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10-Minute Presentation

Plant-Insect Ecosystems

10-min: P-IE, IPM - Horticulture 1

Optimizing attract-and-kill systems for sustainable cDrosophila suzukii control

Tuesday, November 11, 2025
11:00 AM - 11:12 AM Pacific
Location: Oregon Convention Center, E146, OCC
Oral Presentation
Drosophila suzukii (Matsumura, 1931) (Diptera: Drosophilidae), or Spotted-Wing Drosophila (SWD), is a major global pest of soft-skinned fruit crops such as blueberry, strawberry, cherry, caneberries, and winegrape. Conventional management heavily relies on calendar-based chemical applications, raising concerns over pesticide resistance and environmental sustainability. This study evaluates the efficacy of attract-and-kill (A&K) systems—integrated tools that combine behaviorally active lures with targeted toxicants—as an alternative strategy for SWD control. Laboratory, semi-field, and commercial field trials conducted in Oregon (2024–2025) assessed the behavioral response of SWD and the effectiveness of A&K under both organic and conventional toxicant scenarios. Results demonstrate that A&K significantly reduces the amount of active ingredient required compared to standard full-coverage sprays, while achieving comparable or superior levels of pest suppression. Drone-guided application further enhanced precision and minimized fruit contact, reducing the risk of pesticide residues. These findings support the incorporation of A&K into integrated pest management (IPM) programs as a sustainable and resistance-mitigating approach to SWD control.