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首页> 外文期刊>California Fish and Game >THE IMPACT OF THE HERBICIDES IMAZAPYR AND TRICLOPYR TRIETHYLAMINE ON BULLFROG TADPOLES
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THE IMPACT OF THE HERBICIDES IMAZAPYR AND TRICLOPYR TRIETHYLAMINE ON BULLFROG TADPOLES

机译：除草剂咪唑和三氯三乙胺对BullFrog辣椒的影响

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摘要

The imazapyr-based herbicides Stalker (R) and Habitat (R) and the triclopy r-based herbicide Garlon (R) 3A are commonly used to control invasive, exotic plants in wildland settings where non-target amphibian species may be present. Of particular concern is the federally-threatened California red-legged frog, Rana aurora draytonii, (CRLF). In order to assess the toxicity risk to amphibians, acute toxicity tests were conducted with the herbicide formulations and their active ingredients, using bullfrog, Rana catesbeiana, tadpoles. All of the herbicides, with the exception of Stalker (R), were found to be within the U.S. EPA's "practically non-toxic" category for acute lethality to aquatic organisms. Stalker (R) was found to be in the 'slightly toxic' range. The calculated toxicity values were then compared to herbicide environmental concentrations using the risk quotient (RQ) method. RQ values for all the herbicides were below the U.S. EPA's level of concern for listed aquatic species.
机译：基于imazapyr的除草剂Stalker（R）和Habitat（R）和基于三氯吡基的除草剂Garlon（R）3A通常用于控制可能存在非目标两栖类物种的野外环境中的外来入侵植物。特别令人担忧的是受到联邦威胁的加利福尼亚红脚蛙Rana aurora draytonii（CRLF）。为了评估对两栖动物的毒性风险，使用牛蛙，Rana catesbeiana和t对除草剂配方及其有效成分进行了急性毒性测试。除Stalker（R）外，所有除草剂均被发现属于美国EPA的“对水生生物急性致死性”的“实际上无毒”类别。 Stalker（R）被发现处于“轻微毒性”范围内。然后使用风险商（RQ）方法将计算出的毒性值与除草剂环境浓度进行比较。所有除草剂的RQ值均低于美国EPA对所列水生物种的关注水平。

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