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以生物防治为主的综合防治,是当前农林植保的新发展。世界各国都在用以生物防治为主的综合防治代替单一使用化学农药防治方法。几百年来,在植物保护中,化学防治占有重要地位。特别是自有机杀虫剂、杀菌剂问世以来,给植物保护工作带来了巨大的变化。由于有机杀虫剂、杀菌剂广泛使用,把病虫害的防治工作提高到了一个新的水平,为农林业生产的增产创造了有利条件。但是,随着化学农药长期大量使用,也带来了一系列付作用:农药中毒问题已引起了许多
The comprehensive prevention and control based on biological control is the new development of current agriculture, forestry and plant protection. All countries in the world are using integrated prevention and treatment of biological control as a single alternative to chemical pesticide control methods. For hundreds of years, chemical control plays an important role in plant protection. Especially since the advent of organic pesticides and bactericides, great changes have taken place in plant protection. Due to the extensive use of organic insecticides and bactericides, the prevention and control of pests and diseases have been raised to a new level, which has created favorable conditions for the increase of production of agriculture and forestry. However, with the long-term extensive use of chemical pesticides, a series of functions have also been brought in. Pesticide poisoning problems have caused many