Martínez Andrés S, Germano Mónica D, Chillo Verónica, Franza Facundo, Fischbein Deborah, Cardozo Andrea, Masciocchi Maité
Laboratorio de Plagas y Enemigos Naturales, Grupo de Ecología de Poblaciones de Insectos, IFAB (INTA EEA Bariloche-CONICET), 8400, Bariloche, Río Negro, Argentina.
Laboratorio de Entomología, Grupo de Ecología de Poblaciones de Insectos, IFAB (INTA EEA Bariloche-CONICET), 8431, Lago Puelo, Chubut, Argentina.
Sci Rep. 2025 Feb 20;15(1):6208. doi: 10.1038/s41598-025-90147-4.
The spotted-wing drosophila (SWD), Drosophila suzukii (Matsumara) (Diptera: Drosophilidae), is a serious global pest. Understanding the drivers for its success is fundamental to develop sustainable management tools. Here we aim to gain further understanding of environmental influences, seasonal patterns, and landscape complexity that could promote population growth and dynamics of SWD in the Andean region. To achieve this, traps baited with apple cider vinegar were placed in the Andean region of Patagonia, where soft-skinned fruit farming is a key activity and SWD is well established. Traps were deployed in four transects, covering cultivated areas and non-crop habitats. Trap inspections were conducted twice per month during two years, with all SWD counted and sexed. Bycatch was also recorded. We observed SWD high abundances in summer and autumn across most environments, and sustained populations in the peripheral forest and wild blackberries year-round. Farms near forests experienced higher SWD populations in summer compared to those farther away. Successful management of this global pest should consider neighboring areas to farms as part of the deployed tactics. Incorporating this knowledge to future management strategies and predictive models for SWD could help reduce this pest´s damage, while minimizing the use of pesticides.
斑翅果蝇（SWD），铃木果蝇（松村）（双翅目：果蝇科），是一种严重的全球害虫。了解其成功的驱动因素是开发可持续管理工具的基础。在这里，我们旨在进一步了解可能促进安第斯地区斑翅果蝇种群增长和动态的环境影响、季节模式和景观复杂性。为了实现这一目标，在巴塔哥尼亚的安第斯地区放置了用苹果醋诱饵的诱捕器，那里软皮水果种植是一项关键活动，且斑翅果蝇已广泛存在。诱捕器部署在四个样带中，覆盖耕地和非作物栖息地。在两年时间里，每月对诱捕器进行两次检查，统计并区分所有斑翅果蝇的性别。同时也记录兼捕情况。我们观察到，在大多数环境中，斑翅果蝇在夏季和秋季数量众多，并且在周边森林和野生黑莓中全年都有稳定的种群。与距离森林较远的农场相比，靠近森林的农场在夏季斑翅果蝇数量更多。对这种全球害虫的成功管理应将农场附近区域视为所采用策略的一部分。将这些知识纳入未来斑翅果蝇的管理策略和预测模型中，有助于减少这种害虫造成的损害，同时尽量减少农药的使用。
