Rice stripe and rice black-streaked dwarf diseases are two major viral diseases in China. Since 2000, these viral diseases occurred very seriously in rice and wheat rotation areas. Profs. WANG Xifeng and ZHOU Xueping at IPP joined the research team directed by Prof. ZHOU Yijun, Jiangsu Academy of Agricultural Sciences, to solve these problems. After 10-year’s collaborative studies, the team has been clear about the disastrous rules and key points for control of these two viral diseases. The scientists established detection methods of viruliferous small brown planthopper in the fields and forecast technique, achievd early warning and accurate prediction of the diseases. Finally, the scientists proposed effective green control methods to cut off virus transmission by vector insects. These two viral diseases have been effectively controlled in China.