balsam woolly adelgid

noun

variants or less commonly balsam woolly aphid

: a woolly adelgid (Adelges piceae) native to Europe that has been introduced accidentally into the U.S. where it is a serious and usually lethal pest of fir trees (such as the balsam fir and Fraser fir) see woolly adelgid

Word History

First Known Use

1952, in the meaning defined above

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