Drosophila suzukii is an invasive pest which became a serious threat to stone and berry fruit production in Europe. Knowledge about the host range of this pest and the effect of the succession of available hosts over time is however lacking in vineyard landscapes. Our study aimed to evaluate the host range of D. suzukii throughout the year in a vineyard-dominated area. We assessed egg deposition and emergence on nine wild and cultivated plant species sampled in twenty vineyard landscapes during two years. The temporal dynamics of D. suzukii presence was observed on five fruit species (Viscum album L., Prunus avium L., Sambucus nigra L., Rubus fruticosus L. aggr. and Vitis vinifera L. cv. Merlot) with different phenologies. Infestations on host plants depended on the season and the proportion of other fruits species in the landscape around the vineyard plots. The data collected enabled us to provide estimates of the population dynamics among different hosts and generations of the pest and to propose a pattern of temporal succession of host plant species adapted to our regional and agroecological context.

中文翻译：

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铃兰果蝇在葡萄园景观中的时间动态

铃木果蝇（Drosophila suzukii）是一种入侵性害虫，已严重威胁到欧洲核果类水果的生产。然而，在葡萄园景观中缺乏关于这种有害生物的寄主范围以及随时间推移可用的寄主的影响的知识。我们的研究旨在评估在一个以葡萄园为主的地区中一年四季铃木的寄主范围。我们在两年内评估了在20种葡萄园景观中采样的9种野生和栽培植物物种的卵沉积和出苗情况。在具有不同物候的五个水果种类（Viscum album L.，Prunus avium L.，Sambucus nigra L.，Rubus fruticosus L. aggr。和Vitis vinifera L. cv。Merlot）上观察到了铃木D.存在的时间动态。寄主植物的侵染取决于季节和葡萄园地周围景观中其他水果种类的比例。收集到的数据使我们能够估计不同寄主和有害生物世代之间的种群动态，并提出适应我们区域和农业生态环境的寄主植物物种随时间变化的格局。