Wood Borer Carpenter Beetles

Many people ask me about insect damage – termites,ants and other critters.

But I am not really a insect or critter guy.

I am just a fix-the-critter-damage guy!

Howsomeever, sometimes such a perfect example of insect critter damage appears I feel compelled to share it with the world.

So today, for your edification, a presentation about Wood Borer Carpenter Beetles.

Check it out! I took down a few feet of damaged fascia board from a bungalow cottage style house in downtown Raleigh.

What to my wondering eyes should appear but Borer Beetles in the GOOD wood.

With the exception of a small entry hole on the protected side of the board their presence is not readily apparent.

But if you carefully shave off 3/8ths of an inch on one face the tunnels are completely visible!

There were ten of these guys packed away in just 18 inches of wood.

As you can see I found the end of these tunnels so that probably takes care of the beetles in this section of the house.

But they are industrious little buggers, so if you hear the sound of munching wood and see a little pile of sawdust drifting out of a perfectly drilled hole somewhere around your house look for a tiny *INSECTS AT WORK* sign because they are probably chomping away!

Some wood beetle links for those of you who want to know more:

Information and descriptions click this link.

Sample selection from text:

Old House Borers
Old house borers present the greatest control challenge to the pest management professional. They are large insects with a life cycle that can extend to 10 or more years. The old house borer attacks only softwoods and the initial introduction typically occurs while lumber is being stored in a lumberyard. Although named the old house borer, the first emergence of these beetles in a home usually appears within five to seven years after construction.

The earliest indication of an old house borer infestation is usually the noise made by older larvae chewing in the wood. This can be very disconcerting to the homeowner, especially in the middle of the night when larvae are most active. The appearance of oval emergence holes is the next step in the process. The frass consists of fine powder and small tightly packed pellets. Like an anobiid beetle infestation, most structural damage is caused by water infiltrating into exterior emergence holes, thus promoting decay.

Scientific Names Click This Link

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6 comments
  1. NCSU said:

    Those things look like bumblebees to me.

    • handyguy said:

      They are about the same size as bumblebees.

      I know not enough to enumerate the difference.

      Their behavior and life cycle are definitely in a class of their own.

  2. Eric said:

    10 of them in just 18 inches. Yikes! Pesky little devils.
    But like NCSU said, they do look a lot like bumble bees!

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