拉索是对多种一年生单子叶及双子叶杂草有防治作用的选择性芽前除草剂。由美国孟山都公司研究开发的,1969年在美国首次登记在玉米和大豆地使用,其次也用在花生、棉花及蔬菜地中。拉索在美国是十个最为广泛使用的农药之一。在美国,1972年以前登记的农药,国会要求分期分批的进行重新登记。也就是对某药利弊进行重新评价。一旦主管农药登记的环保局发现某药在毒性、环境方面有某些异议时,就 Cables are selective pre-emergence herbicides that control and prevent many annual monocotyledonous and dicotyledonous weeds. Developed by Monsanto, USA, it was first registered in the United States in 1969 for corn and soybeans, and secondarily for peanuts, cotton and vegetables. Cable is one of the ten most widely used pesticides in the United States. In the United States, registration of pesticides before 1972 requires Congress to re-register in batches. That is, the pros and cons of a drug to re-evaluate. Once the Environmental Protection Agency in charge of registering pesticides has found some objection to toxicity and the environment,