woolly adelgid

Definitions

1. 1

   Any of various insects of either species Adelges piceae or Adelges tsugae.

   • In some parts of the Northeast, woolly adelgid and aphids are serious pests.
   • Negatively, insects unnatural to our gardens, such as the woolly adelgid, may arrive from exotic shores and devastate our hemlocks because there are no native, natural enemies that have coevolved to attack them here.
   • North America's once abundant Canadian hemlock (Tsuga canadensis) may soon become a relic and then a ghost, owing to the invasion of the woolly adelgid (Adelges tsuga annand).

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