小菜蛾主要为害秋白菜、甘蓝等十字花科蔬菜，尤其在上茬西甜瓜、下茬白菜栽培形式下为害更重，影响质量和产量。为了提高杀虫效果，我站用杜邦安打在秋白菜上进行防治小菜蛾试验，取得良好效果。试验选两个乡镇１３００平方米。上茬香瓜，下茬秋白菜。用敌杀死做对照。每６６ The main cause of diamondback moth is cabbage, cabbage and other cruciferous vegetables, especially in the previous crop of melon, cabbage cultivated under the more damaging, affecting the quality and yield. In order to improve insecticidal effect, I stand in the autumn cabbage with Du Pont ammunition to prevent diamondback moth test, and achieved good results. Test two townships selected 1300 square meters. On the stubble melon, autumn cabbage next crop. Use the enemy to kill as a control. Every 66