Indirect contamination of cockroaches by anticoagulant rodenticides

IF 15 2区环境科学与生态学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Environmental Chemistry Letters Pub Date : 2025-01-25 DOI:10.1007/s10311-025-01821-y

Julia Regnery, Birgit Snelinski, Julia Bachtin, Christel Möhlenkamp, Erik Schmolz, Anton Friesen

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引用次数: 0

Abstract

The wide use of anticoagulant rodenticides for rat control has led to indirect poisoning of non-target birds, mammals, and vertebrates by anticoagulant rodenticides, yet contamination of insects is poorly known. We studied the behavior of two cockroach species feeding on commercial rodenticide bait formulations under laboratory conditions. Rodenticides comprised brodifacoum, difenacoum, and bromadiolone. We measured bait uptake by cockroaches, mortality, and their anticoagulant rodenticide body burden after 21 days of exposure. Results show that rodenticide residue levels in cockroaches ranged between 0.01 and 1.32 ± 0.15 µg/g dry weight. No mortality associated with rodenticide bait consumption was observed over a 21 days exposure period. Cockroaches consumed up to 50% of offered bait when attracted by this formulation, otherwise close to none. Overall, insects such as cockroaches may contribute to the environmental spread of anticoagulant rodenticides.

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抗凝血灭鼠剂对蟑螂的间接污染

抗凝血灭鼠剂广泛用于鼠类控制，导致非目标鸟类、哺乳动物和脊椎动物被抗凝血灭鼠剂间接中毒，但对昆虫的污染知之甚少。在实验室条件下，研究了两种蟑螂对商业灭鼠剂饵料的摄食行为。灭鼠剂包括溴灭菌、异灭菌和溴代隆。我们测量了暴露21天后蟑螂对饵料的摄取、死亡率和抗凝血灭鼠剂的体负荷。结果表明，蟑螂体内杀鼠剂残留量在0.01 ~ 1.32±0.15µg/g干重之间。在21天的暴露期内，未观察到与食用灭鼠诱饵有关的死亡率。当被这种配方吸引时，蟑螂消耗了高达50%的诱饵，否则几乎没有。总的来说，蟑螂等昆虫可能有助于抗凝血灭鼠剂的环境传播。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Chemistry Letters 环境科学-工程：环境

CiteScore

32.00

自引率

7.00%

发文量

175

审稿时长

2 months

期刊介绍： Environmental Chemistry Letters explores the intersections of geology, chemistry, physics, and biology. Published articles are of paramount importance to the examination of both natural and engineered environments. The journal features original and review articles of exceptional significance, encompassing topics such as the characterization of natural and impacted environments, the behavior, prevention, treatment, and control of mineral, organic, and radioactive pollutants. It also delves into interfacial studies involving diverse media like soil, sediment, water, air, organisms, and food. Additionally, the journal covers green chemistry, environmentally friendly synthetic pathways, alternative fuels, ecotoxicology, risk assessment, environmental processes and modeling, environmental technologies, remediation and control, and environmental analytical chemistry using biomolecular tools and tracers.