蒿楝素是从印楝、茼蒿等植物中提取出来并经科学加工而制成的一种杀虫剂。早在1000多年前人们就发现这二种植物具有药用价值,后经进一步研究,从中提炼出蒿楝素这种物质。目前,蒿楝素已被公认为广谱、高效、低毒、易降解、无残留的杀虫剂,且无抗药性。此种药物可广泛应用于农、 Artemisinin is an insecticide extracted from plants such as Neem and Artemisia selengensis and processed by science. As early as more than 1000 years ago, people discovered that these two kinds of plants have medicinal value. After further study, this substance of toosendanin was extracted. At present, toosendanin has been recognized as broad-spectrum, high efficiency, low toxicity, easy degradation, no residual pesticides, and no resistance. This drug can be widely used in agriculture,