If you’re seeing large bees hovering around your deck, roofline, or porch this spring, you’re likely dealing with carpenter bees in Maryville TN.
They may look harmless — but they can cause real damage to your home over time.

What Are Carpenter Bees?
Carpenter bees are large, black and yellow bees that resemble bumblebees.
The key difference?
👉 Bumblebees have fuzzy abdomens
👉 Carpenter bees have smooth, shiny black abdomens
Instead of building hives, carpenter bees drill into wood to create tunnels where they lay their eggs.
Why Carpenter Bees Are Active in Spring

In East Tennessee, carpenter bees become active when temperatures start warming up.
Spring is when:
- Adult bees emerge from overwintering
- Mating begins
- New nesting tunnels are created
This is when homeowners in Maryville and Blount County first notice them hovering near structures.
Where Carpenter Bees Cause Damage

Carpenter bees prefer soft, untreated wood, including:
- Decks
- Railings
- Fascia boards
- Siding
- Porch ceilings
- Wooden fences
They drill perfectly round holes and then tunnel inside the wood.
Over time, this can lead to:
- Structural weakening
- Wood rot (from moisture entering tunnels)
- Increased attraction for other pests
Signs of Carpenter Bee Activity
Homeowners dealing with carpenter bees in Maryville TN often notice:
- Large bees hovering in the same area
- Perfectly round holes in wood (about the size of a dime)
- Sawdust-like material beneath holes
- Yellowish staining near entry points
Male carpenter bees may appear aggressive, but they don’t have stingers — they’re just territorial.
Why Carpenter Bees Keep Coming Back
One of the biggest frustrations homeowners face:
👉 Carpenter bees return to the same areas year after year.
Old tunnels attract new bees, and over time the damage compounds.
What Homeowners Can Do
To reduce carpenter bee activity:
✔ Paint or seal exposed wood
✔ Replace heavily damaged wood
✔ Fill existing holes after activity stops
✔ Keep an eye on decks and rooflines early in the season
Prevention is key — once tunnels are established, the problem tends to grow.
Why Early Treatment Matters
Spring is the best time to deal with carpenter bees.
Why?
Because this is when:
- New tunnels are being created
- Activity is concentrated
- Colonies are not yet fully established
Waiting until later in the season allows damage to increase and repeat nesting to occur.
A Little Common Sense Goes a Long Way
Carpenter bees may seem like a minor nuisance at first.
But over time, they can cause significant and recurring damage to homes in Blount County and East Tennessee.
If something doesn’t look right — especially holes in wood or repeated bee activity — it’s worth addressing early.
If you want bugs dead, you have to use Common Sense.