29%净叶宝Ⅱ号乳油是由西北农业大学无公害农药研究服务中心研制、江苏省兴澄榆中植物农药有限公司生产的一种由黄花晒烟叶提取物——烟碱与化学农药复配的高效、低毒、低残留杀虫剂。该药剂经甘肃、陕西、宁夏、深圳等地农药检定所认定,对多种害虫防效均达90%以上。毒性试验验证,29%净叶宝乳油对 29% net Yebao No. Ⅱ EC is developed by Northwest Agricultural University Pollution-free Pesticide Research and Service Center, Jiangsu Province Xingyu Yuzhong plant pesticide Co., Ltd. produced a yellow sun-dried tobacco extract - nicotine and chemical pesticide compound Efficient, low toxicity, low residual insecticide. The agent by Gansu, Shaanxi, Ningxia, Shenzhen and other places identified pesticides, pest control against various pests reached more than 90%. Toxicity test validation, 29% net Yebao EC pair