一、发展微生物防治的重要意义 1.农药公害急待防除: 应用化学农药防治农林害虫,在四十年代中期以后,随着有机合成农药的迅速发展,已成为植物保护的主要手段,无疑,对控制农林害虫的蔓延为害,促进农林生产的发展,发挥了巨大作用。但“事物都是一分为二的”,由于化学农药长期的、普遍的、大量的应用,也暴露了不少缺点,其中特别严重的是:①影响人体健康。不仅是剧毒农药的急性中毒问题,更严重的是DDT和六六六等稳定性农药残毒积累的慢性中毒问题。据报道,日本有些人奶中已发现有六六六,美国和西德有些人体脂肪中含有DD First, the significance of the development of microbial control 1. Pesticide public health emergency: the use of chemical pesticides to control pests in agriculture and forestry since the mid-1940s, with the rapid development of organic synthetic pesticides, has become the main means of plant protection, no doubt, right Controlling the spread of agricultural and forestry pests and promoting the development of agriculture and forestry has played a significant role. However, “things are divided into two parts”. Due to the long-term, common and large-scale application of chemical pesticides, many shortcomings have also been exposed. Among them, the most serious ones are: ① affecting human health. It is not only the acute poisoning problem of highly toxic pesticides, but also the chronic poisoning problem of the accumulation of residual pesticides such as DDT and hexa- It is reported that some people in Japan have found six hundred sixty-six milk, the United States and West Germany, some human fat contains DD