Jordan Anna, Broad Gavin R, Stigenberg Julia, Hughes Jessica, Stone Jake, Bedford Ian, Penfield Steven, Wells Rachel
John Innes Centre Norwich Research Park Colney Lane Norwich Norfolk NR4 7UH UK.
Natural History Museum London UK.
Entomol Exp Appl. 2020 May;168(5):360-370. doi: 10.1111/eea.12910. Epub 2020 May 15.
The cabbage stem flea beetle (CSFB), L. (Coleoptera: Chrysomelidae), is a major pest of oilseed rape, L. (Brassicaceae), within the UK and continental Europe. Following the withdrawal of many broad-spectrum pesticides, most importantly neonicotinoids, and with increased incidence of pyrethroid resistance, few chemical control options remain, resulting in the need for alternative pest management strategies. We identified the parasitoid wasp (Haeselbarth) (Hymenoptera: Braconidae) within CSFB collected from three independent sites in Norfolk, UK. Parasitism of adult CSFB was confirmed, and wasp oviposition behaviour was described. Moreover, we show that within captive colonies parasitism rates are sufficient to generate significant biological control of CSFB populations. A sequence of the mitochondrial cytochrome oxidase 1 () gene was generated for rapid future identification. Moroccan specimens of (Loan), possessing 90% sequence similarity, were the closest identified sequenced species. This study represents the first description published in English of this parasitoid of the adult cabbage stem flea beetle.
甘蓝茎跳甲（Psylliodes chrysocephala L.，鞘翅目：叶甲科）是英国和欧洲大陆油菜（Brassica napus L.，十字花科）的主要害虫。随着许多广谱杀虫剂的停用，最重要的是新烟碱类杀虫剂，以及拟除虫菊酯抗性的增加，化学防治选择很少，因此需要替代害虫管理策略。我们在从英国诺福克三个独立地点采集的甘蓝茎跳甲中鉴定出寄生蜂Microctonus aethiopoides (Haeselbarth)（膜翅目：茧蜂科）。证实了其对成年甘蓝茎跳甲的寄生情况，并描述了寄生蜂的产卵行为。此外，我们表明在圈养群体中，寄生率足以对甘蓝茎跳甲种群产生显著的生物防治效果。生成了线粒体细胞色素氧化酶1（COI）基因序列，以便未来快速鉴定。与摩洛哥的Microctonus loan标本具有90%的序列相似性，是已鉴定的最接近的测序物种。本研究是英文发表的关于成年甘蓝茎跳甲这种寄生蜂的首次描述。
