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Physiology, Biochemistry, and Toxicology

10-Minute Paper

PBT: Resistance On-Demand Presentations

Screening of insecticidal resistance in spotted-wing drosophila (Drosophila suzukii Matsumura) field populations in blueberry production regions in Georgia

On-Demand
On-Demand

    Presenting Author(s)

  • Rupinder Singh

    Graduate Research Assistant
    University of Georgia
    Athens, Georgia

    • Co-Author(s)

  • AS

    Ashfaq Sial

    University of Georgia
    Athens, Georgia

Spotted-wing drosophila (Drosophila suzukii Matsumura) is an invasive pest of soft fruits including blueberries, raspberries, strawberries, blackberries, and cherries in most production regions globally. Spotted-wing drosophila (SWD) is an economically important pest of blueberry in Georgia and causes significant damage of 20% annual crop loss to the $ 220 million Georgia blueberry industry. Insecticides are frequently used in Georgia blueberries to control the damage, but the repeated exposure combined with the pest's biology poses a severe threat of insecticide resistance. Resistance monitoring data from 2019 showed a declining susceptibility of field populations to spinosad, and other insecticides commonly used to manage SWD in Georgia blueberries. It is necessary to analyze the efficacy of commercially used insecticides to manage the SWD field infestations effectively. We screened multiple SWD field populations from the major blueberry production regions in Georgia. Insecticides including zeta-cypermethrin (Mustang Maxx 0.8EC), spinotram (Delegate WG), malathion (Malathion 8F), spinosad (Entrust SC), and N-(Mercaptomethyl) phthalimide (Imidan 70-W). The results will be discussed and can be used for formulating better management plans for SWD in blueberry production regions.