| 李叶, 宋维虎, 李鸿雁, 刘长仲*.两种药剂亚致死浓度对麦长管蚜实验种群参数的影响[J].植物保护,2021,47(2):122-127. |
| 两种药剂亚致死浓度对麦长管蚜实验种群参数的影响 |
| Effects of sublethal concentrations of two pesticides on the population density of Sitobion miscanthi |
| 投稿时间：2019-12-02 修订日期：2020-02-04 |
| DOI：10.16688/j.zwbh.2019668 |
| 中文关键词: 阿维·吡虫啉 氯氟·吡虫啉 麦长管蚜 生命表 亚致死 |
| 英文关键词:abamectin·imidacloprid beta-cypermethrin·imidacloprid Sitobion miscanthi life table sublethal |
| 基金项目:国家重点研发计划（2018YFD0200405） |
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| 中文摘要: |
| 为明确阿维·吡虫啉和氯氟·吡虫啉两种复配制剂对麦长管蚜Sitobion miscanthi种群数量动态的影响, 采用生命表技术分别研究了两种药剂亚致死浓度LC10、LC30对麦长管蚜F0代和F1代生长发育及种群参数的影响。结果表明, 阿维·吡虫啉和氯氟·吡虫啉LC10、LC30处理后, 与对照相比, 麦长管蚜F0代成蚜寿命和单头产蚜量显著下降(P<0.05), 其中氯氟·吡虫啉LC30处理成蚜寿命和繁殖力最低(7.98 d, 12.58头); 阿维·吡虫啉LC10、LC30, 氯氟·吡虫啉LC10、LC30处理, F1代成蚜寿命分别缩短4.85、8.47、6.03、9.28 d, 单头产蚜量分别减少35.85%、55.47%、40.04%、59.52%, 均显著低于对照(P<0.05); F1代存活率从第12天开始下降, 下降速度明显快于对照; 各处理亚致死浓度使F1代发育历期、种群加倍时间(Dt)延长, 内禀增长率(rm)、净增殖率(R0)、平均世代周期(T)、周限增长率(λ)、总生殖率(GRR)均降低。表明亚致死浓度的阿维·吡虫啉和氯氟·吡虫啉能够显著抑制麦长管蚜种群增殖。 |
| 英文摘要: |
| In order to evaluate the effects of sublethal concentrations of abamectin·imidacloprid and beta-cypermethrin·imidacloprid on the population density of Sitobion miscanthi, life-table analyses of the growth, development and population density of S.miscanthi F0 and F1 generations were conducted. The results showed that the fecundity and average lifespan of S.miscanthi F0 generation were significantly (P<0.05) lower than the control. The lowest average lifespan (7.98 d) and fecundity (12.58 heads) were observed in the beta-cypermethrin·imidacloprid (LC30) treatments. The LC10 and LC30 treatments with abamectin·imidacloprid and beta-cypermethrin·imidacloprid shortened the average lifespan of F1 generation by 4.85 d, 8.47 d, 6.03 d, and 9.28 d, respectively. The fecundity was also reduced by 35.85%, 55.47%, 40.04%, and 59.52%, significantly (P<0.05) lower than the control. The survival rate of F1 generation decreased from the 12th day. Moreover, the sublethal concentration effect of each treatment increased the developmental duration, population doubling time (Dt), but innate rate of increase (rm), net reproductive rate (R0), average generation time (T), the finite rate of increase of the F1 generation, and gross reproduction rate (GRR) were reduced. These results indicated that the sublethal concentrations of abamectin·imidacloprid and beta-cypermethrin·imidacloprid could significantly inhibit the population density of S.miscanthi. |
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