The method was established for purification of diflubenzuron by crystal technique with mixed solvents.

本文论述了利用混合溶剂——结晶法提脲的析技。

A new typal insecticide, its generation, physical and chemical properties, insecticidal mechanism, insecticidal characteristic and synthesis of diflubenzuron are introduced.

了新型杀剂──脲的发现、理化性质、杀机理、杀特点及合成方法。