农业科技与技术（英文）2025，Vol.26Issue(4)：46-54,9.DOI:10.16175/j.cnki.1009-4229.2025.04.006
马拉硫磷与噻虫胺、啶虫脒复配对褐飞虱的室内毒力及田间防效
Indoor Toxicity and Field Control Efficacy of Malathion Combined with Clothianidin or Acetamiprid Against Nilaparvata lugens(Stål)
摘要
Abstract
This study elucidated the synergism and field application of malathion combined with clothianidin or acetamiprid against Nilaparvata lugens.The indoor toxicity of single insecticides and their combinations against third-instar nymphs of N.lugens was evaluated using the rice seedling dipping method,and their control efficacy was assessed in a field experiment.Indoor toxicity results showed that malathion+clothianidin exhibited synergism at active ingredient mass ratios of 3∶1,5.5∶1,and 9.5∶1,with the optimal ratio of 5.5∶1 yielding a co-toxicity coefficient of 201.30.Malathion+acetamiprid demonstrated synergism at ratios of 1∶1,2∶1,and 3∶1,with 2∶1 identified as optimal,producing a co-toxicity coefficient of 165.51 and the lowest median lethal concentration(LC50).The field experiment indicated that malathion+clothianidin(5.5∶1)and malathion+acetamiprid(2∶1)achieved significantly higher control efficacy than either insecticide applied alone at 3,7,and 14 d after treatment.These findings indicated that malathion,when combined with the neonicotinoids clothianidin and acetamiprid at ratios of 5.5∶1 and 2∶1,respectively,yielded synergistic enhancement and superior field performance.关键词
马拉硫磷/噻虫胺/啶虫脒/褐飞虱/农药复配Key words
Malathion/Clothianidin/Acetamiprid/Nilaparvata lugens/Insecticide combination引用本文复制引用
朱航,刘章杨,马海昊,赵飘,周小毛,刘哲铭..马拉硫磷与噻虫胺、啶虫脒复配对褐飞虱的室内毒力及田间防效[J].农业科技与技术（英文）,2025,26(4):46-54,9.基金项目
Supported by National Key Research and Development Program Project(2021YFD1401100) （2021YFD1401100）
Agricultural Science and Technology Innovation Fund Project of Hunan Province(2023CX07)国家重点研发计划项目(2021YFD1401100) （2023CX07）
湖南省农业科技创新资金项目(2023CX07) （2023CX07）
