We determined the abundance, species composition, sex ratio and seasonal dynamics of thrips on one cultivar of Welsh onion (Allium fistulosum) and eight cultivars of onion (Allium cepa) in South Poland within three vegetation seasons (2014–2016). Nine species of Thysanoptera were identified on A. cepa and A. fistulosum. Irrespective of the onion cultivar, Thrips tabaci was the dominant species (64.4% of all collected thrips specimens), while Frankliniella intonsa also occurred in high numbers (28.3%). Conversely, Welsh onion was most often inhabited by F. intonsa (62.7%), although T. tabaci was also numerous (28.3%). The predatory Aeolothrips intermedius accounted for 4.5% on A. cepa and 2.9% on A. fistulosum. In the most numerous species, T. tabaci, F. intonsa and A. intermedius populations were formed mainly by females. The cultivar most colonised by thrips was Kroll of A. fistulosum. The tested cultivars of A. cepa demonstrated varying degrees of attractiveness to thrips in the subsequent years. The relationship between populations of T. tabaci, F. intonsa and A. intermedius changed in the subsequent months of the growing season. In June, mainly T. tabaci and F. intonsa occurred on onion plants, while from July, the percentage shares of F. intonsa and the predatory A. intermedius in the thrips population on many onion cultivars increased. The level of attractiveness of A. cepa related to onion thrips, which is reported as a main pest of onion, varies depending on the year and cultivar.

中文翻译：

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蓟马（Thysanoptera）与洋葱（Allium cepa L.）和威尔士洋葱（Allium fistulosum L.）相关

我们确定了波兰南部三个植被季节（2014-2016）内一个威尔士洋葱（Fistulosum）和八个洋葱（cepa）的蓟马的丰度，种类组成，性别比和季节性动态。在cepa和A. fistulosum上鉴定了9种y翅目。无论洋葱品种如何，烟粉虱是主要物种（占采集的蓟马标本的64.4％），而富兰克氏菌也有大量发生（28.3％）。相反，威尔士洋葱最常被扁豆（F. intonsa）栖息（62.7％），尽管烟粉虱（T. tabaci）也很多（28.3％）。掠夺性中间拟杆菌（Aeolothrips intermedius）占洋葱头孢菌（A. cepa）的4.5％和瘘管菌（A. fistulosum）的2.9％。在数量最多的物种中，烟粉虱，棉铃虫和中间曲霉种群主要由雌性组成。蓟马最易定殖的品种是瘘管农杆菌（A. fistulosum）。在随后的几年中，测试的洋葱曲霉品种对蓟马表现出不同程度的吸引力。在生长季节的随后几个月中，烟粉虱，棉铃虫和中间曲霉种群之间的关系发生了变化。在6月，主要T.粉虱和˚F。intonsa发生在洋葱植物上，而从7月开始，许多洋葱品种的蓟马种群中F. intonsa和捕食性中间曲霉的百分比增加。吸引力的水平圆葱与葱蓟马，该报告为洋葱的主要害虫，取决于年份和品种。