Wasp, Hornet and Carpenter Bee Control in Maine

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Maine’s stinging-insect season is short and it escalates fast. UMaine Cooperative Extension explains that each colony is started in spring by a single fertilized queen and keeps growing through the summer as new workers hatch, with the worst nuisance in mid to late summer when colonies peak. In practice that means a nest nobody noticed in June is at full strength in August — exactly when people are outside using the deck.

What is actually on your property

A few identification points from UMaine Extension’s Home and Garden IPM pages are worth knowing before you ring anyone. The bald-faced hornet is not a true hornet at all: Extension classes it as a type of yellowjacket, black with white markings and no yellow, and warns it may attack with little provocation. The large wasp that frightens people in July is often the eastern cicada-killer, which Extension describes as about an inch and a half long, solitary and non-aggressive — it nests in the ground but is not a yellowjacket and is rarely worth treating.

Which nests we treat, and which we do not

UMaine Extension’s own advice is that hornet, wasp and yellowjacket nests should not be disturbed unless they pose a risk, and it also notes these wasps are predators of caterpillars and other insects. We follow the same logic. A paper wasp comb under a shed eave, away from doors and seating, can usually stay, and we will say so rather than sell you a treatment.

The nests that need dealing with are the ones near where people live: beside a door, over a deck or patio, in a bedroom wall, in a play area, anywhere in a lawn that gets mown, and any nest at all where somebody in the household has a sting allergy. UMaine Extension states plainly that stings can be life-threatening to people with allergies, and the U.S. CDC’s NIOSH guidance warns that venom-allergic people may go into anaphylaxis and should carry an epinephrine auto-injector. If anyone in the house has reacted badly before, say so when you call.

Nests found in late October are usually already collapsing. The Maine State Apiarist’s yellowjacket fact sheet says the colony dies after the first hard frost of the autumn, so the weather often finishes a late nest without anyone’s help.

Ground nests are the dangerous ones

Yellowjackets nesting in a lawn, a bank or a stone wall respond to vibration. A mower, a wheelbarrow or a child running past sets off a defensive response from a colony that is at its largest by late summer, and the entrance is often invisible until somebody is standing on it. UMaine Extension notes that the Vespula yellowjackets are referred to as “ground yellowjackets” for a reason.

If you have found one: mark it from a safe distance, keep people and pets away, and do not try it in daylight with a retail can. The Maine Integrated Pest Management Council’s yellowjacket tip sheet is blunt about the risk — stings are likely while spraying or removing nests, and possible the next day from wasps the spray only partly knocked down — and it says removing underground or inaccessible nests is not practical, and to hire a professional if one must go.

How a visit works

1. Locate the nest — not the insects. Wasps forage a long way from home, and the treatment has to reach the colony.
2. Identify the species, because a bald-faced hornet nest, a ground yellowjacket colony and a paper wasp comb are three different jobs.
3. Treat at dusk or after dark. UMaine Extension advises treating nests at night, when the wasps are least active, with the product going directly into the nest entrance.
4. Leave the entry open until activity stops, then seal it so the site is not reused. Extension makes the same point about wall nests: find and treat the entrance, but do not plug it, so the product is carried in and the wasps do not emerge indoors.
5. Remove the nest material where it is reachable, and note anything structural that made the spot attractive.

What customers have said about this work

Three reviews on the business’s Google profile describe stinging-insect jobs, quoted exactly as written:

“Nice guy - took care of 3 wasp nests for me after spraying them myself didnt work.” — Jeremie, June 2026, Google

“I had a terrible yellow jacket nest in my ceiling and the same day I called, Ryan showed up to take care of it for me.” — Korie, 2025, Google

“Ryan was great at locating the bee’s nest. It was in a very difficult place to reach under our deck.” — Diane, 2025, Google

The first and second are the two patterns this page keeps returning to: a retail spray that did not reach the colony, and a nest inside the building rather than on it.

Late-summer scavenging is a different problem

The yellowjackets at your picnic table in August are not defending anything — they are foraging for sugar and protein. UMaine Extension’s management advice is mostly housekeeping: empty waste often, keep tight lids on bins, keep food and drinks covered, and skip perfume and bright clothing while they are about. It adds that commercial yellowjacket traps can work but typically do not attract bald-faced hornets or paper wasps, so a trap tells you little about a hornet nest.

Carpenter bees

Round holes about the width of a finger in bare fascia, rails, deck framing or shed wood, with coarse sawdust below and a male hovering nearby doing a convincing impression of a threat. Penn State’s Center for Pollinator Research, whose fact sheet places the eastern carpenter bee’s range north into Maine, says those defensive males cannot sting, and that the females — the ones that bore — rarely sting unless handled. The same publication notes that nests are reused and extended year after year, and that the bees favor pine and cedar.

The sequence that fact sheet recommends is the one we use: treat the gallery itself, seal the entrance afterwards, and then paint or stain the surface so the wood stops being attractive. Penn State is explicit that paint applied over an occupied gallery does not reach the bees inside, so finishing comes after treatment, not instead of it.

Woodpeckers make this worse by opening galleries to get at the larvae, which turns a tidy hole into a torn one. If a fascia board has been worked over by both, it is a carpentry repair with a pest control step in front of it, and the report will say so.

What a nest job costs

Nest work is quoted per nest, and the price is driven by access and height far more than by species: a nest reachable from the ground is straightforward, one in a third-story gable is not. Where a property produces nests every year — and some do, because the eaves and the shade suit them — a program can make more sense than repeat call-outs, and we will say which of the two your property actually needs. See residential pest control for how an ongoing program is put together, and the wasps and hornets library page for a longer guide to telling the species apart.

Updated 2026-10-04.