上世纪以来,在近代科学技术和工业发展的基础上,对植物源农药的开发逐渐从经验阶段上升到科学实验阶段,如除虫菊、烟草、鱼藤发展为商品化加工制剂并广泛使用。特别是对印楝的研究带动了植物源农药的发展。由于这类农药具有高效、低毒、低残留、纯天然的特点,深受广大农民的欢迎,到目前为止,研究的植物种类达数千种,开发成功的产品也很多,并已在生产实践中被广泛应用…… Since the last century, on the basis of modern science and technology and industrial development, the development of plant-derived pesticides has gradually risen from the experience stage to the scientific experiment stage. For example, pyrethrum, tobacco and rhynchophylla develop into commercial preparations and are widely used. Especially for Neem research led to the development of plant-based pesticides. Due to its high efficiency, low toxicity, low residue and pure natural characteristics, these pesticides are welcomed by farmers. So far, thousands of plants have been studied and many successful products have been developed and are in production practice Is widely used ......