8 种杀虫剂对广东草地贪夜蛾的田间防效及其评价

林少源; 陈炳旭; 徐　淑; 全林发; 池艳艳

文章摘要

林少源，陈炳旭，徐　淑，全林发，池艳艳.8 种杀虫剂对广东草地贪夜蛾的田间防效及其评价[J].广东农业科学,2020,47(3):97-102

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Field Efficacy of Eight Insecticides on Spodoptera frugiperdain Guangdong and Their Evaluation

DOI：10.16768/j.issn.1004-874X.2020.03.013

中文关键词: 草地贪夜蛾甲维盐虱螨脲氯虫苯甲酰胺甘蓝夜蛾核型多角体病毒防治效果防效投入比

英文关键词: Spodoptera frugiperda emamectin benzoate lufenuron chlorantraniliprole mamestra brassicaenuclear polyhedrosis virus control efficacy investment ratio of control efficacy

基金项目:广东省现代农业产业技术体系绿色发展共性关键技术研发创新团队项目（2019KJ112）

作者	单位
林少源，陈炳旭，徐　淑，全林发，池艳艳	广东省农业科学院植物保护研究所 / 广东省植物保护新技术重点实验室，广东广州 510640

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中文摘要:

【目的】比较 8 种杀虫剂对广东草地贪夜蛾的田间防效、防效投入比关系。【方法】参照《农药田间药效试验准则》开展田间试验，测定 50 g/L 虱螨脲乳油、5% 甲氨基阿维菌素苯甲酸盐水分散粒剂，200 g/L 氯虫苯甲酰胺悬浮剂、20 亿 PIB/L 甘蓝夜蛾核型多角体病毒悬浮剂等 8 种药剂对广东玉米田草地贪夜蛾的防治效果。【结果】25 g/L 溴氰菊酯乳油、25 g/L 高效氯氟氰菊酯乳油、50 g/L 虱螨脲乳油、1.8% 阿维菌素乳油、5% 甲氨基阿维菌素苯甲酸盐水分散粒剂、200 g/L 氯虫苯甲酰胺悬浮剂、20 亿 PIB/L 甘蓝夜蛾核型多角体病毒悬浮剂、 300 亿孢子 /g 球孢白僵菌可湿性粉剂对草地贪夜蛾的田间最高防效分别为 70.75%、66.75%、92.23%、75.21%、 84.29%、92.52%、88.12%、71.41%；防效投入比分别为 11.60、5.56、13.56、8.05、9.00、18.76、42.13、87.50。【结论】在用药预算有限的情况下，推荐使用 5% 甲氨基阿维菌素苯甲酸盐水分散粒剂；在用药预算比较充足的情况下，优先推荐 50 g/L 虱螨脲乳油、200 g/L 氯虫苯甲酰胺悬浮剂；20 亿 PIB/L 甘蓝夜蛾核型多角体病毒悬浮剂可用于草地贪夜蛾幼虫的生物防治。

英文摘要:

【Objective】The control effects and investment ratio of control efficacy of eight insecticides on Spodoptera frugiperda in Guangdong were compared.【Method】According to the Pesticide-Guidelines for the Field Effi cacy Trials, field trials were conducted in corn fields to evaluate the control effects of eight insecticides, such as lufenuron 50 g/L EC, emamectin benzoate 5% WDG and chlorantraniliprole 200 g/L SC, mamestra brassicae nuclear polyhedrosis virus 20 billion PIB/L SC, and etc.【Result】The highest control effects were 70.75%, 66.75%, 92.23%, 75.21%, 84.29%, 92.52%, 88.12% and 71.41% under treatments of deltamethrin 25 g/L EC, lambda-cyhalothrin 25 g/L EC, lufenuron 50 g/L EC, avermectin 1.8% EC, emamectin benzoate 5% WDG, chlorantraniliprole 200 g/L SC, mamestra brassicae nuclear polyhedrosis virus 20 billion PIB/L SC and beauveria bassiana 300 billion spore/g WP, respectively. The ratios of control effects and costs corresponding to the treatments above were 11.60, 5.56, 13.56, 8.05, 9.00, 18.76, 42.13 and 87.50, respectively.【Conclusion】Under the condition of limited pesticide budget, emamectin benzoate 5% WDG is recommended; under the condition of adequate pesticide budget, lufenuron 50 g/L EC and chlorantraniliprole 200 g/L SC are recommended. Mamestra brassicae nuclear polyhedrosis virus 20 billion PIB/L SC can be used for biological control of S. frugiperda larvae.

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