Analysis of peach fruit headspace volatiles and response by the fruit-piercing moth Oraesia excavata (Lepidoptera: Noctuidae)

Yohei Izumi, Ruilin Tian, Shoji Sonoda, Yuriko Imayoshi, Hisakatsu Iwabuchi, Yuji Miyashita, Shuji Kanazaki, Hisaaki Tsumuki

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    The fruit-piercing moth Oraesia excavata (Butler) only attacks ripe as opposed to immature peach fruits. The moth putatively uses volatile emissions from ripe peach fruits as a cue for food orientation. The volatiles emitted by ‘Hakutou’ peach (Prunus persica L.) fruit during maturation were analyzed by headspace solid-phase microextraction followed by gas chromatography and mass spectrometry. Although seven compounds increased remarkably during maturation, among them, only ethyl acetate and ethyl butanoate elicited electroantennographic responses. During a field-trap test, traps baited with both compounds captured moths, but significantly fewer moths were captured by the traps as compared to peach fruit. However, traps baited with a mixture of both compounds and lactones peculiar to ripe peach fruits captured more moths than did traps with ripe peach fruits only. The results of a seasonal survey using this mixture as an attractant suggest that seasonal forecasting of the fruit-piercing moth is possible.

    Original languageEnglish
    Pages (from-to)231-238
    Number of pages8
    JournalApplied Entomology and Zoology
    Volume50
    Issue number2
    DOIs
    Publication statusPublished - May 1 2015

    Keywords

    • EAG
    • Ethyl acetate
    • Ethyl butanoate
    • Lactone
    • Oraesia excavata
    • ‘Hakutou’ peach

    ASJC Scopus subject areas

    • Insect Science

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