| 李文婷，杨韵，刘明秀，王燕，张红梅，李向永，刘莹，尹艳琼，赵雪晴，谌爱东，陈福寿,2026,基于年龄-阶段两性生命表的大红犀猎蝽对草地贪夜蛾的非消耗性效应分析[J].环境昆虫学报,(2):531-540 |
| 基于年龄-阶段两性生命表的大红犀猎蝽对草地贪夜蛾的非消耗性效应分析 |
| Non-consumptive effects of the predatory Sycanus falleni (Hemiptera: Reduviidae) on Spodoptera frugiperda (Lepidoptera: Noctuidae) based on age-stage two-sex life table |
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| DOI： |
| 中文关键词: 草地贪夜蛾 大红犀猎蝽 非消耗性胁迫 年龄-阶段两性生命表 |
| 英文关键词:Spodoptera frugiperda Sycanus falleni non-consumptive effects age-stage two-sex life table |
| 基金项目:云南省基础研究专项（202201AS070067）；云南省农业联合专项（202301BD070001-045）；云南省农业联合专项（202301BD070001-056） |
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| 中文摘要: |
| 捕食者所引发的非消耗性效应在害虫管理中具有重要应用潜力，大红犀猎蝽Sycanus falleni是一种重要的捕食性天敌昆虫，具有生物防治价值。【目的】为了明确大红犀猎蝽对重大入侵害虫草地贪夜蛾Spodoptera frugiperda的潜在防控潜能。【方法】本研究在室内进行了大红犀猎蝽对草地贪夜蛾整个发育历期的非消耗性胁迫试验，并运用年龄-阶段两性生命表进行了系统评估。【结果】结果表明，在大红犀猎蝽的非消耗性胁迫下，草地贪夜蛾卵期发育显著减缓，2龄和5龄幼虫发育显著加快，雌成虫的产卵前期显著延长、繁殖力降低、存活率下降，但非消耗性胁迫下草地贪夜蛾的化蛹率、雌雄蛹重、性比不受影响。种群动态预测曲线表明，在大红犀猎蝽的非消耗性胁迫下，草地贪夜蛾种群数量的增长速率低于正常生长的种群。此外，大红犀猎蝽胁迫下草地贪夜蛾的种群参数呈现负面影响，但总体不显著。【结论】综上，大红犀猎蝽的非消耗性胁迫能在一定程度上抑制草地贪夜蛾的生长发育过程，但对草地贪夜蛾的繁殖影响较小，该研究为田间应用大红犀猎蝽防治草地贪夜蛾提供了理论依据。 |
| 英文摘要: |
| Non-consumptive effects induced by predators have significant potential applications in pest management. Sycanus falleni is an important predatory natural enemy with biological control value.【Aim】This study aimed to elucidate the potential impacts of S. falleni on the major invasive pest Spodoptera frugiperda.【Methods】Laboratory experiments were conducted to investigate the non-consumptive effects of S. falleni on the whole developmental period of S. frugiperda. A systematic evaluation was performed using the age-stage two-sex life table.【Results】The results showed that the egg period of S. frugiperda was significantly prolonged, while the development of 2nd and 5th instar larvae was significantly accelerated under the non-consumptive stress of S. falleni. The preoviposition period of adult females was significantly prolonged, with reduced fecundity and survival rate, although the pupation rate, weight of male and female pupae, and sex ratio of S. frugiperda were not affected by the non-consumptive stress. Population prediction curves showed that the population growth rate of S. frugiperda under the non-consumptive stress of S. falleni was lower than that of the normal-growing population. In addition, the population parameters of S. frugiperda under the non-consumptive stress of S. falleni showed negative trends, although these were not significant overall.【Conclusion】In conclusion, the non-consumptive effects of S. falleni can inhibit the growth and development of S. frugiperda to some extent, but have a lesser impact on the fecundity of S. frugiperda. This study provides a theoretical basis for the field application of S. falleni to controlling S. frugiperda. |
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