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Monday October 10th 2011    Tim Candler

      One immediate consequence of September Eleventh 2001 here in the United States was a reduction in the numbers assigned to hunt down non-native species at ports of entry.  It was a good time to be a Wasp in search of new empires.  Those were the old days of course, because more recently danger from what the fashionable call "invasive taxa," is again high on the lists of priority. 

     It is very difficult apparently to make the distinction between a European Wood Wasp which lays eggs in living trees and Native Wood Wasps which lay eggs in deceased trees, but symptoms of European Wood Wasp in living Pine are as follows.  Wilting needles that eventually turn red or brown.  Resin flow.  And when the female of this species has deposited her eggs in heart wood she dies and remains stuck in the tree.  The damage to Pine is caused by a fungus she carries.

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