为明确4%高氯·甲氨阿维微乳剂对十字花科蔬菜小菜蛾的防治效果、最佳作用剂量及安全性,根据省农药检定所安排,我们于2004年10月份开展了田间小区试验,以便为推广应用提供依据。1材料与方法1.1供试药剂40%高氯·甲氨阿维微乳剂(北京邦农达生物工程技术有限公司提供),4.5%高效氯 In order to clarify the control effect and the best dose and safety of 4% high-chlorine, methotrexate micro-emulsion on cruciferous vegetable diamondback moth, we conducted a field plot test in October 2004 according to the arrangement of the provincial pesticide testing institute , In order to provide a basis for the promotion and application. 1 Materials and methods 1.1 for the test agent 40% high chlorine · ammonia ammonia micro-emulsion (Beijing Bangnongda Biological Engineering Co., Ltd.), 4.5% chlorine