Combining plant resistance and a natural enemy to control Amphorophora idaei

Carolyn Mitchell, Scott N. Johnson, Stuart C. Gordon, A. Nicholas E. Birch, Stephen F. Hubbard

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    The European large raspberry aphid Amphorophora idaei Borner (Homoptera: Aphididae) is a virus vector of at least four plant virus complexes making it the most important aphid pest of raspberries in Northern Europe. An approach combining a bottom-up control (plant resistance) and a top-down control (an aphid parasitoid) using Aphidius ervi Haliday (Hymenoptera: Aphidiinae) was investigated in the laboratory. Aphid performance (pre-reproductive period, total reproductive output, lifespan and r (m)) were compared when reared on both a susceptible cultivar and a resistant cultivar with significantly poorer performance on the resistant cultivar. Parasitoid attack behaviour increased with aphid density on both cultivars, but was significantly lower on resistant plants than susceptible plants. Aphids showed a greater tendency to drop from the plant when feeding on resistant plants compared with susceptible plants. The significance of the results is discussed in the context of possible control of the aphid using these combined methods.

    Original languageEnglish
    Pages (from-to)321-327
    Number of pages7
    JournalBioControl
    Volume55
    Issue number3
    DOIs
    Publication statusPublished - Jun 2010

    Keywords

    • Aphididae
    • Cultivar
    • Insect herbivore
    • Natural enemies
    • Plant resistance
    • EPICUTICULAR WAX
    • APHID INFESTATION
    • L.
    • CULTIVARS
    • HYMENOPTERA
    • PARASITISM
    • HERBIVORE
    • STRAINS

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