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.
出处
《长江蔬菜》
北大核心
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)
