CLOSED: Some neat shots of a...?

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kwanjin (Zone 7a) Sep 07, 2009

I found 2 of these "playing" in the buckthorn. They're pretty but what are they?

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kwanjin (Zone 7a) Sep 07, 2009

Another shot.

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suunto Sinks Grove, WV Sep 08, 2009

These appear to be wood wasps (Hymenoptera: Siricidae), sometimes called horntails. Their larvae tunnel in the wood of dead or dying trees.

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kwanjin (Zone 7a) Sep 08, 2009

Thank you. Are they harmful? We don't see them often and this was a real treat. I wish I could have gotten the whole show.

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suunto Sinks Grove, WV Sep 08, 2009

It depends on the species and circumstances - see http://tinyurl.com/ktdadz for an example, They do not really contribute to the death of the trees themselves, but their tunneling can affect lumber quality in some cases.

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kwanjin (Zone 7a) Sep 08, 2009

After reading this and doing other research I may have to talk to my neighbor. He has a dying pine tree that may be the culprit. I see holes like that in his tree.

Thanks for the insight.

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