Electrophysiological and Behavioral Responses of Oriental Fruit Moth to the Monoterpenoid Citral Alone and in Combination With Sex Pheromone

Virgilio Caleca, Faraone, Errico, Trimble, Cristofaro, Nicoletta Faraone

Risultato della ricerca: Articlepeer review

11 Citazioni (Scopus)

Abstract

The monoterpenoid citral synergized the electroantennogram (EAG) response of male Grapholita molesta (Busck) antennae to its main pheromone compound Z8 Ð12:OAc. The response to a 10-g pheromone stimulus increased by 32, 45, 54, 71 and 94% with the addition of 0.1, 1, 10, 100 and 1,000 g of citral, respectively. There was no detectable response to 0.1, 1, or 10 g of citral; the response to 100 and 1,000 g of citral was 31 and 79% of the response to 10 g of Z8 Ð12:OAc. In a ßight tunnel, citral affected the mate-seeking behavior of males. There was a 66% reduction in the number of males orientating by ßight to a virgin calling female when citral was emitted at 1,000 ng/min 1 cm downwind from a female. Pheromone and citral induced sensory adaptation in male antennae, but citral did not synergize the effect of pheromone. The exposure of antennae to 1 ng Z8Ð12:OAc/m3 air, 1 ng citral/m3 air, 1 ng Z8 Ð12:OAc 1 ng citral/m3 air, or to 1 ng Z8 Ð12:OAc 100 ng citral/m3 air for 15 min resulted in a similar reduction in EAG response of 47Ð63%. The exposure of males to these same treatments for 15 min had no effect on their ability to orientate to a virgin calling female in a ßight tunnel. The potential for using citral to control G. molesta by mating disruption is discussed
Lingua originaleEnglish
pagine (da-a)314-322
Numero di pagine9
RivistaEnvironmental Entomology
Volume42
Stato di pubblicazionePublished - 2013

All Science Journal Classification (ASJC) codes

  • ???subjectarea.asjc.1100.1105???
  • ???subjectarea.asjc.2300.2303???
  • ???subjectarea.asjc.1100.1109???

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