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South Central · State guide

Pests in Texas

Hot summers across most of the state, with a long season warm enough for continuous insect activity. The Gulf Coast is humid enough that mold and moisture problems follow every rain. The single most-searched pest in Texas is Mosquitoes. Below: what drives pressure here, when each pest peaks, and the prevention steps that matter most in this climate.

5
pests tracked
5
have a peak month
13
guides linked
6b–9b
hardiness zone

Mosquitoes

Looks like
Small dark flies with long legs; females pierce skin to feed on blood
Where you find it
Anywhere water stands: tires, gutters, birdbaths, buckets, planters, roof voids
Size
1/4 to 1/2 inch (6–13 mm)
Health risk
high

Mosquitoes transmit West Nile virus, eastern equine encephalitis and La Crosse encephalitis. Protect skin with repellent first, then treat the yard; spraying alone rarely clears an active yard.

Signs in the home

  • Biting within minutes of being outdoors or near standing water
  • Puddles that never drain after rain
  • Egg rafts on the surface of standing water
  • Birds or amphibians behaving unusually

[ 02 ] Local pressure

Pests that drive pressure in Texas

Each bar shows twelve months of seasonal activity. Bars come from the same dataset as the pest activity index, so the months here always match the months there.

Mosquitoes

most searched

Peaks in May, Jun, Jul, Aug

Anywhere water stands: tires, gutters, birdbaths, buckets, planters, roof voids

Guides coming soon

Termites

Peaks in Apr, May, Jun

Foundations, crawl spaces, wooden structures in contact with soil

6 guides

Scorpions

Peaks in Apr, May, Jun, Jul, Aug

Southwest homes: walls, attics, closets, shoes, landscape rock

1 guide

Rats

Peaks in Jan, Feb, Oct, Nov, Dec

Basements, sewers, burrows by foundations (Norway); attics and trees (roof)

3 guides

Peak Active Low Dormant

[ 03 ] Climate

What Texas's climate does to pest pressure

South Central · zone 6b–9b

Hot summers across most of the state, with a long season warm enough for continuous insect activity. The Gulf Coast is humid enough that mold and moisture problems follow every rain.

Long seasons warm enough for continuous activity, with high structural pest pressure.

Seasonal timing moves with local weather. A warm wet spring in Texas can pull a spring species forward by a month, and a dry year can delay a fall species. Use the bars above as a planning window, not a forecast.

[ 04 ] Local mistake

The thing homeowners in Texas get wrong

Most Texas termite treatments are priced per linear foot of foundation, not per room, and a lot of companies will talk you into a whole-house barrier treatment when a localized bait station would do. Ask which of the two you actually need before you sign.

How to choose a pest control pro

[ 05 ] Prevention

What to do in Texas before the season starts

Ordered by how much they move the needle in this climate, not by how easy they are.

  1. 1

    Get a termite inspection before you close on a house, and every year after — Texas sits in the highest-cost termite zone in the country

  2. 2

    Check for water pooling against the foundation after every heavy rain; almost all subterranean termite entries start there

  3. 3

    Drain or treat every standing-water container weekly from April to October, including low spots you cannot reach with a hose

[ 06 ] Questions

Texas pest questions

What is the most common pest in Texas?

Flies, ants and mosquitoes are the three most-searched household pests in the United States. In Texas the top-searched pest is Mosquitoes. It is a search-interest ranking rather than a count of infestations, but it tracks what people are actually asking for help with.

What month are pests most active in Texas?

It depends on the pest, and the month-by-month answer differs by climate zone. Texas sits mostly in USDA hardiness zone 6b–9b. Check the peak months on each pest card above, or use the full pest activity index for the year-long view. Seasonal timing always shifts with local weather, so treat the calendar as a planning aid rather than a forecast.

Can I treat pests in Texas myself, or do I need a pro?

Most of the pests on this page are within reach of correct DIY if you identify the species first and use the method that matches it. Termites, bed bugs, wildlife in the attic and any infestation that spans several rooms are the honest exceptions. The pro threshold is usually about two weeks of correct method with no change, not about the size of the sighting.

Why do I get pests in Texas even after treating?

In most repeat cases the treatment missed the source rather than failing. Water against the foundation, an unsealed gap that leads indoors, or a colony living inside a wall where a surface spray cannot reach it are the usual explanations. Identify where the pest is living before you buy anything for it.

Pro threshold

When to stop treating it yourself in Texas

Two weeks of correct method with the right product and no change is the honest limit. Past that, a pro finds what you cannot see — and you should ask which product they are using and why, what the guarantee covers, and whether the price is per treatment or per year.

How to choose a pro

[ 07 ] Nearby

Other south central states

All 21 states

Search-interest ranking: Organic Lesson, “The Most Troublesome Household Pests in Each State,” Google Trends analysis of 30 common household pests, reported by Pest Control Technology. Read the study summary. Zone ranges are USDA Plant Hardiness Zones. Monthly activity is this site's own dataset, also published on the pest activity index.