三种植物性杀虫剂对菜青虫的田间药效评价  

Evaluation of Control Effects of Three Plant Original Insecticides on Pieris rapae L.

作　　者：龙丽萍[1] 唐文伟[2] 凌炎[2] 

机构地区：[1]广西农业科学院植物保护研究所,南宁530007 [2]广西大学

出　　处：《长江蔬菜》2005年第7期42-43,共2页Journal of Changjiang Vegetables

基　　金：广西青年科学基金(桂科青0007016);广西农业科学院科技发展基金(2002028);广西新世纪十百千人才工程(批准号2001215)

摘　　要：田间试验结果表明:0.1%闹羊花素-Ⅲ号乳油和0.3%印楝素乳油1000￣2000倍液,药后3￣7天对菜青虫的防效为98.13%￣100%,药后第10天的防效为82.43%￣90.69%,与对照药剂4.5%高效氯氰菊酯乳油2000倍液相当;2.5%鱼藤酮乳油500￣1000倍液对菜青虫亦有较好的防治效果,三种药剂对甘蓝的生长均没有影响。The effects of three plant original insecticides were evaluated against Pieris rapae L. in the field. The results showed that 0.1% rhodojaponin EC and 0.3% azadirachtin EC provided with 98.13%-100% and 82.43%-90.69% control percantage after 3-7 days and 10 days with the dilution times of 1 000-2 000 respectively. It was similar to the effect of 4.5% bata-cypermethrin EC, and 2.5% rotenone EC also provided a satisfactory control effect under the concentration of 500-1 000 dilution times.

关 键 词：植物性杀虫剂 菜青虫 田间药效试验 蔬菜害虫 

分 类 号：S436.35[农业科学—农业昆虫与害虫防治]