我市夏秋季节十字花科蔬菜上害虫危害十分严重,主要有菜青虫、甜菜夜蛾、斜纹夜蛾、银纹夜蛾等,田间常常是多虫并发,加之甜菜夜蛾、斜纹夜蛾、银纹夜蛾等害虫的高龄幼虫抗药性很强,一般农药不能奏效,给防治工作带来了很大的难度。为此,我们对课题组自行研制开发的防治十字花科蔬菜害虫的1．0％苦·甲维盐ME进行了田间小区药效试验,以便明确该产品防治十字花科蔬菜害虫的田 The pests of cruciferous vegetables in the summer and autumn seasons of our city are very serious, mainly including Pieris rapae, beet armyworm, Spodoptera litura, Spodoptera litura, and the like. Fields are often complicated by worms, and beet armyworm, Spodoptera litura, silver Spider moth and other pests of the old larvae strong resistance, the general pesticide can not be effective, to prevent and control work has brought great difficulty. To this end, we conducted a task force field trial on a field trial of 1.0% Bitter Dimethicone ME, a cruciferous vegetable pest, developed and managed by our research group to identify the fields where the product is used to control cruciferous vegetable pests