Trap Designs for Monitoring Drosophila suzukii (Diptera: Drosophilidae) Public Deposited

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  • Drosophila suzukii (Matsumura), an invasive pest of small and stone fruits, has been recently detected in 39 states of the United States, Canada, Mexico, and Europe. This pest attacks ripening fruit, causing economic losses including increased management costs and crop rejection. Ongoing research aims to improve the efficacy of monitoring traps. Studies were conducted to evaluate how physical trap features affect captures of D. suzukii. We evaluated five colors, two bait surface areas, and a top and side position for the fly entry point. Studies were conducted at 16 sites spanning seven states and provinces of North America and nine crop types. Apple cider vinegar was the standard bait in all trap types. In the overall analysis, yellow-colored traps caught significantly more flies than clear, white, and black traps; and red traps caught more than clear traps. Results by color may be influenced by crop type. Overall, the trap with a greater bait surface area caught slightly more D. suzukii than the trap with smaller area (90 vs. 40 cm²). Overall, the two traps with a side-mesh entry, with or without a protective rain tent, caught more D. suzukii than the trap with a top-mesh entry and tent.
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  • Lee, J. C., Shearer, P. W., Barrantes, L. D., Beers, E. H., Burrack, H. J., Dalton, D. T., ... & Bruck, D. J. (2013). Trap Designs for Monitoring Drosophila suzukii (Diptera: Drosophilidae). Environmental Entomology, 42(6), 1348-1355. doi:10.1603/EN13148
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