新化合物HNPC-A8008对鳞翅目害虫的活性及田间防治效果  

Toxicity and Field Control Efficacy of Novel Compound HNPC-A8008 against Lepidopterous Pests

作　　者：裴晖[1,2,3] 易正华[2,3] 欧晓明[2,3] 白建军[2,3] 李有志[1] 喻快[2,3] 何莲[2,3] 雷满香[2,3] 林雪梅[2,3] 柳爱平[2,3] 

机构地区：[1]湖南农业大学生物安全科学技术学院,长沙410128 [2]湖南化工研究院国家农药创制工程技术研究中心,长沙410014 [3]农用化学品湖南省重点实验室,长沙410014

出　　处：《农药》2012年第9期688-690,695,共4页Agrochemicals

基　　金：国家"十二五"科技支撑计划(2011BAE06B01;2011BAE06B08);湖南省科技计划重点项目(2010FJ2003)

摘　　要：[目的]评价新化合物HNPC-A8008[5-(3-氯烯丙基)氨基-1-(2,6-二氯-4-三氟甲基)苯基-4-三氟甲基亚磺酰基吡唑-3-腈)]对几种鳞翅目害虫的室内杀虫活性和田间防治效果。[方法]分别采用浸渍法和常规喷雾法进行室内毒力测定和田间药效试验。[结果]HNPC-A8008对鳞翅目害虫黏虫、菜青虫、小菜蛾、斜纹夜蛾48 h的LC50值分别为0.73、0.94、1.14、25.70 mg/L;在剂量为15、30、45 g a.i./hm2时,药后1、3、7 d对小菜蛾和菜青虫的田间防效分别超过了81.41%、89.80%;在剂量为30、60、90 g a.i./hm2时,药后14 d,对稻纵卷叶螟和二化螟的田间防效分别超过了66.99%、72.32%。[结论]新化合物HNPC-A8008在室内对多种鳞翅目害虫表现出很高的毒杀活性;对小菜蛾、菜青虫、稻纵卷叶螟、二化螟有良好的田间防治效果,且对作物和天敌安全。[Aims] HNPC-A8008[5-（3-chloroallylamino）- 1-（2,6-dichloro-4-（trifluoromethyl）phenyl）-4-（trifluoromethyl-sulfinyl）-lH-pyrazole-3-carbonitrile] was a novel potential insecticide discovered by Hunan Research Institute of Chemical Industry, China. In order to provide a scientific reference for its further research and development, the insecticidal activity in greenhouse and field efficacy of this novel insecticide HNPC-A8008 against several lepidopterous pests were investigated in the paper. [Methods] Leaf-dipping and spraying method were used to evaluate the insecticidal activity and field efficacy, respectively. [Results] The LCs0 value of HNPC-A8008 against lepidopterous pests such as oriental armyworrn（Mythimna separata）, cabbage worm（Pieris rapae）, diamondback moth（Pluttella xylostera）, and beet armyworm（Spodoptera litura） were 0.73, 0.94, 1.14 and 25.70 mg/L, respectively, at 48 h after treatment. At the application dosage of 15, 30 and 45 g a.i./ha, the average control efficacies of HNPC-AS008 against diamondback moth and cabbage worm were more than 81.41 and 89.80%, respectively, at 1st, 3rd and 7th day after treatment. At the dosage of 30, 60 and 90 g a.i./ha, the average control efficacies against rice leaf folder（Cnaphalocrocism edinalis） and rice striped borer（Chilo suppressalis） were more than 66.99 and 72.32%, respectively, at 14th day after treatment. [Conclusions] HNPC-AS008 had excellent insecticidal activity and field control efficacy against diamondback moth, cabbage worm, rice leaf folder and rice striped borer, and it is safe to beneficial insects and crops.

关 键 词：HNPC—A8008 鳞翅目害虫 杀虫活性 田间药效 

分 类 号：S482.3[农业科学—农药学]