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pear psylla

American

noun

a small jumping plant louse, Psylla pyricola, originally of Europe, that is a major pest of pears in the eastern U.S.

Etymology

Origin of pear psylla

1900–05; < New Latin Psylla, genus name < Greek: flea

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.