拟除虫菊酯是模拟天然除虫菊素合成的杀虫剂。天然除虫菊的除虫效力,久享盛名。其优点是:杀虫作用快,击倒力强,可防制多种害虫,对高等动物低毒,使用安全,容易降解,对环境的污染较小。但是,种植天然除虫菊占用土地多,产量低,远远不能满足需要。为充分发挥天然除虫菊制虫的优越性,许多学者从多方面进行有效成分的化学结构及模拟合成研究。 Pyrethroids are synthetic pesticides that mimic natural pyrethrins. Pest repellent effect of natural pyrethrum, long enjoyed a good reputation. The utility model has the advantages of quick insecticidal effect, strong knock-down force, control of various pests, low toxicity to higher animals, safe use, easy degradation and less environmental pollution. However, planting natural pyrethrum takes up more land and produces less, which far can not meet the needs. In order to give full play to the advantages of natural pyrethrum insects, many scholars study the chemical structure and simulation of active ingredients in many aspects.