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ViewAttendees 2

Student 10-Minute Paper

Plant-Insect Ecosystems

Student Competition

Student

Grad Competition P-IE: Biocontrol - Parasitoids

Establishing Ganaspis brasiliensis in Michigan for biocontrol of spotted-wing drosophila

Monday, November 6, 2023
11:30 AM – 11:42 AM ET
Location: Gaylord National Resort & Convention Center, Maryland 1-2
In-Person Student Competition

    Presenting Author(s)

  • AJ

    Andrew Jones

    Michigan State University
    East Lansing, Michigan

Spotted-wing drosophila (SWD), Drosophila suzukii, is an invasive species that continues to run rampant in cherry, blueberry, and other berry crops, and has been a major disruption to integrated pest management (IPM) programs in these systems. SWD can utilize a broad range of hosts, including wild berries in wooded habitats adjacent to commercial fruit farms. To prevent infestation and crop loss, pesticides are sprayed from early fruit ripening up until harvest to target adult SWD in commercial cherry and blueberry production systems. This method increases costs to the grower and disrupts the services that could be provided by natural enemies. Wooded edges often harbor natural enemies of fruit pests, unfortunately due to SWD’s invasive species status, there are no host specific species endemic to North America. To improve biocontrol of SWD, surveys were conducted in Southeast Asia to identify an efficient native larval parasitoid. Ganaspis brasiliensis was permitted for release in 2022 on U.S. farms in 13 states. Because early season SWD populations build up in wild hosts adjacent to fruit farms, Ganaspis brasiliensis was released in wooded edges of cherry and blueberry plantings across west Michigan in an attempt to establish the parasitoid as a biocontrol agent against SWD. Here we report on our results so far.