.Posted on Silvia Robinson2025-08-07Trustindex verifies that the original source of the review is Google. Dedicated to their work. Always in time. Listens to our needs for the yard. Our yard looks better and better and less weeds. Would highly recommend their work.Posted on Richard Givens2025-08-06Trustindex verifies that the original source of the review is Google. Easy to work with. Rains delayed the service several days. Explained what he was doing. Returned several days later to confirm the treatment worked.Posted on Zen Ranch2025-08-06Trustindex verifies that the original source of the review is Google. Punctual and great attitude attention to detail. Thank youPosted on Connie Mendiola2025-08-06Trustindex verifies that the original source of the review is Google. Very professional service explained what he planned to do, and spoke of the expectation of results.Posted on Lance Robert2025-08-06Trustindex verifies that the original source of the review is Google. Great customer service 👏 👌 👍Showing our latest reviewsVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more

Creates a barrier to stop pests from entering.
Maintains ongoing protection against infestations.
Targets and removes existing pests effectively.

We begin with a detailed inspection of your home or business to pinpoint the source of the problem. This helps us understand exactly what you’re dealing with.


We don’t just treat and leave — we provide prevention tips and follow-up support to keep your space pest-free for the long run. Ready to enjoy peace of mind? Contact us today for your free quote.
Colco Pest and Weed Control proudly serves the Lower Rio Grande Valley, including McAllen, Mission, Edinburg, Pharr, Alton, Weslaco, and Alamo, providing trusted residential and commercial pest and weed control solutions backed by years of local experience.
Call +1 956-777-6328 for a free quote from trusted local pest and weed control experts today!
© 2025 Colco Pest & Weed Control. All rights reserved.
