Wasps, Hornets, and Yellow Jackets in Suffolk County: Identification and Removal
Bald-faced hornets, yellow jackets, and paper wasps build nests across Suffolk County homes from May through October. Here is how to identify what you have and what removal actually requires.
Stinging Insect Season in Suffolk County
From May through October, Suffolk County homeowners encounter a predictable progression of stinging insect activity — paper wasp nests appearing under eaves in spring, yellow jacket colonies expanding through summer until they are large enough to be noticed (usually when someone gets stung), and the dramatic appearance of large bald-faced hornet nests in shrubs and tree branches by late July and August.
Understanding which species you are dealing with is the most important first step, because the behavior, nest location, and appropriate removal approach differ significantly between species.
The Main Stinging Insects in Suffolk County
Yellow Jackets: The High-Aggression Problem
Yellow jackets are the stinging insect responsible for the majority of serious sting incidents in Suffolk County. They are highly aggressive in defense of their nest, capable of stinging multiple times without dying, and will pursue threats for significant distances from the nest entrance.
Identification:
Yellow and black banded abdomen, approximately half an inch long. Often confused with bees, but yellow jackets are completely hairless and smooth in appearance, with a distinctly pinched waist.
Nest types in Suffolk County:
*Underground yellow jacket nests:* The most dangerous configuration. Yellow jackets commonly nest in abandoned rodent burrows, voids beneath concrete pavers, gaps beneath deck structures, and naturally occurring soil voids. Nests are completely hidden — the only visible indicator is a stream of yellow jackets entering and exiting a small ground-level opening. These nests grow throughout summer and by late August and September can contain thousands of workers.
*Wall void and structural nests:* Yellow jackets also nest inside wall voids, attic spaces, and beneath roof overhangs, entering through gaps around window frames, eave vents, and gaps in siding.
*Aerial hanging nests:* Yellow jackets also build distinctive paper envelope nests hanging from protected locations under decks, eaves, and in dense shrubs.
Why yellow jackets are most dangerous in late summer:
Yellow jacket colonies grow throughout summer, reaching peak populations of 1,500 to 15,000 workers in August and September. Late summer workers are also naturally more aggressive — nutritional stress, nest protection instincts, and the biological pressure of the season end all contribute to heightened defensive behavior.
Bald-Faced Hornets: The Aerial Fortress
The bald-faced hornet is responsible for the striking, football-shaped gray paper nests that appear in tree branches, shrubs, and on the sides of structures across Suffolk County from mid-summer through fall.
Identification:
Larger than yellow jackets (approximately three-quarters of an inch), black with white facial markings and white banding on the abdomen. Distinctly more aggressive than standard yellow jackets when the nest is threatened.
Nest characteristics:
Bald-faced hornet nests begin the size of a baseball in late spring and grow throughout summer. By August and September, mature nests are 12 to 24 inches long and house hundreds of workers.
Where nests appear in Suffolk County:
Bald-faced hornets are highly defensive. Vibration, noise, or physical disturbance within several feet of the nest can trigger a mass stinging response. Do not attempt to remove a large bald-faced hornet nest without professional help.
Paper Wasps: The Eave Builders
Paper wasps are the least aggressive of the three main stinging insects in Suffolk County, but their habit of building small, open-comb nests under eaves, in door frames, beneath deck railings, and in other protected locations around homes brings them into regular contact with homeowners.
Identification:
Slender-waisted, long-legged, brownish with yellow markings. Paper wasp nests are distinctive — a small, open, downward-facing paper comb with visible hexagonal cells, typically attached by a single stalk to a surface. No outer envelope.
Paper wasp colonies are much smaller than yellow jacket or bald-faced hornet colonies — typically 12 to 30 workers at peak.
When to Call a Professional
Call immediately for:
Should always be handled professionally:
What Professional Stinging Insect Removal Involves
A professional treatment begins with species identification and nest location — which determines the treatment approach.
For aerial nests, treatment is typically performed in the evening when workers are in the nest and less active. A fast-acting insecticide is applied directly to the nest.
For underground nests, the entry point is treated with insecticide injected into the ground or packed into the opening. In some cases, multiple treatments are required for large, well-established colonies.
For wall void infestations, entry points are identified, the void is treated, and the entry is sealed after the colony is confirmed eliminated.
Call for Stinging Insect Removal in Suffolk County
Suffolk County Pest Control removes wasp, hornet, and yellow jacket nests across all 10 Suffolk County towns: Babylon, Brookhaven, East Hampton, Huntington, Islip, Riverhead, Shelter Island, Smithtown, Southampton, and Southold.
Call (631) 894-9702 for same-day service on active stinging insect emergencies. We identify the species, locate the colony, and apply the appropriate treatment to eliminate it completely.