新化合物HNPC-A3061的室内生物活性研究

Bioactivity of Novel Compound HNPC-A3061 Against Several Insects in Lab

HNPC-A3061,即4-溴-2-(4-氯苯基)-1-((2-氯乙氧基)甲基)-5-三氟甲基吡咯-3-甲腈,是由湖南化工研究院开发的吡咯类新型杀虫杀螨剂。采用农药生物技术在室内测定了新化合物HNPC-A3061对几种害虫和害螨的生物活性,试验结果表明,HNPC-A3061是一个高效广谱的新化合物,对多种害虫及害螨具有很好的防效。对鳞翅目害虫粘虫、小菜蛾和斜纹夜蛾的LC50值分别为25.45、46.02和51.13mg/L;对同翅目的稻黑尾叶蝉和蚕豆蚜的LC50值分别为>400和24.65mg/L;对鞘翅目稻水象甲的LC50值为1.19mg/L,对玉米象3d和10d的LC50值分别为27.53mg/L和2.16mg/L;对双翅目的家蝇成虫LD50值为0.2169μg/虫,对家蝇幼虫的LC50值为70.96mg/L;对蜱螨目棉红蜘蛛的LC50值为2.63mg/L。

HNPC-A3061, 4-bromo-1-[（2-chloroethoxy） methyl]-2-（4-chlomphenyl）-5-（trifluommethyl）-1H-pyrrole-3- carbonilrile is a novel pyrrole insecticides and acaricides discovered in China. The bioactivity of HNPC-A3061 to several insects and mites was tested in the laboratory using insecticide bioassay techniques. The results showed that HNPC-A3061 was a novel compound with high efficiency and broad spectrum properties, which posses excellent control effects on many insect and mite pests. The LC50 value of HNPC-A3061 against the lepidopterous insects such as oriental armyworm （Mythimna separata）, diamondback moth （Pluttella xylostella ） and tobacco caterpillar （Spodoptera litura） were 25.45, 46.02 and 51.13 mg/L at 24 h after treatment, respectively; the LC50 value against homopterous insects such as green rice leafhopper （Nephotettix cincticeps） and been aphids （Aphisfabae Scopoli.） were more than 400 and 24.65 mg/L at 48 h after treatment, respectively; the LC5o value against coleoptera insects such as rice water weevil （Lissorhoptrus oryzophilus） was 1.19 mg/L at 72 h after treatment, against maize weevil （Sitophilus zeamais） were 27.53 and 2.16 mg/L at 3 d and 10 d after treatment, respectively; the LC50 value against diptera insects such as larvae and adults of house fly （Musca domestica） were 70.96 mg/L and 0.216 9 μg/inseet, respectively; the LC50 value against acarina mite such as two spotted spider （Tetranychus urticae） was 2.63 mg/L.