The spotted-wing drosophila (SWD), Drosophila suzukii Matsumura (Diptera: Drosophilidae), native to Eastern Asia, is an invasive alien species in Europe and the Americas, where it is a severe pest of horticultural crops, including soft fruits and wine grapes. The conventional approach to controlling infestations of SWD involves the use of insecticides, but the frequency of application for population management is undesirable. Consequently, alternative strategies are urgently needed. Effective and improved trapping is important as an early risk detection tool. This study aimed to improve Droskidrink^® (DD), a commercially available attractant for SWD. We focused on the chemical and behavioral effects of adding the bacterium Oenococcus oeni (Garvie) to DD and used a new trap design to enhance the effects of attractive lures. We demonstrate that microbial volatile compounds produced by O. oeni are responsible for the increase in the attractiveness of the bait and could be later utilized for the development of a better trapping system. Our results showed that the attractiveness of DD was increased up to two-fold by the addition of commercially available O. oeni when combined with an innovative trap design. The new trap-bait combination increased the number of male and especially female catches at low population densities.

中文翻译：

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带有Oenococcus oeni的液体诱饵增加了果蝇铃木的捕获

斑翅果蝇（SWD），原产于东亚的铃木松果蝇（Drosophila suzukii Matsumura）（双翅目：Drosophilidae）是欧洲和美洲的一种外来入侵物种，是园艺作物的严重害虫，包括柔软的水果和酿酒葡萄。控制SWD感染的常规方法涉及使用杀虫剂，但人口管理的应用频率不理想。因此，迫切需要替代策略。有效和改进的陷阱作为早期风险检测工具很重要。本研究旨在提高Droskidrink ^®（DD），社署市售的引诱。我们专注于添加细菌Oenococcus oeni的化学和行为影响（Garvie）转为DD，并使用了新的陷阱设计来增强引诱力的效果。我们证明了O. oeni产生的微生物挥发性化合物是诱饵诱饵增加的原因，以后可用于开发更好的诱集系统。我们的结果表明，与创新的疏水阀设计相结合，通过添加市售的O. oeni，DD的吸引力增加了两倍。新的诱饵诱饵组合增加了人口密度低的雄性和雌性渔获物的数量。