The role of chemical cues in host and mate location in the pear psylla Cacopsylla bidens (Homoptera: Psyllidae)

Victoria Soroker, Salavat Talebaev, Ally R. Harari, S. Daniel Wesley

Research output: Contribution to journalArticlepeer-review

73 Scopus citations


Chemical communication was shown to play a role in the pear psylla, Cacopsylla bidens. Electrophysiological (EAG) and behavioral responses were investigated in males and females pear psylla . Males were found to be attracted to females, and especially to those on host plants, but not to males, uninfested host plants, or plants infested with conspecific larvae. On the other hand, females were not attracted to males or females but displayed some attraction to host plants. Furthermore, females showed a preference for uninfested pear versus plants infested with conspecific larvae. The antennae of males gave highest electroantenographic response to volatiles from pears infested with females but not males, while females, responded also toward the volatiles of pear alone. These results indicate that females of C. bidens emit sex pheromones that are attractive to the males and suggest that, host volatiles may play a role in host selection by pear psylla females.

Original languageEnglish
Pages (from-to)613-626
Number of pages14
JournalJournal of Insect Behavior
Issue number5
StatePublished - 1 Sep 2004
Externally publishedYes


  • Cacopsylla bidens
  • kairomones
  • pear
  • pear psylla
  • pheromones

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science


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