Before dealing with bees in New Jersey, first determine what type of bee is present and where it is nesting. Carpenter bees can bore into wood, many native bees nest individually in soil, and honey bees can establish colonies inside cavities. Those differences determine whether the activity can be left alone or deserves closer attention.

Start With the Nesting Location

Where bees repeatedly enter and exit is often more useful for identification than color alone. Bees using soil, exposed wood, flowers, or a wall opening are showing different nesting or foraging behaviors.

Where You See Activity	What It May Indicate	Useful Clues
Round openings in wood	Carpenter bees	Repeated entry into smooth holes in trim, decks, fascia, posts, or other wood
Multiple small holes in soil	Solitary ground-nesting bees	Numerous individual entrances and bees flying close to the ground
One wall, roofline, or cavity opening	Cavity-nesting insects, potentially honey bees	Consistent traffic through the same opening
Flowers and landscaping	Foraging bees	Bees moving among blooms without returning to one nearby entrance
Exposed paper nest	Wasps rather than bees	Visible papery cells or an enclosed paper structure

These clues can be observed without approaching an active nest. If insects are entering a building, boring into wood, or nesting next to a heavily used area, identify them before sealing openings or attempting treatment.

New Jersey Has Hundreds of Native Bee Species

New Jersey has far more bee diversity than the familiar honey bee and bumble bee suggest. The New Jersey Department of Environmental Protection's information on bees and other pollinating insects estimates that the state has approximately 350 species of native pollinating bees. The European honey bee, despite being one of the best-known bees, was introduced to North America.

Many native species do not live in large hives. NJDEP describes a wide range of nesting behavior, including bees that dig burrows in soil, use hollow plant stems, line nests with pieces of leaves, or bore into dry wood.

The USDA Natural Resources Conservation Service's New Jersey pollinator guidance estimates that about 70 percent of native bee species are solitary ground nesters, while roughly 30 percent are stem- or wood-nesting bees. That helps explain why dozens of bees may appear over one patch of lawn without belonging to a single large colony.

Common Types of Bees in New Jersey

A homeowner does not need to identify hundreds of individual species to make sense of bee activity. A smaller number of groups account for many of the bees noticed around lawns, gardens, decks, wood trim, and building openings.

Carpenter Bees

Carpenter bees are especially important to recognize around buildings because females excavate wood to create nesting galleries.

The eastern carpenter bee, Xylocopa virginica, is large and can be confused with a bumble bee. The abdomen is one of the easier features to compare. Carpenter bees have a shiny, relatively hairless section of the abdomen, while bumble bees have a much fuzzier appearance.

Carpenter bees do not eat wood. Females remove wood as they excavate nesting galleries. Around homes and other structures, they may use fascia, trim, railings, decks, fences, posts, soffits, and other suitable wooden components.

A smooth, round opening with a bee repeatedly entering or leaving is a stronger clue than simply seeing a large bee near a deck. Repeated nesting in the same wood can extend gallery systems and increase damage over time. A shiny abdomen combined with regular activity around round wood openings can help with carpenter bee identification.

Bumble Bees

Bumble bees are also large, but their bodies are noticeably hairier. They are native pollinators and, unlike most native bee species, live in social colonies.

Their nests can occur in protected cavities above or below ground. An individual bumble bee moving between flowers does not indicate that a nest is nearby. Flowering plants can attract workers from nests located elsewhere.

Repeated movement through one opening is more useful evidence of a nest. Whether that activity requires intervention depends heavily on location. A nest in an undisturbed part of the property creates a different situation from one beside a doorway, walkway, playground, or patio.

Honey Bees

Honey bees are social insects that maintain colonies with a queen and workers. They commonly use enclosed cavities, which can include hollow trees and protected spaces within buildings.

Steady traffic through one wall, roofline, or exterior opening can indicate that bees are using a cavity. That should not be confused with a swarm, in which a cluster of honey bees temporarily gathers outdoors while searching for a new nesting location.

The distinction matters before an opening is sealed. If an established colony occupies a cavity, closing the visible entrance without understanding the nest location does not address what is inside.

Honey bees also have significant agricultural value in the state. The New Jersey Department of Agriculture's bee inspection program reports approximately 20,000 bee colonies in New Jersey and states that they contribute to the successful production of nearly $200 million worth of fruits and vegetables annually.

Mining Bees and Other Ground-Nesting Bees

A patch of lawn or exposed soil covered with small holes and low-flying bees can look like one large nest. In many cases, it is a group of separate nests.

Mining bees, digger bees, and many other ground-nesting species are solitary. Individual females create their own burrows, although many may choose the same area when soil conditions are suitable.

That can produce dozens of entrances within a relatively small patch. The number of bees alone does not show how much of a concern the site presents. Activity along an unused property edge is different from nesting directly beside a busy walkway where the area is disturbed throughout the day.

Sweat Bees

Sweat bees are generally much smaller than carpenter bees or bumble bees. Some species are dark, while others have metallic green or blue coloration.

They commonly visit flowers and contribute to pollination. Their size and appearance are useful reminders that not every New Jersey bee is large or marked with obvious yellow and black bands.

Small bees moving among flowers without returning to a common entrance are more likely to be foraging than nesting in the structure nearby.

Leafcutter and Other Cavity-Nesting Bees

Leafcutter bees are solitary bees that use pieces of leaves as nesting material. Their presence may become noticeable when plants develop smooth, rounded cuts along the margins of leaves.

The bees are collecting those pieces for their nests rather than feeding on the leaves. Leafcutter bees and some other solitary bees use existing openings or cavities instead of excavating substantial tunnels themselves.

That is an important distinction around buildings. A bee using an existing opening and a carpenter bee actively removing wood can appear in similar areas but have very different effects on the material.

Make Sure It Is Actually a Bee

Yellow jackets, paper wasps, hornets, cicada killers, and mud daubers are wasps, not bees. Calling every yellow-and-black flying insect a bee can lead to incorrect assumptions about where it nests and how it behaves.

Body shape can help. Bees are often noticeably hairy, while many wasps have smoother bodies and more pronounced narrow waists. Nest construction provides another useful clue. Paper wasps and related species build paper-like nests, while mud daubers in New Jersey construct nests from mud.

Color alone is not reliable enough for identification. Pay attention to body shape, nest material, and the location insects return to repeatedly.

Foraging Bees and Nesting Bees Look Different

Several bees on flowering shrubs or garden plants do not necessarily mean a nest is on the property. Bees can travel into an area simply because pollen and nectar are available.

Nesting activity tends to be more consistent. Bees return repeatedly to the same opening in soil, wood, or a cavity instead of moving from flower to flower.

That difference is useful when deciding whether anything needs to be done. Multiple bees feeding on flowers may require no response, while one carpenter bee repeatedly entering a hole in fascia or steady insect traffic through a wall opening deserves closer inspection.

When Bee Activity Needs Attention

Bee activity becomes more relevant to pest control when it affects building materials, occurs inside part of a structure, or puts an active nest directly beside people.

Carpenter Bees Are Boring Into Wood

Round holes and repeated entry into the same wooden surface are signs worth investigating. Carpenter bees can extend nesting galleries through repeated use, so ongoing activity in trim, railings, fascia, posts, or similar materials can eventually result in more extensive wood damage.

Bees Are Entering a Structural Opening

Regular traffic through siding, trim, rooflines, vents, or other exterior gaps may indicate that insects are using an enclosed cavity. Identify the insects before closing the opening. What looks like a simple exterior entry point may lead to a nest that cannot be evaluated from outside.

The Nest Is in a High-Traffic Area

A nest beside a front door, patio, school entrance, work area, or frequently used walkway creates more chances for accidental disturbance. In those situations, both the species and the placement of the nest matter.

Anyone with a known serious allergy to insect stings should use additional caution around active bee or wasp nests. Signs of a severe allergic reaction after a sting require immediate medical attention.

What to Do Before Trying to Remove Bees

Do not start by spraying or sealing the first opening you see. Gather enough information to understand the activity without approaching the nest.

Watch where the insects go. From a safe distance, see whether they return to one location or continue moving among flowers.
Identify the type of opening. Note whether insects are using soil, wood, a wall gap, another cavity, or a paper or mud nest.
Look for supporting evidence. Round holes in wood, numerous separate soil entrances, or consistent traffic into one structural gap can narrow the possibilities.
Do not disturb the nest to get a closer look. Avoid probing holes, moving nesting material, or standing directly in the insects' flight path.
Do not seal an active opening before identification. First determine what is using the space and whether a nest is established inside.
Do not treat outdoor bee activity automatically. Many of New Jersey's native bees are pollinators and do not damage buildings.

Professional identification becomes more useful when insects are entering a structure, carpenter bees are boring into wood, a nest is located beside people, or you cannot confidently tell bees from wasps.

Identify the Bee Before Choosing a Response

The presence of bees does not automatically mean a property needs treatment. Solitary ground nesters in an unused part of a lawn may be left undisturbed. Bumble bees feeding on flowers are normal pollinator activity. Carpenter bees excavating structural or finished wood present a different concern, and repeated bee traffic into a wall or roof cavity should be identified before the opening is altered.

If bees or wasps are nesting where they create a safety or property concern, review BHB's bee and wasp control services for information on professional treatment. You can also visit BHB Pest Elimination to see the company's pest control services or contact BHB Pest Elimination to request help with an active bee or wasp problem.