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英国 Rothamsted 世界农业研究中心研制的一种杀虫剂,无污染,比 DDT 的效力高100倍,而且使用安全,没有任何副作用。经联合国世界卫生组织严格鉴定之后,允许在农业和公共环境卫生事业上广泛应用,并批准在西欧、北美和日本大规模生产。这种人工合成的杀虫剂是摹仿了由除虫菊(东非一些国家种植的植物)的花得来的天然除虫剂的化学分子结构而制成的。在非洲已在采蝇上对该药进行了试验,取得了使人满意的效果。这种杀虫剂能有效地对付对老一代杀虫
An insecticide developed by the Rothamsted World Agricultural Research Center in the United Kingdom is pollution-free and 100-fold more potent than DDT and safe to use without any side effects. After being strictly identified by the UN World Health Organization, it is allowed to be widely used in agricultural and public environmental health undertakings and to approve large-scale production in Western Europe, North America and Japan. The synthetic insecticide is made by imitating the chemical structure of a natural insecticide derived from the flower of pyrethrum (a plant grown in some East African countries). The drug has been tested on tsetse flies in Africa and satisfactory results have been achieved. This insecticide can effectively deal with the insects of the older generation