新化合物HNPC-A3066的杀螨活性及田间防治效果研究  

Bioactivity and Field Control Efficacy of Novel Compound HNPC-A3066 against the Mites

作　　者：裴晖[1] 欧晓明[1] 王永江[1] 喻快[1] 林雪梅[1] 柳爱平[1] 

机构地区：[1]湖南化工研究院国家农药创制工程技术研究中心,长沙410007

出　　处：《农药学学报》2009年第2期208-212,共5页Chinese Journal of Pesticide Science

基　　金：国家自然科学基金(20572019;20372021);湖南省自然科学基金重点项目(06JJ20054);湖南省杰出青年基金(07JJ1003);"十一五"国家科技支撑计划资助项目(2006BAE301A01-4)

摘　　要：HNPC-A3066{(E,Z)2-[2-[[[[1-甲硫基-1-[3,5-(双三氟甲基)苯基]亚甲基]胺]氧]甲基]苯基]-3-甲氧基丙烯酸甲酯}是由湖南化工研究院开发的甲氧丙烯酸酯类新型杀螨剂。采用农药生物技术测定了HNPC-A3066对棉红蜘蛛Tetranychus urticae的杀螨活性和作用方式。结果表明,HNPC-A3066对棉红蜘蛛具有良好的触杀、杀卵作用,但内吸活性很低。采用浸渍法和浸玻片法处理后48h,对雌成螨的LC50值分别为3.33和4.02mg/L;浸玻片法处理后24h,对若螨的LC50值为0.74mg/L,浸渍法处理后7d,对卵的LC50值为2.02mg/L。田间药效试验结果表明,在有效成分浓度为80～160mg/L时,施药后1、3、7和14d,HNPC-A3066对棉红蜘蛛、柑桔红蜘蛛Panonychus citri和苹果红蜘蛛Panonychus ulmi的防效分别大于77.88%、75.33%和72.65%,且对作物和天敌安全。HNPC-A3066 （E） methyl 2-[ 2-[ [ [ [ （Z） [ 1-（ 3,5-bis （trifluoromethyl）phenyl l-l-methylthio methylidene ]amino ] oxy ] methyl ] phenyl ] -3-methoxyacrylate } is a novel strobilurin miticide discovered in China. Miticidal activity of HNPC-A3066 to two spot red spider （ Tetranychus urticae） was tested in the laboratory using miticidal bioassay techniques. The results showed that HNPC- A3066 had a good contact and ovicidal action, but a weak systemic activity to the phytophagous mites. The LC50 value of HNPC-A3066 against female adult mites by leaf-dipping and slide-immersion method was 3.03 and 4.02 mg/L at 48 h after treatment, respectively, and the LC50 value against nymph mites and eggs was 0. 74 and 2. 02 mg/L at 24 h and 7 d after treatment, respectively. Field trial results demonstrated that HNPC-A3066 exhibited a good control efficacy against two spot red spider, European red mite （Panonychus ulrni） and citrus red mite （Panonychus citri）, and their average control efficacy was more than 70.88% ,75.33% and 72.65% ,respectively,at 1 d,3 d, 7 d and 14 d after application at the concentration of 80 and 160 mg/L,and it was safe to beneficial insects and crops.

关 键 词：甲氧基丙烯酸酯类杀螨剂 HNPC-A3066 杀螨活性 作用方式 田间药效 

分 类 号：S482.5[农业科学—农药学] S481.9[农业科学—植物保护]