Feeding stimulants of Solanaceae-feeding lady beetle, Epilachna vigintioctomaculata (Coleoptera: Coccinellidae) from potato leaves

Nobuyuki Endo, Makoto Abe, Takayuki Sekine, Kazuhiro Matsuda

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)

    Abstract

    A phytophagous lady beetle, Epilachna vigintioctomaculata, feeds mainly on potato (Solanum tuberosum) leaves. The methanol extracts of potato leaves showed feeding stimulative effects on the adult of the beetle. The feeding stimulants were isolated and identified as methyl linolenate from a lipid-soluble fraction, and glucose and fructose from an aqueous fraction. Although methyl linolenate alone was inactive, it acted synergistically with sugars. Methyl linolenate maximized the feeding activity of sugars at the concentration contained in the potato leaves. It is suggested that methyl linolenate plays an important role in the host selection of E. vigintioctomaculata.

    Original languageEnglish
    Pages (from-to)411-416
    Number of pages6
    JournalApplied Entomology and Zoology
    Volume39
    Issue number3
    DOIs
    Publication statusPublished - 2004 Aug

    Keywords

    • Epilachna vigintioctomaculata
    • Feeding stimulants
    • Host plant selection
    • Methyl linolenate
    • Solanaceae

    ASJC Scopus subject areas

    • Insect Science

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