a small jumping plant louse, Psylla pyricola, originally of Europe, that is a major pest of pears in the eastern U.S.
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- peanut oil,
- peanut worm,
- pear haw,
- pear thrips,
- pear, prickly,
- pearl ash
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