Cicada Killer Control in Stone Oak, TX
The usual Stone Oak sighting is a wasp the size of your thumb hovering low over the lawn in summer, with small holes and little fans of loose soil scattered across a sunny patch. These are almost always cicada killers. They look alarming, but the males that buzz you can't sting, the females rarely do, and AgriLife experts say control is seldom needed. When the holes crowd a play space or a family member reacts badly to stings, text or call (210) 281-1064, or book a visit.
Who's hovering over your lawn? #
TAIS ranks the cicada killer with the biggest wasps in the country. Texas A&M AgriLife's venomous animals guide gives it a deep red head and thorax, a black rear end marked with yellow, and honey- or rust-tinted wings, with a length of up to roughly 1 1/2 inches (AgriLife B-6118). An older Insects in the City post stretches that to 2 inches.
The ones circling your head are males guarding territory. AgriLife notes the males put on an aggressive show yet have no stinger. Females do the digging and carry paralyzed cicadas into the burrow for their young. They can sting, but rarely do unless handled or stepped on barefoot.
These are native Texas wasps, and they are the insect most often mistaken for the "murder hornet," which has no Texas record. See the giant hornet page for Stone Oak.
Newer yards on Stone Oak's northern edge #
Females dig in sunny, bare, well-drained ground, and AgriLife's Insects in the City lists home lawns among the favorite sites (Insects in the City). Flower beds and gardens work too. Burrows run about 6 inches deep in one AgriLife account, much deeper in another, with a pile of dug-out soil at each entrance. Where the ground suits them, several females may nest close together.
Much of Stone Oak's housing is recent. Census survey data for 2020 to 2024 show that 83 to 94% of homes in the 78260 and 78261 ZIPs, on the northern fringe, were built in 2000 or later (Census ACS). Younger yards can still have thin turf and sunny beds with bare soil between plants, which is the kind of open, well-drained ground cicada killers look for.
Mowing season and bare feet #
Inside San Antonio, the property code asks owners to keep grass and weeds under 12 inches, so summer mowing is routine in most of Stone Oak. Mowing over cicada killer burrows does not set off a colony the way it can with yellowjackets, because each female works her own hole and there is no shared nest to defend.
The sting risk comes from bare feet and hands. AgriLife's wasp bulletin says females sometimes sting people working on lawns or stepping on nests barefoot. Wear shoes on the lawn in summer, and teach children not to grab the big wasps.
Cicadas overhead, wasps below #
These are summer insects. AgriLife ties the nuisance to the weeks when cicadas are in the shade trees. Each year brings a single brood; the young pass the winter underground as larvae or pupae and dig out as adults the following summer. That is why the same sunny patch can host them year after year.
Tolerate, cover or treat? #
- Tolerate. AgriLife entomologist Wizzie Brown sees no real need to control them, and the E-239 wasp bulletin agrees control is seldom justified for such a useful insect.
- Cover. Insects in the City's tip for a flower bed: once nesting ends, lay fabric over the area and mulch on top so the next crop of adults can't dig their way out.
- Treat. Worth it when burrows fill a play area or a high-traffic part of the lawn, or when someone in the house has a wasp-sting allergy. Treatment targets the burrows themselves, never a blanket spray across the yard.
Whatever you choose, don't bother swatting the hovering males; they have no stinger.
How Pest Trappers handles cicada killers in Stone Oak #
A technician confirms the insect, counts and maps the active burrows, and talks through whether they can simply be tolerated until the season ends. If treatment makes sense, you hear the options, the product label is followed at each burrow, and the price is given after the inspection. The office confirms your time. Pest Trappers LLC (TPCL #0887549), a family-owned Bexar County company, works under a Texas Department of Agriculture license. The cicada killer guide and our Stone Oak page have more.