a small jumping plant louse, Psylla pyricola, originally of Europe, that is a major pest of pears in the eastern U.S.
Why Are Avocados Also Called Alligator Pears?As you munch on guacamole and chips, chew on the etymology of the humble avocado. Its many names are as wacky as the fruit is yummy.
Origin of pear psylla
1900–05; < New Latin Psylla, genus name < Greek: flea
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019