生物灾害科学2023，Vol.46Issue(4)：445-451,7.DOI:10.3969/j.issn.2095-3704.2023.04.67
虫螨腈对斜纹夜蛾的毒力及亚致死效应研究
The Sublethal Effects of Chlorfenapyr on Spodoptera litura
摘要
Abstract
[Objective]The long-term and unreasonable use of chemical pesticides has led to the resistance of Spodoptera litura to insecticides such as pyrethroids and available phosphorus.Bufenitrile is a pyrrole insecticide with a wide insecticidal spectrum,high control effects,good persistence,and safety,making its use more and more widespread.[Method]This study used the leaf soaking method to determine the toxicity of imidacloprid to the 3rd instar larvae of Spodoptera litura.Different carriers were used to treat the 3rd instar larvae of Spodoptera litura with sublethal doses of LC10 and LC30,and the effects of larval weight,pupation rates,pupal weight,and female ratios were recorded.[Result]The pupation rates and female ratios were significantly reduced.The growth and development of the 3rd instar larvae of Spodoptera litura treated with sublethal doses of imidacloprid were severely inhibited,mainly manifested in a significant decrease in larval body mass,pupation rates and female ratios,and a significant reduction in pupal weight.[Conclusion]Imidacloprid has a good effect on the control of Spodoptera litura,and the control should be done in the early larval stage.The research results can provide scientific basis for guiding the rational application of imidacloprid to prevent and control pests such as Spodoptera litura.关键词
斜纹夜蛾/虫螨腈/亚致死效应Key words
Spodoptera litura/chlorfenapyr/sublethal effect分类
农业科技引用本文复制引用
刘迪,施秋萍,周亚男,安丰轩,马蕊,古能平,蒋琴杰..虫螨腈对斜纹夜蛾的毒力及亚致死效应研究[J].生物灾害科学,2023,46(4):445-451,7.基金项目
广西职业技术学院校级项目(231101)、2023年度广西高校中青年教师科研基础能力提升项目(2023KY1019)、2022年度广西高校中青年教师科研基础能力提升项目(2022KY1203)和茶树栽培与茶叶加工专业群本科层次职业教育研究与实践项目(20200208108) （231101）
