| 噻虫嗪种衣剂对草地贪夜蛾生命参数的影响 |
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| 引用本文： | 巴吐西,张智,寇爽,李祥瑞,张爱环,张云慧.噻虫嗪种衣剂对草地贪夜蛾生命参数的影响[J].植物保护学报,2020,47(4):891-899. |
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| 作者姓名： | 巴吐西 张智 寇爽 李祥瑞 张爱环 张云慧 |
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| 作者单位： | 北京农学院生物与资源环境学院, 农业农村部华北都市农业重点实验室, 北京 102206;中国农业科学院植物保护研究所, 植物病虫害生物学国家重点实验室, 北京 100193;北京市植物保护站, 北京 100029;北京市通州区植物保护站, 北京 101100 |
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| 基金项目： | 国家重点研发计划（2019YFD0300102），国家现代农业（小麦）产业技术体系（CARS-03），中国农业科学院重大任务联合攻关（CAAS-ZDRW202007） |
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| 摘 要： | 为明确噻虫嗪种衣剂对草地贪夜蛾Spodoptera frugiperda生长发育和繁殖能力的影响,通过室内种群生命表方法分析不同浓度0.5、1、2、4 mL/kg噻虫嗪处理下草地贪夜蛾种群的生命参数。结果表明:草地贪夜蛾幼虫历期和世代周期随着噻虫嗪浓度的增加而延长,1 mL/kg浓度处理下雄成虫寿命为15.40 d,平均单雌产卵量为888.04粒,均显著高于对照和其它浓度处理,而雌成虫产卵前期为3.88 d,显著短于对照和其它浓度处理。噻虫嗪浓度对草地贪夜蛾蛹期和雌成虫寿命无显著影响,但对蛹重有一定影响,0.5、1 mL/kg浓度处理的蛹重与对照无显著差异,2、4 mL/kg浓度处理的蛹重随浓度增加而显著降低;幼虫存活率、化蛹率和羽化率随着噻虫嗪浓度的增加而降低。0.5、1 mL/kg浓度处理后雌成虫繁殖力和最高繁殖值较对照偏高,2、4 mL/kg浓度处理则相反。0.5、1 mL/kg浓度处理的草地贪夜蛾平均世代周期、净增殖率、内禀增长率、周限增长率均与对照无显著差异;2、4 mL/kg浓度处理的平均世代周期随着噻虫嗪浓度的增加而显著增加,净增殖率、内禀增长率、周限增长率则随着浓度的增加而显著下降。表明噻虫嗪种衣剂处理在较高浓度时对当代草地贪夜蛾种群有一定的抑制作用,随着药剂在植株体内的降解,这种抑制作用逐渐降低,低浓度处理对成虫生殖能力具有一定的促进作用。
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| 关 键 词： | 草地贪夜蛾 噻虫嗪 种衣剂 抗药性 |
| 收稿时间： | 2020/4/6 0:00:00 |
Impacts of seed coating of thiamethoxam on life parameters of fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae) |
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| Batuxi,ZHANG Zhi,KOU Shuang,LI Xiangrui,ZHANG Aihuan,ZHANG Yunhui.Impacts of seed coating of thiamethoxam on life parameters of fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae)[J].Acta Phytophylacica Sinica,2020,47(4):891-899. |
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| Authors: | Batuxi ZHANG Zhi KOU Shuang LI Xiangrui ZHANG Aihuan ZHANG Yunhui |
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| Institution: | Key Laboratory of Urban Agriculture(North China), Ministry of Agriculture and Rural Affairs;College of Bioscience, Resources and Environment, Beijing University of Agriculture, Beijing 102206, China;State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China;Beijing Plant Protection Station, Beijing 100029, China;Tongzhou District Plant Protection Station of Beijing, Beijing 101100, China |
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| Abstract: | In order to clarify the effect of thiamethoxam on the growth, development and reproduction ability of fall armyworm Spodoptera frugiperda, the indoor population life table method was used to analyze the life parameters of S. frugiperda under different concentrations (0.5, 1, 2 and 4 mL/kg) of thiamethoxam. The results showed that the life span of male (15.40 d) and the average number of single female eggs (888.04) in 1 mL/kg treatment were significantly higher than those in the control and other treatments, and the number of days before spawning (3.88 d) was significantly lower than those in the control and other treatments. Thiamethoxam concentration had no significant effects on the pupal stage and female lifespan of S. frugiperda, but imposed a certain effect on the pupal weight. There was no significant difference between the pupal weights under 0.5 mL/kg and 1 mL/kg treatments and the control, but the pupal weights under 2 mL/kg and 4 mL/kg treatments decreased significantly as the concentration increased. The survival rate, pupation rate and emergence rate of larvae decreased with increasing concentration of thiamethoxam. The fecundity and maximum reproduction value of females after 0.5 mL/kg and 1 mL/kg treatments were higher than those of the control, while the 2 mL/kg and 4 mL/kg treatments were the opposite. The average generation periods under 2 mL/kg and 4 mL/kg concentration treatments increased significantly with increasing concentration of thiamethoxam, and the net reproduction rate, intrinsic growth rate, and weekly growth rate decreased significantly with the increase of concentration. The results indicated that the seed coating agent thiamethoxam had a certain inhibitory effect on the F0 generation of S. frugiperda population. With the degradation of the agent in the plant, the inhibitory effect gradually decreased. The 0.5 mL/kg and 1 mL/kg treatments had an effect on adult reproduction. |
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| Keywords: | Spodoptera frugiperda thiamethoxam seed coating agent pestcide resistance |
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