|
| 亚致死浓度氟啶虫胺腈对柑橘全爪螨的发育和繁殖的影响 |
| Effects of sublethal concentrations of sulfoxaflor on the development and reproduction of Panonychus citri McGregor (Acari: Tetranychidae) |
| |
| DOI： |
| 中文关键词: 氟啶虫胺腈 柑橘全爪螨 年龄-阶段两性生命表 生长发育 繁殖 |
| 英文关键词:Sulfoxaflor Panonychus citri age-stage two-sex life table fecundity growth and development |
| 基金项目:江西省自然科学基金（20224BAB205015）；农业农村部重点项目(13220141)；江西省重点研发计划（20212BBF63042，20203BBF63041） |
|
| Hits: 13 |
| Download times: 4 |
| 中文摘要: |
| 本研究旨在探讨亚致死浓度氟啶虫胺腈对F0（当代）及F1（第1代）代柑橘全爪螨Panonychus citri （McGregor）生长发育和繁殖的影响，为柑橘全爪螨的综合防治及氟啶虫胺腈的合理应用提供科学指导。本试验采用叶片浸渍法，观察了亚致死浓度（LC5和LC10）氟啶虫胺腈和对照处理条件下F0代柑橘全爪螨存活、繁殖情况和F1代柑橘全爪螨的个体发育历期、寿命、存活和繁殖情况，组建F1年龄-阶段两性生命表。结果显示，亚致死浓度（LC5和LC10）氟啶虫胺腈处理后，F0代柑橘全爪螨的产卵历期由4.52 d缩短至3.67 d，产卵量由17.98粒减少至14.00粒，以上指标均差异显著。亚致死浓度氟啶虫胺腈对柑橘全爪螨的影响存在跨代效应，对F1代柑橘全爪螨的生长发育、繁殖和种群生命表参数均产生影响。在生长发育方面，亚致死浓度氟啶虫胺腈缩短F1代柑橘全爪螨未成熟发育历期，雄螨从10.09 d缩短至9.50 d，雌螨从10.21 d缩短至9.56 d，显著地加快发育速率；在繁殖力方面，亚致死浓度氟啶虫胺腈缩短F1代柑橘全爪螨雌成螨的总产卵前期（TPOP），繁殖期从6.62 d延长至7.79 d，繁殖量从28.48粒增加至35.31粒；从种群生命表参数来看，亚致死浓度氟啶虫胺腈处理后F1代柑橘全爪螨的净增殖率R0由18.51增加至26.06，内禀增值率r由0.2128增加至0.2430，周限增长率λ由1.237增加至1.275，总繁殖率GRR由34.37增加至44.25，而种群加倍时间t缩短了0.405。综上，低浓度的氟啶虫胺腈显著抑制F0代柑橘全爪螨雌成螨的繁殖，但对F1代柑橘全爪螨的生长发育和繁殖起刺激作用，并影响其种群生命表参数，可能会刺激害螨种群的的再猖獗。 |
| 英文摘要: |
| In this study, the effects of sublethal concentrations of sulfoxaflor on the growth, development and reproduction of F0 ( contemporary ) and F1 ( first generation ) Panonychus citri were determined, which provided a scientific basis for the effective control of P. citri and the rational application of sulfoxaflor. In this study, the survival and reproduction of F0 generation of P. citri and the individual development period, life span, survival and reproduction of F1 generation of P. citri were observed by leaf-dipping method, and the age-stage, two-sex life table was conducted. The results indicated that after the female adults of P. citri were fed with the citrus leaves exposed to different concentrations of sulfoxaflor, the oviposition duration were significantly decreased from 4.52 d to 3.67 d, and the number of eggs laid per female were decreased from 17.98 to 14.00. The effect of sublethal concentration of sulfoxaflor on P. citri had a transgenerational effect, which affects the growth and development, reproduction and population life table parameters of the F1 generation. In terms of growth and development, the pre-adult period was significantly reduced. The male mites were reduced from 10.09 d to 9.50 d, and the female mites were reduced from 10.21 d to 9.56 d, while the development rates were accelerated significantly. In terms of fecundity of adult females, compared with the control, the total pre-oviposition period (TPOP) of F1 generation of P. citri treated with the sublethal concentrations (LC5 and LC10) of sulfoxaflor were shortened; The oviposition of F1 generation was prolonged from 6.62 d to 7.79 d, and the fecundity of F1 generation was increased from 28.48 to 35.31. From the population life table parameters, the net reproductive rate of the F1 generation of P. citri after treatments with sublethal concentrations of sulfoxaflor was increased from 18.51 to 26.06, the intrinsic rate of increase was increased from 0.2128 to 0.2430, the finite rate of increase was increased from 1.237 to 1.275, the gross reproduction rate was increased from 34.37 to 44.25, and the population doubling time was shortened by 0.405. In summary, exposure of P. citri to sublethal concentrations of sulfoxaflor resulted in negative effects on F0 generation. However, the sublethal concentrations of sulfoxaflor had positive effects on F1 generation, including stimulating the growth, development and reproduction, and affecting the life table parameters of populations. These results could lead to a later increase of population, as a pesticide-induced ‘secondary pest outbreak’. |
| View Full Text View/Add Comment Download reader |
| Close |
|
|
|
About Journal