沈阳化工研究院研制开发的 1 0 %比丹 (吡虫啉 )ＷＰ ,具有用量少、药效高、杀虫谱广、持效期长 ,以及残留低 ,对人、畜安全等特点。我地推广比丹始于 1 997年 ,由于该药剂质量好 ,防效高 ,深受农民欢迎。推广面积逐年增加 ,仅1 999年 ,共推广面积约 530 0ｈｍ2 以上 ,居同类产 Shenyang Chemical Research Institute developed 10% than Dan (imidacloprid) WP, with less dosage, high efficacy, broad insecticidal spectrum, long duration, and the residue is low, the safety of people and livestock and other characteristics. I started to promote Dan Bacheng in 1997, because of the good quality of medicaments and high efficiency, welcomed by peasants. The promotion area increases year by year, only 1,999 years, a total area of ​​about 530 0hm2, living in the same type of production