5种杀虫剂对菜青虫的田间药效试验

Field efficacy trial of five insecticides on cabbage caterpillar

为筛选有效防治菜青虫的高效、低毒药剂,选择5种杀虫剂在甘蓝上进行防治菜青虫的田间药效试验,结果表明:30%茚虫威和10%溴氰酰胺的防治效果较好,药后1、3、7d的防效在73.90%~89.91%之间;其次为4.5%高效氯氰菊酯ME 1000倍液药后1、3、7d的防效在70.14%~76.99%之间;建议交替使用10%溴氰虫酰胺SC 1000倍液与30%茚虫威3000倍液,适时使用4.5%高效氯氰菊酯ME1000倍液防治菜青虫。

Field efficacy trials of five insecticides on cabbage caterpillar were conducted in order to select an effective and low-toxic drug for cabbage caterpillar control.The results showed that 30% indoxacarb and 10% cyantraniliprole solution had efficient controlling function,the average control efficiency of 1,3,7dafter treatment was 73.90%-89.91%;the next was 4.5% beta cypermethrin ME 1000 times,the average control efficiency of 1,3,7dafter treatment for which was 70.14%-76.99%.Therefore,it was recommended to alternately apply 10% cyantraniliprole SC 1000 times and 30% indoxacarb 3000 times,and to apply 4.5% beta cypermethrin ME 1000 times at suitable times for controlling cabbage caterpillar.