The nest you can see is treated first. The nests you cannot see -- inside the soffit, in the ground near the foundation, in the hollow tree 20 feet away -- are found during our property sweep and treated the same visit. That is the difference.

The nest you know about and the ones you do not are all treated in the same visit.
Most wasp problems are multi-nest situations. Treating only the visible one leaves the secondary nests intact. We check all potential nesting sites on the first visit -- not because something went wrong, but because that is how the job is done correctly.
Every technician dispatched for wasp removal carries full protective equipment and species-specific treatment tools. The protective protocol is not the same for a small paper wasp eave nest as it is for a large yellow jacket ground colony. We size the response to the threat.
Void nests are the most frequently mishandled wasp situation. Spraying the entry point collapses the guards but does not reach the nest itself. We treat void nests from the inside, targeting the nest chamber directly before sealing the cavity against recolonization.
After treatment, every former nesting site receives a residual application specifically formulated to deter new nest establishment. Wasps that survived or return from foraging cannot start a new colony at a treated location that carries an effective residual barrier.
Paper wasps in Des Peres, MO are the species most frequently called about but least likely to represent a genuine safety emergency. Their open-comb nests under eaves and window frames are easily visible and often alarming in appearance, but the colony is relatively small and the wasps do not attack unless directly provoked. The key distinction from yellow jackets is the open hexagonal comb -- paper wasps do not enclose the nest in a paper envelope. A paper wasp nest that is not near a high-traffic area can often be monitored rather than immediately treated, but one near a door, a play structure, or a walkway where physical contact is possible should be removed professionally. The colony dies naturally in fall, but the nesting location should be treated with residual product to prevent re-establishment next season by a new queen.
The behavioral profile of yellow jackets -- as opposed to paper wasps -- is the reason void nests and ground nests require professional treatment. A yellow jacket colony does not tolerate intrusion. The defensive response is proportional to colony size: a small early-season colony of a few hundred workers produces a manageable defense, while a late-summer colony of 4,000 or more produces a simultaneous attack by dozens of workers that can result in multiple stings before a person can retreat. DIY knockdown spray aimed at the entrance of a ground nest stimulates the colony's defensive response without delivering enough active ingredient to the interior to eliminate the population -- the result is an agitated colony that is now aware of a threat at its entrance, with hundreds of workers mobilized in defense and an undamaged nest interior.
Identifying a bald-faced hornet nest versus other paper nests is important because the treatment protocol -- and the safety profile for the person attempting treatment -- is significantly different. The enclosed gray paper envelope is the key visual identifier. Bald-faced hornets will exit the nest and pursue a threat at distances that paper wasps will not. Do not approach the nest within 10 to 15 feet without protective equipment. If the nest is in a tree near an active area of the yard, near an entrance, or in a location where children or pets will be nearby, same-day service is appropriate.
Active wasp or hornet nest in Des Peres? Call +1-866-315-0243. We dispatch same-day for active stinging insect situations in Des Peres.
Void nests are confirmed by the pattern of worker entry and exit through a single gap in the exterior structure. Unlike aerial nests or ground nests, the nest body is completely invisible from outside. The danger of the entry-point-spray approach is not just ineffectiveness -- it can cause the colony to establish secondary exits deeper in the wall, meaning workers begin exiting inside the structure if there is interior drywall access or through different exterior locations. The problem expands rather than being contained. Void injection through an interior or exterior access point that reaches the nest chamber is the approach that eliminates the population. Sealing the entry point afterward prevents recolonization.
The fall window after natural colony die-off is the right time to apply residual to recurring nesting sites. Eave surfaces where paper wasp combs have been removed year after year, attic ventilation screens with prior yellow jacket activity, and foundation areas near prior ground nest sites all benefit from post-season residual application. It prevents the queen that overwinters from re-establishing at the same location -- the most predictable source of next year's nest problem. For properties with structural vulnerabilities -- gable vents, attic ridge vents, deteriorated fascia board gaps -- we assess those sites at the same time and discuss whether exclusion repairs would further reduce re-entry risk in future seasons.

Same-day response for active wasp and hornet nests in Des Peres. Call and we confirm arrival before you hang up.
Call +1-866-315-0243Same-day dispatch for active nests. Scheduled visits for preventive treatment.

Full property sweep is the first step. Treatment sequence follows from the complete nest map.
Treatment includes removal and the residual application that prevents next-season re-establishment at the same site.
Ground nest treatment with full protective gear, correct product application to the nest interior, and entrance sealing to prevent reuse.
Hornet nests in trees and on structures treated from a safe distance with professional equipment. Do not attempt DIY treatment on enclosed hornet nests.
Void nest identification by entry pattern and acoustic confirmation. Treatment through interior or exterior access point to the nest chamber -- not at the entry hole. Entry sealed after colony elimination to prevent recolonization and structural moisture issues.
Fall application of residual insecticide to prior nesting sites -- eave boards, gable vent edges, former ground nest entrances, and soffit gaps -- to prevent spring queen establishment at the same location.
Clear process, confirmed on the call.
Describe what you see -- nest type, location, proximity to people. We assess the threat level on the call and confirm same-day availability in Des Peres.
Every technician arrives equipped for all nest types. The equipment appropriate to the specific situation is already on the vehicle.
The sweep happens before any treatment. Every nest type on the property is identified, mapped, and included in the treatment sequence.
Nests treated in the correct sequence based on threat level and location. Ground nests last (highest defensive response). Aerial and void nests treated with species-appropriate protocol. Residual applied to all former nesting sites after elimination.
Three different nest types, three different protocols, three problems solved.
I found the ground nest when I was nearly on top of it. Called Show Me Pest Control immediately. Same-day service on a Sunday. Technician found two additional nests during the sweep. Every nest treated. No stings at pickup the next day.
I sprayed a gray paper nest in a tree with a knockdown can from 8 feet away and got stung 11 times retreating. I had no idea it was a hornet nest -- I thought it was a normal wasp nest. Show Me Pest Control came out, identified it as bald-faced hornets, and treated it with extension equipment from a safe distance. Nest was inactive within 15 minutes. I would not have survived another attempt with the spray can.
Customers were getting stung at the front entrance of my business from a nest nobody could find. A previous contractor sprayed the outside of the soffit repeatedly with no result. Show Me Pest Control accessed the void from the attic, identified the nest in the cavity, treated directly, and sealed the entry. Zero customer stings the following season.

Show Me Pest Control in Des Peres: same-day response, all nest types, correct protocol. Call +1-866-315-0243.
Call +1-866-315-0243 -- Same Day