What's That Bug? does not endorse extermination

Large Flying Wasp like
Location: Central NJ
September 12, 2011 11:24 am
These things are swarming all over my lilac tree and seem to be killing it. Are they a stinging insect or something else? They are over an inch long and 1/4 inch in diameter.
Signature: Kathy – NJ

European Hornets Gather Lilac Bark to make paper.

introduced european hornets
2011/08/25/european-hornets-gather-bark/

Thank you so much.  I know the picture wasn’t great but I was scared to death to get too close since I am allergic to bees and wasps.  I see they do sting.  Don’t suppose you could let me know how I can save my lilac and send them away?
Many Thanks for your speedy reply
Kathy

They are gathering bark to make their paper nest.  The hive should die out with the onset of winter.  We don’t really offer extermination advice.

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What's That Bug? does not endorse extermination
Location: New Jersey

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