Potential for Use of Erythritol as a Socially Transferrable Ingested Insecticide for Ants (Hymenoptera: Formicidae)
Potential for Use of Erythritol as a Socially Transferrable Ingested Insecticide for Ants (Hymenoptera: Formicidae)
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DOI：
10.1093/jee/toaa019
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发表时间：
2020-06-01
影响因子：
2.2
通讯作者：
Marenda, Daniel R.
中科院分区：
文献类型：
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作者：
Barrett, Meghan;Caponera, Virginia;Marenda, Daniel R.
蚂蚁是重要的结构和农业害虫，因此需要人类安全和有效的杀虫剂来控制蚂蚁。赤藓糖醇是许多商业食品中使用的一种糖醇，它降低了包括果蝇、白蚁和蚊子在内的各种昆虫分类群的存活率。赤藓糖醇也会减少红色进口火蚁的寿命；然而，它对其他蚂蚁物种的影响以及它在有毒剂量下转移到幼稚蚁群成员的能力还没有被探索过。在这里，我们发现赤藓糖醇以一种浓度依赖的方式降低了Santschi的存活率。接触即席水减少了赤藓糖醇的毒性作用，但工人死亡率仍高于使用即兴水的对照组。觅食移民蚊虫的工作人员将致死水平的赤藓糖醇转移到没有直接摄入赤藓糖醇的巢中。冰盖蚁(膜翅目：蚁科)、肩峰蚁(膜翅目：蚁科)和嗜铬蚁(膜翅目：蚁科)的死亡模式相似。这些发现表明，赤藓糖醇可能是一种对几个蚂蚁属的高效杀虫剂。赤藓糖醇在社会性昆虫控制中的潜在有效性因其在蚂蚁群体中通过工蚁之间的社会转移(滋养)以致死水平传播而得到增强。
Ants are significant structural and agricultural pests, generating a need for human-safe and effective insecticides for ant control. Erythritol, a sugar alcohol used in many commercial food products, reduces survival in diverse insect taxa including fruit flies, termites, and mosquitos. Erythritol also decreases longevity in red imported fire ants; however, its effects on other ant species and its ability to be transferred to naive colony members at toxic doses have not been explored. Here, we show that erythritol decreases survival in Tetramorium immigrans Santschi (Hymenoptera: Formicidae) in a concentration-dependent manner. Access to ad-libitum water reduced the toxic effects of erythritol, but worker mortality was still increased over controls with ad-lib water. Foraging T. immigrans workers transferred erythritol at lethal levels to nest mates that had not directly ingested erythritol. Similar patterns of mortality following erythritol ingestion were observed in Formica glacialis Wheeler (Hymenoptera: Formicidae), Camponotus subarbatus Emery (Hymenoptera: Formicidae), and Camponotus chromaiodes Bolton (Hymenoptera: Formicidae). These findings suggest that erythritol may be a highly effective insecticide for several genera of ants. Erythritol's potential effectiveness in social insect control is augmented by its spread at lethal levels through ant colonies via social transfer (trophallaxis) between workers.