３．２％田卫士（氯·苦参碱）乳油是一种由植物性杀虫物质苦参碱与菊酯类杀虫剂氯氰菊酯混合的复配制剂，具有防治范围广、毒性低、易分解等特点。１９９７年我们进行了田卫士防治菜青虫的田间药效试验，现将试验结果总结如下：１试验材料与方法１．１供试药剂３．２％田... 3.2% Tian Wei Shi (chlorophylline) EC is a plant insecticide matrine and pyrethroid insecticide cypermethrin mixture of formulations, with a wide range of control, low toxicity, easy to decompose Features. In 1997 we conducted Tian Wei prevention and control cabbage field efficacy test, now the test results are summarized as follows: 1 test materials and methods 1.1 for the test agent 3.2% field ...