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首页> 外文期刊>Journal of pesticide science >Comparison of ecological risks of insecticides for nursery-box application using species sensitivity distribution
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Comparison of ecological risks of insecticides for nursery-box application using species sensitivity distribution

机译：利用物种敏感性分布比较育苗箱施用杀虫剂的生态风险

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The ecological risks to aquatic organisms posed by insecticide use were compared using species sensitivity distribution (SSD) to determine if nursery-box application is ecologically safer than surface-water application. The targeted insecticides were imi-dacloprid and frpronil for nursery-box application and fenitrothion as a reference for surface-water application. Ecological risks were quantified as the potentially affected fraction (PAF) of species calculated using SSD and the pesticide concentration in river and paddy water. The PAF value was the highest for fenitrothion in both river and paddy water, indicating that substituting nursery-box for surface-water application reduces the ecological risk. The validity of our SSD approach for risk quantification was confirmed with comparisons in mesocosm studies. The comparisons suggest that the PAF values successfully correspond to the magnitude of the pesticide effect on ecosystems. The actual ecosystem appeared to have strong recovery potential, even when more than 50% of the species were affected.
机译：使用物种敏感性分布（SSD）比较了使用杀虫剂对水生生物造成的生态风险，以确定苗圃箱的施用是否比地表水施用在生态上更安全。杀虫剂的目标杀虫剂为咪唑吡虫啉和氟虫腈，用于育苗箱，而杀nitro硫磷作为地表水的参考。生态风险被量化为使用SSD和河流和稻田水中农药浓度计算出的物种的潜在影响分数（PAF）。在河水和稻田水中，杀nitro硫磷的PAF值最高，表明用苗圃箱代替地表水可降低生态风险。我们的SSD方法用于风险量化的有效性通过中观研究的比较得到了证实。比较表明，PAF值成功地对应于农药对生态系统的影响程度。即使超过50％的物种受到影响，实际的生态系统似乎也具有很强的恢复潜力。

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