Meaning of spruce budworm

spruce' bud"worm

Pronunciation: (bud'wûrm"), [key]
  1. the larva of a common tortricid moth, Choristoneura fumiferana, that is a destructive pest primarily of spruce and balsam fir in the northern and northeastern U.S. and in Canada.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.