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Video Q&A

Plant-Insect Ecosystems

Section Symposium

IOBC-NRS Symposium: Diversity in Biocontrol: Scale, Systems, and Practitioners On-Demand Presentations

Dispersal and establishment of parasitoids of Agrilus planipennis in the eastern U.S.

On-Demand
On-Demand

    Presenting Author(s)

  • NQ

    Nicole F. Quinn

    Postdoctoral Research Associate
    USDA-ARS
    Newark, Delaware

    • Co-Author(s)

  • Juli R. Gould

    Entomologist
    USDA-APHIS
    Buzzards Bay, Massachusetts

  • Claire E. Rutledge

    Associate Agricultural Experiment Station
    The Connecticut Agricultural Experiment Station
    New Haven, Connecticut

  • Dan S. Gruner

    Associate Professor
    University of Maryland
    Silver Spring, Maryland

  • JE

    Joe Elkinton

    University of Masachusetts
    Lansing, Massachusetts

  • JD

    Jian Duan

    Research Entomologist
    USDA-ARS
    Newark, Delaware

The emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), is among the most damaging invasive insects in North America, where it has been responsible for catastrophic ash mortality, upending ecosystems and causing economic harm. As a result, there has been great interest in developing a classical biological control program for this invasive insect throughout its range. In the state of Maryland, several parasitoids have been approved for release, including Spathius galinae Belokobylskij & Strazenac(Hymenoptera: Braconidae) and Tetrastichus planipennisi Yang (Hymenoptera: Eulophidae). These parasitoids have been released at several locations in the state. This study examines the establishment and spread of these parasitoids at two of these release sites. Sentinel logs containing emerald ash borer larvae were deployed at each release location and at regular intervals up to 10 km away from each initial release site. Once retrieved, sentinel logs were monitored for parasitoid emergence and subsequently dissected to determine larval fate. Results are discussed in the context on ongoing biological control efforts.