Yellowjacket Control in Leon Springs and The Dominion
In Leon Springs and The Dominion, yellowjackets usually get noticed in late summer: a steady stream of small black-and-yellow wasps flying in and out of one hole in the ground, or a crowd of them around a trash enclosure or an outdoor table. Mark the spot, keep people and mowers away, and don't pour anything down the hole. An established nest is a job for a professional.
Call or text (210) 281-1064, or use online booking, to have the nest looked at.
How do you know it's a yellowjacket nest? #
Yellowjackets are about 1/2 inch long, smooth and shiny, black with yellow bands, with clear wings. They carry no pollen, which is one way to tell them from honey bees. AgriLife notes people often call them "hornets." The queen is much bigger and mostly orange.
The nest is the clincher. It's a paper carton, fully enclosed except for an entrance hole, and AgriLife's Field Guide says it's most often underground, though some end up in wall voids or indoors. What you usually see is the traffic: wasps diving straight into a hole in the lawn, a bank or a crack in the siding. An open umbrella comb on an eave is a paper wasp instead; see our paper wasp page for this area.
Shared dumpsters and mowed common areas in 78257 #
This part of northwest Bexar County is more apartments than many people expect. Census figures put 66.0% of the homes in 78257 in buildings with five or more units, and about half in buildings with 20 or more.
That kind of housing offers yellowjackets two easy targets:
- Shared trash. AgriLife's E-239 recommends lids kept shut and cans emptied daily.
- Mowed grounds. Insects in the City warns that mower vibration can set off an attack. A ground nest in a common lawn puts crews and residents at risk.
If you rent, report nests and busy holes to management rather than treating common ground yourself.
Open land outside the city line #
The other half of the picture is open ground. The 2020 Census ZIP-to-place file shows 58.0% of the land in 78257 sits outside any town or Census-designated place. Yards, roadsides, embankments, abandoned rodent burrows and old furniture left outdoors are all nest sites AgriLife names. On a larger tract, a mower or tractor passing over a hidden nest can bring out a cloud of wasps, which is why marking known nests matters.
August to November: when nests are biggest #
Queens start colonies alone in spring. By August and September, E-239 says, colonies reach their peak, and new queens and males come out in October and November. B-6118 adds that workers can be aggressive while foraging, especially in fall.
Sources differ on size: the Field Guide mentions up to 4,000 workers, while E-239 describes some Texas nests with 20,000. Most colonies die at the first hard frost, but AgriLife says some Texas colonies can carry over and keep growing in mild winters or sheltered sites.
Smart moves and risky ones #
Smart:
- Leave a nest in an out-of-the-way spot alone and put a warning sign by it.
- Close trash lids and empty cans often.
- Seal wall and eave gaps once no colony is using them.
- If they come after you, cover your head and run to a car or building.
Risky:
- Swatting, or jumping into a pool to escape.
- Gasoline down the hole. It's a fire hazard and fouls the soil.
- Liquid sprays into a ground nest, which mostly soak into the dirt.
- Plugging a wall entrance while the colony is alive; the wasps may chew their way inside.
- Counting on traps. They catch foragers but don't end a colony.
Stings come in numbers when a nest is disturbed. AgriLife says anaphylaxis usually shows up within 20 to 30 minutes, and can turn serious in as little as 10 to 15, so anyone with trouble breathing or swallowing, dizziness or fainting needs care fast.
How Pest Trappers handles yellowjackets in Leon Springs and The Dominion #
The technician finds the entrance, works out whether the colony is in the ground, a wall or another void, and checks for more than one nest. You'll hear the options and what each involves; wall-void jobs in particular need care around wiring, and every product is applied by its label. Pest Trappers LLC (TPCL #0887549) is a family-owned business with Travis Lambert as its certified applicator. We quote after the inspection, and the office confirms your appointment. Learn more in our yellowjacket guide or on the Leon Springs and The Dominion page.