Florida's two yellowjackets, and why their nests get so big
UF/IFAS identifies Florida's yellowjackets as the eastern yellowjacket, Vespula maculifrons, and the southern yellowjacket, Vespula squamosa. Both nest in the ground, in old rodent and armadillo burrows, and in voids: under slabs, in block walls behind stucco, in attics and soffits. UF/IFAS measured one southern yellowjacket ground nest at 20 centimeters wide by 20 centimeters deep, sitting 22.5 centimeters below the soil surface. That is a colony the size of a soccer ball a hand-span underground in a Lakeland or Kissimmee lawn. The size story is the winter. UF/IFAS describes the normal cycle: a single queen founds the colony in spring, and with winter's arrival the remaining colony dies. In North Florida that holds. In the tropical south, with a median winter low of 54F across our cities, winter often never arrives in a way a yellowjacket notices, and UC IPM notes that colonies can persist several years where winters are very mild. A colony that carries over adds queens and keeps building, which is how UF/IFAS came to document a nest with more than 2,800 wasps present and an aerial nest about 2.5 meters tall. Native paper wasps, bald-faced hornets in the north, and cicada killers round out the list, but the yellowjackets are the reason Florida wasp control is its own subject.
The Florida wasp calendar, north and south
In North Florida, around Tallahassee, Jacksonville, Gainesville and Ocala, the year looks like a warm version of the rest of the South. Queens found nests in spring, colonies build through the 91F summer, late summer and fall are peak, and a winter cold snap kills the colony, per UF/IFAS. Bald-faced hornet nests in the oaks and pines follow the same clock. A high tree nest in December there can be left. Central Florida, around Orlando, Tampa, St. Petersburg, Clearwater, Lakeland and Melbourne, is the transition. Some winters deliver a killing cold; some do not. A yellowjacket nest under a slab there may or may not reset, and a provider should treat it as if it will not. South Florida, from Port St. Lucie and West Palm Beach down through Boca Raton, Fort Lauderdale, Hollywood, Miami and Coral Gables, has no off-season. The 54F median winter low is a slowdown at most. Colonies founded in February can still be alive the following February with more queens, and UC IPM's note about multi-year colonies in very mild winters describes this region. Every month is treatment season, and the rule is simple: a hidden nest found in any month gets removed that month. Across the whole state, 57 inches of rain floods burrows every summer and pushes colonies toward the dry voids in slabs and walls.
What a wasp control visit looks like at a Florida house
A provider on a block-and-stucco house in Tampa or Pembroke Pines starts by watching. They follow flight lines to the entrance, which on a Florida house is usually a slab crack at the patio or pool deck, a weep hole at the base of the stucco, a soffit vent, the frame of the lanai screen, or a burrow in the lawn. They confirm the species, because a yellowjacket burrow, a paper wasp comb and a cicada killer hole each get a different answer, and they rule out honey bees, which are common in Florida and go to a beekeeper. For yellowjackets, the kill is dust into the entrance at dusk or after dark, since Florida's warm evenings keep workers flying late. The entrance stays open a few days; sealing it first sends the colony inside. A return visit confirms the kill. Then removal: for a nest under a slab, that may be a fill; for a wall or attic nest, opening the soffit or drywall and taking out a nest that, in South Florida, may be several seasons old. For paper wasps on the lanai, it is an aerosol and a scrape across the whole cage in one visit. For a large aerial yellowjacket nest, it is a suited multi-person job. Ask beforehand what the quote covers: kill, return check, removal, sealing and repair.
Slabs, stucco, lanais and pool cages: why Florida houses get wasps
Florida housing, at a median value near $380,000 across our cities, is mostly concrete block with stucco on a slab, with a tile or shingle roof, vented soffits, and a screened lanai or pool cage out back. Each piece has a wasp use. The slab cracks where the patio and pool deck meet the house, and southern yellowjackets treat that crack as a burrow entrance. Stucco has weep holes at the base and gaps around fixtures that lead into block cores and wall voids. Soffit vents open into the attic. The lanai ceiling and every member of the pool-cage frame is an overhang for a paper wasp comb, and a cage in Cape Coral or Coral Springs can carry a dozen. The yard adds the rest. Armadillo and rodent burrows near the foundation are where yellowjacket queens set up, and sandy bare patches are where cicada killers dig. Boat lifts, dock boxes and pool equipment enclosures host combs. Prevention follows the list. Caulk the slab cracks and seal weep holes and fixture gaps in winter. Mesh the soffit vents. Fill burrows in late winter. Walk the cage and soffits in February and March with a broom while combs are one queen. And in South Florida, do not let a hidden nest ride through a winter that will not kill it.
When a Florida wasp nest cannot wait
Yellowjackets inside the house is the clearest emergency. A colony in a wall or attic that has chewed through drywall sends more workers into the room each night toward lamps and windows. Tape the hole, keep the door shut, and get a provider out within a day. A colony under the pool deck, beside a door or under a play area is the second. With UF/IFAS documenting Florida nests of more than 2,800 wasps, a slab crack at the pool deck in Davie or a lawn burrow beside a Jacksonville front walk puts thousands of workers a few feet from daily traffic, and the CDC's count of 788 sting deaths from 2011 to 2021 is why that is treated as a safety matter. The third is a household with a known venom allergy. The American College of Allergy, Asthma and Immunology puts potentially life-threatening reactions at about 3 percent of adults and a 60 percent chance of a repeat or worse reaction after a prior one. What can wait: a paper wasp comb on a rarely used side of the lanai, cicada killers in the lawn, and a bald-faced hornet nest high in a North Florida oak in December. What cannot wait anywhere south of Orlando: a wall, slab or attic nest, in any month, because the 54F winter will not end it.
How to compare two wasp quotes in Florida
Ask both companies to name the species and the nest site. In Florida, a quote for a paper wasp comb on the lanai and a quote for a southern yellowjacket colony under the slab behind it are different jobs, and if one company found the slab nest and the other did not, the higher quote may be the honest one. Then ask about sequence and what is included. Is a return visit built in to confirm the kill before sealing? Is removal included, and for a South Florida home in Miami, Fort Lauderdale or West Palm Beach, does the company expect a multi-year colony that may need drywall or soffit opened? Is the patch and paint on them or on your contractor? Are extra combs on the pool cage priced per comb or per cage? Ask about timing, since Florida yellowjackets keep flying after dusk and some companies price late visits differently. Ask what they do if the colony is honey bees, which in Florida should be a referral to a beekeeper. For a large aerial nest, ask how many people they bring. Finally, verify each applicator license with the state pesticide agency listed in the EPA or National Pesticide Information Center directory. Two quotes that agree on species, site, return visit, removal and repair can be compared on price.