甘兰夜蛾是我区豌豆、蚕豆和十字花科蔬菜上的一种重要害虫。过去一般使用DDT、敌百虫、DDV进行防治。近年来,我区开始推广使用敌杀死、甲胺磷、氧化乐果等新型农药。为了探明其对甘兰夜蛾的防治效果,我们用上述三种新农药与DDV进行了比较防治效果试验。现将试验情况简结如下: Hornworm is an important pest on pea, broad bean and cruciferous vegetables in our district. In the past generally use DDT, trichlorfon, DDV for prevention and treatment. In recent years, my area began to promote the use of the enemy killed, methamidophos, omethoate and other new pesticides. In order to ascertain its control effect on H. armigera, we compared the efficacy of the three new pesticides with DDV. Now the test summary is as follows: