Also psyl·lid [sil-id] /ˈsɪl ɪd/.

Origin of psylla

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

Examples from the Web for psylla

Historical Examples of psylla

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

  • 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.