生物杀虫剂千虫克对几种害虫的防治效果  

Effection Biological Insecticide QCK Control Insects

作　　者：张登峰[1] 赵新宇[1] 

机构地区：[1]青海省农林科学院植物保护研究所,西宁810016

出　　处：《青海农林科技》2004年第3期1-3,5,共4页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：应用生物杀虫剂千虫克可湿性粉剂防治小菜蛾、菜青虫、桃蚜、苜蓿蚜,有良好效果。稀释800—1600倍,喷液量750kg·hm-2,于害虫发生初期喷雾防治一次,药后7d,对油菜田小菜蛾的校正防效达到91.3%—93.4%;对甘蓝小菜蛾菜青虫的校正防效达到75.9%—83.5%,兼治桃蚜效果为46.9%—57.1%;对蚕豆苜蓿蚜的校正防效达到92.8%—97.0%。在低浓度时对天敌生物影响更小,是高毒高残留农药理想的替代品种,可以大面积推广应用。There are better effects that application of biological insecticide Qianchongke(QCK) WP to control Plutella xylostella,Pieris rapae,Myzus persicae, and Aphis medicaginis.QCK was diluted 800—1600 times,spraied 750 kg·hm^(-2)during the pest commence happened.The control effect was 91.3%～93.4% after spraied it to Plutella xylostella in rape field.Effects of control Plutella xylostella,Pieris rapae were 75.9%～83.5% and 46.9%～57.1% of Myzus persicae was controlled at same time.Rectify effect of control Aphis medicaginis was 92.8%～97.0% on broad bean.Natureal enemyes of insects were less influence with low concentration of QCK.QCK is a ideal substitute for those pestcide of high poison and high residul toxicity.QCK might be extened wider scope.

关 键 词：生物杀虫剂 千虫克 害虫 防治效果 

分 类 号：S482.3[农业科学—农药学]