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psylla

[sil-uh]
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noun
  1. jumping plant louse.
Also psyl·lid [sil-id] /ˈsɪl ɪd/.

Origin of psylla

< New Latin (1811) Psylla genus name < Greek psýlla flea
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for psylla

Historical Examples

  • Kieffer and related hybrids are somewhat immune to San Jose scale, but are very susceptible to psylla.

    The Pears of New York

    U. P. Hedrick

  • Other pests, as psylla, the scab-fungus, and codling-moth beset the pear and make profits uncertain.

  • The psylla is a minute, sucking insect, wingless in its immature stages, but winged and very active as an adult.

  • The psylla, while irregular in its outbreaks, is most damaging and hard to control when it appears.