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mjr6550

Identify WDI damage

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I performed a structural inspection today and this was identified as termite damage. The smooth channels look more like carpenter ants, but the frass makes me think this is some type of beetle. I mainly want to confirm that it is not termite damage. BTW, no drywood termites in this area.

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A couple more photos. Old house borers is a possibility. The pellets look a lot like photos of drywood termite pellets, but I have never seen them and they would be rare for this area. From what I have read they eat across the grain. This wood was channeled along the grain.

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I don't think you can say termites always cut across the grain, They can cut across, but will run with the grain if the wood tastes good that way.

There's not enough clues in those pics to make a definite call.

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That is not wood boring beetles. That frass is from Drywood Termites. Under a strong magnifying glass or microscope the fecal pellets look like this:

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Drywood Termites

Just as the name suggests, drywood termites live in dry wood. Unlike many other termite species, they do not need contact with the soil to survive. This termite species can tolerate dry conditions for long periods of time, since it receives all of the moisture it needs from the wood it consumes and the metabolism it uses to digest the wood.

Drywood termites commonly target the wood in your home?s structural timbers, framing, furniture and hardwood flooring. Wood consumed by drywood termites appears very clean and smooth ? as if the wood had been smoothed by sand paper.

Drywood termites can infest several different areas in your home, forming separate colonies in your basement, attic or porch. They are usually found in warmer climates that do not reach freezing temperatures in the winter. However, this species of termite can survive in northern climates in homes with air conditioning.

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