Carpenter Bees: Nasty Destroyers or Beneficial Pollinators?

Bees are vital pollinators that play a critical role in plant reproduction and sustaining healthy ecosystems. But some species, like carpenter bees, can wreak havoc on your property. 

These solitary insects burrow tunnels in wood to create nests, which can cause irreparable damage to your house over time. Let's explore how to identify and eliminate carpenter bees and effective strategies for protecting your wood for long-term prevention.

What Are Carpenter Bees?

Carpenter bees are big blue-black bees native to eastern North America. Size-wise, they appear similar to the bumble bee but have a few important differences.

These solitary insects live alone and nest like tiny woodpeckers. Unlike honeybees, which build hives, carpenter bees burrow tunnels in wood. They use these carpenter bee house tunnels to lay eggs and raise their young.

Are Carpenters Bees Dangerous?

Carpenter bees are mostly a nuisance, not a danger. They only sting if provoked, especially near their nest. The sting hurts, but it's no worse than a wasp sting.

Unlike termites, carpenter bees don’t feed on wood. The main problem with these insects is their nesting process. Their tunnels can damage decks, siding, or even furniture over time. 

Besides unpleasant sights, carpenter bee holes can damage the integrity of a main house pillar or cause water to enter the holes and decay the wood over time. 

How to Remove a Carpenter Bees Infestation

Getting rid of a carpenter bee nest completely is a long process. Doing it semi-effectively will likely cause the infestation to come back. Here's a step-by-step plan to eliminate them using carpenter bees traps and by adding a long-lasting solution.

Find Their Nest

Any large blue-black bees around the house are a sign of a potential carpenter bee infestation. Scout for perfectly round holes, about half an inch wide, in wooden decks, eaves, or furniture. 

These are often accompanied by piles of sawdust right beneath the holes. Watch for black, shiny bees actively entering or leaving these holes.

Remove It

There are many ways to remove a carpenter bee nest. Bee traps, appearing in bore or wood forms, are the safest option. 

You can also use DIY methods like a power vacuum to suck them out of the tunnels. Insecticides are another safe but prolonged option. Just remember to use gloves and protective gear when applying them around bee tunnels.

Prevent Future Nesting

The most important aspect of carpenter bee removal is long-term prevention. If the wood isn’t safeguarded, the bees will return later or in the next season.

Once removed, cover the bee holes with caulk to seal them off. Then, paint the whole surface and any other wood around the house. Carpenter bees are especially attracted to softwoods like yew, cedar, or pine.