编者按近年来．随着生产的高速发展，农药的使用量越来越大。但是，在生产实践中，不少人由于缺乏农药知识和使用技术，乱用滥用农药，污染环境，造成农药中毒及无端增加生产成本的现象均不同程度的存在。为避免这些现象的发生，必须对农药各个方面的知识做到相应的了解，本刊 Editor in recent years. With the rapid development of production, the use of pesticides is growing. However, in the production practice, many people are experiencing different degrees due to lack of pesticide knowledge and use of technologies, indiscriminate use of pesticides, environmental pollution, pesticide poisoning and unjustified increases in production costs. In order to avoid the occurrence of these phenomena, knowledge of all aspects of pesticides must be properly understood.