随着人类环境保护意识的日益增强,世界农药市场正在发生深刻的变化:许多国家正在淘汰对环境污染严重的化学农药,越来越多地使用生物农药,如病毒农药、真菌农药、细菌农药等。目前,一些发达国家已相继研制出一系列选择性强、效率高、成本低、不污染环境, With the increasing awareness of human environmental protection, the world’s pesticide market is undergoing profound changes: many countries are phasing out chemical pesticides that are seriously polluting the environment, and increasingly employ biological pesticides such as viral pesticides, fungal pesticides, and bacterial pesticides . At present, some developed countries have successively developed a series of highly selective, efficient, low-cost and non-polluting environments,