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首页> 外文期刊>Journal of Economic Entomology >Analysis of the Time-Concentration-Mortality Response of Nilaparvata lugens (Hemiptera: Delphacidae) to Paichongding
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Analysis of the Time-Concentration-Mortality Response of Nilaparvata lugens (Hemiptera: Delphacidae) to Paichongding

机译：褐飞虱对Pahonghongding的时间-浓度-死亡率响应的分析

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摘要

Paichongding is an adicyclicnitromethylene neonicotinoid insecticide with a cis-configuration. Bioassay of paichongding was conducted against Nilaparvata lugens Stal under a laboratory condition. Mortality of N. lugens was analyzed by time-concentration-mortality (TCM) regressions based on the complementary log-log (CLL) model. The conditional mortalities of test individuals increased with the exposure time after treatments with different concentrations, showing that the speed of insecticidal action is concentration dependent. Meanwhile, the conditional mortalities of N. lugens increased as the concentrations of paichongding increased for all developmental stages from instars I-II to macropterous females. Correspondingly, LC50 and LC90 values to N. lugens gradually decreased with the developmental stages, in which instars I-II were the most sensitive to paichongding, with LC50 values of 6.31, 0.45, 0.09, and 0.03 mg/liter for 24, 48, 72, and 96 h after treatments, respectively, while macropterous females were the least sensitive among all developmental stages, with LC50 values of 309.03, 11.48, 1.35, and 0.19 mg/liter at 24, 48, 72, and 96 h after the treatments, respectively. The time-concentration-mortality modeling was mathematically and biologically robust to evaluate the effects of paichongding on N. lugens. The results suggest that paichongding would be an effective alternative pesticide for controlling N. lugens considering its potent effects.
机译：Paichongding是一种具有顺式构型的二环硝基亚甲基新烟碱类杀虫剂。在实验室条件下对褐飞虱进行了生物冲顶的生物测定。通过基于互补对数-对数（CLL）模型的时间浓度-死亡率（TCM）回归分析了猪笼草的死亡率。在不同浓度的处理后，受试个体的条件死亡率随暴露时间的增加而增加，这表明杀虫作用的速度与浓度有关。同时，从幼虫I-II到大翅雌鱼的所有发育阶段，随着紫草顶浓度的增加，黄褐猪笼草的条件死亡率增加。相应地，随着发育阶段，对褐毛猪笼草的LC50和LC90值逐渐降低，其中幼龄I-II对派草定最敏感，24、48、48，治疗后分别为72小时和96小时，而大型发育期雌性最不敏感，治疗后24、48、72和96小时的LC50值为309.03、11.48、1.35和0.19 mg / L。 ， 分别。时间-浓度-死亡率模型在数学和生物学上均很健壮，可以评估paichongding对猪笼草的影响。结果表明，考虑到它的强效作用，派草定定将是控制猪笼草的有效替代农药。

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