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斑衣蜡蝉对用于寻找配偶和产卵的天然信息素诱饵有反应。

Spotted Lanternflies Respond to Natural Pheromone Lures for Mate-Finding and Oviposition.

作者信息

Cooperband Miriam F, Murman Kelly M

机构信息

Forest Pest Methods Laboratory, USDA-APHIS-PPQ, 1398 W. Truck Rd., Buzzards Bay, MA 02542, USA.

出版信息

Insects. 2024 Jun 13;15(6):447. doi: 10.3390/insects15060447.

Abstract

Using semiochemicals collected from spotted lanternflies (Hemiptera: Fulgoridae) (SLF) and deployed in the field with circle traps, we demonstrated that SLF responded to SLF pheromones: in particular, this was the case for males while seeking mates and for females while ovipositing. The attractants consisted of SLF body extract emitted from diffuser lures and SLF honeydew on burlap ribbons, collected from heavily infested locations. Traps with attractants were deployed in field sites with very light SLF infestations to avoid competing signals of pre-existing aggregations. The number of SLF equivalents emitted by each diffuser per trapping period was used in a dose-response analysis. Three trees per block received either (1) a control hexane lure and a clean ribbon, (2) a lure containing SLF extract and a clean ribbon, or (3) a lure containing SLF extract and a honeydew-laden ribbon. Ten blocks were sampled three times per week for twelve weeks. We found a significant positive dose-response by males to SLF body extract only in the presence of SLF honeydew, indicating a synergistic effect between honeydew volatiles and body volatiles. This dose-response occurred for five weeks after mating started, after which males no longer responded. Subsequently, females had a significant positive dose-response to SLF extract only in the presence of honeydew when oviposition was their primary activity, continuing for two weeks, suggesting that females may use pheromones to aggregate for oviposition. The extract in the absence of honeydew did not result in a positive dose-response, nor did the hexane control. These findings suggest that SLF respond synergistically to the combination of pheromones present in both SLF honeydew and SLF bodies. Thus, combining key components from both sources may aid the development of semiochemical lures for SLF.

摘要

我们收集了来自斑衣蜡蝉(半翅目:蜡蝉科)的化学信号物质,并将其与环形诱捕器一起部署在田间,结果表明斑衣蜡蝉对自身信息素会产生反应:具体而言,雄性在寻找配偶时以及雌性在产卵时会出现这种情况。引诱剂包括从扩散诱芯释放出的斑衣蜡蝉身体提取物以及从虫害严重地区收集的粗麻布带上的斑衣蜡蝉蜜露。装有引诱剂的诱捕器被部署在斑衣蜡蝉虫害非常轻微的田间地点,以避免已有聚集群体的竞争信号。每个诱捕期每个扩散诱芯释放的斑衣蜡蝉等效物数量用于剂量反应分析。每个区组的三棵树分别接受以下处理:(1)一个对照己烷诱芯和一条干净的带子,(2)一个含有斑衣蜡蝉提取物的诱芯和一条干净的带子,或者(3)一个含有斑衣蜡蝉提取物的诱芯和一条带有蜜露的带子。十个区组每周采样三次,共持续十二周。我们发现,仅在有斑衣蜡蝉蜜露存在时,雄性对斑衣蜡蝉身体提取物有显著的正剂量反应,这表明蜜露挥发物和身体挥发物之间存在协同效应。这种剂量反应在交配开始后的五周内出现,之后雄性不再有反应。随后,当产卵是主要活动时,仅在有蜜露存在的情况下,雌性对斑衣蜡蝉提取物有显著的正剂量反应,持续两周,这表明雌性可能利用信息素来聚集产卵。没有蜜露时的提取物以及己烷对照均未产生正剂量反应。这些发现表明,斑衣蜡蝉对斑衣蜡蝉蜜露和斑衣蜡蝉身体中存在的信息素组合具有协同反应。因此,将来自这两种来源的关键成分结合起来可能有助于开发斑衣蜡蝉的化学信号引诱剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fc13/11203839/d4258541790f/insects-15-00447-g001.jpg

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