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首页> 外文期刊>Environmental toxicology and chemistry >Thiamethoxam honey bee colony feeding study: Linking effects at the level of the individual to those at the colony level
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Thiamethoxam honey bee colony feeding study: Linking effects at the level of the individual to those at the colony level

机译：噻虫嗪蜂蜜蜂群饲养研究：个体水平与蜂群水平的联系效应

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Neonicotinoid insecticides have been used globally on a wide range of crops through seed treatment as well as soil and foliar applications and have been increasingly studied in relation to the potential risk to bees because of their detection in pollen and nectar of bee-attractive crops. The present article reports the results of laboratory studies (10-d adult and 22-d larval toxicity studies assessing the chronic toxicity of thiamethoxam to adult honey bees and larvae, respectively) and a colony feeding study, with 6 wk of exposure in an area with limited alternative forage, to provide a prewintering colony-level endpoint. The endpoints following exposure of individuals in the laboratory (10-d adult chronic no-observed-effect concentration [NOEC] for mortality 117g thiamethoxam/kg sucrose solution, 141g thiamethoxam/L sucrose solution; 22-d larval chronic NOEC 102g thiamethoxam/kg diet) are compared with those generated at the colony level, which incorporates sublethal effects (no-observed-adverse-effect concentration [NOAEC] 50g thiamethoxam/L sucrose solution, 43g thiamethoxam/kg sucrose solution). The data for sucrose-fed honey bee colonies support the lack of effects identified in previous colony-level field studies with thiamethoxam. However, unlike these field studies demonstrating no effects, colony feeding study data also provide a threshold level of exposure likely to result in adverse effects on the colony in the absence of alternative forage, and a basis by which to evaluate the potential risk of thiamethoxam residues detected in pollen, nectar, or water following treatment of bee-attractive crops. Environ Toxicol Chem 2018;37:816-828. (c) 2017 SETAC
机译：新烟碱类杀虫剂已通过种子处理以及土壤和叶面施用在全球范围内广泛用于农作物，由于对蜜蜂具有吸引力的农作物的花粉和花蜜中有检出物，因此对蜂的潜在风险进行了越来越多的研究。本文报道了实验室研究的结果（10天成虫和22天幼虫毒性研究分别评估了噻虫嗪对成年蜜蜂和幼虫的慢性毒性）和集落喂养研究，该研究在一个区域进行了6周暴露有限的替代草料，以提供一个越冬的菌落水平终点。实验室中个体暴露后的终点（死亡率为117g噻虫嗪/ kg蔗糖溶液，141g噻虫嗪/ L蔗糖溶液； 10天成年幼虫慢性NOEC 102g噻虫嗪/ kg）饮食）与在菌落水平上产生的，具有亚致死作用（未观察到的不良作用浓度[NOAEC] 50克噻虫嗪/ L蔗糖溶液，43g噻虫嗪/ kg蔗糖溶液）进行比较。蔗糖喂养的蜜蜂菌落的数据支持了先前在噻虫草胺的菌落水平实地研究中未发现的影响。但是，与这些未证明没有效果的田间研究不同，菌落喂养研究数据还提供了暴露阈值水平，可能在没有替代饲料的情况下对菌落产生不利影响，并以此为依据评估噻虫嗪残留的潜在风险在处理对蜜蜂具有吸引力的农作物后，可在花粉，花蜜或水中检测到。 Environ Toxicol Chem 2018; 37：816-828。 （c）2017年SETAC

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