自天然除虫菊花的杀虫有效成分的化学结构被确定之后,学者们在努力探索人工合成这种类似化合物的可能性。英国 Elliott 博士于1973年报导了二氯苯醚菊酯的杀虫活性,其用量仅为常量的1/10～1/20。1975年又研究了氯氰菊酯、溴氰菊酯,亩用药量仅为0.5～0.8克。1976年日本又研究了杀灭菊酯,药效高用量低,成本也大为减少。因这 Since the chemical structure of the insecticidal active ingredient of natural pyrethrum has been identified, scholars are working hard to explore the possibility of synthesizing this analogous compound. British Elliott Dr. reported the insecticidal activity of permethrin in 1973, the amount of only 1/10 ~ 1 / 20. In 1975 and the study of cypermethrin, deltamethrin, mu dose is only 0.5 ~ 0.8 grams. In 1976, Japan also studied the reduction of pyrethrins, low dosage and low cost. Because of this