124 years ago today, February 19, 1901 (January 1, 1901 in the lunar calendar), plant pathologist Yu Dafu was born. Yu Dafu, also known as Shujia, was born on February 19, 1901 (the 26th year of Guangxu of the Qing Dynasty). People from Shaoxing, Zhejiang. Plant pathologist, microbiologist, and one of the founders of modern plant pathology. He graduated from Jinling University in Nanjing in 1924, went to the United States for further study in 1928, received his doctorate in 1932, and was hired as a member of the American Society of Plant Pathology, a member of the Sigmaxi Society, and a member of the Fitaufi Society. After returning to China, he served as professor, president and honorary president of Jinling University, Kunming Tsinghua University Agricultural Research Institute, Peking University, and Beijing Agricultural University; in 1981, he served as doctoral supervisor, and successively served as a member of the Department of Biology of China Academy of Sciences, chairman or honorary chairman of the China Society of Plant Diseases, Plant Protection Society, and Fungal Society, deputy director of the Science Committee of the Chinese Academy of Agricultural Sciences, and member of the 3rd National Committee of the Chinese People's Political Consultative Conference, and the 4th, 5th and 6th Standing Committee of the Standing Committee of the CPPCC. In 1956, he was elected as a communication academician of the Soviet Academy of Agricultural Sciences. He has taught courses such as "Plant Pathology","Pathogenic Bacteriology","Mycology","Microbiology", and "Microbial Genetics". Cultivate varieties of wheat resistant to smut, soybean resistant to pod blight, and rice blast resistant to rice. He has presided over the research and prevention of apple rot in the Northeast fruit area, and was commended by the State Council for his significant contribution. In 1958, the 3010 excellent gibberellin strain unique to my country was cultivated to reach the world level. The research results on heterokaryotic inheritance of rice subseedlings in 1966 attracted the attention of the international academic community in the English version of "Science in China" and were quoted by many international journals and works. This achievement won the first prize for Technical Improvement of the Ministry of Agriculture in 1980, and has written more than 10 books such as Microbiology, and nearly 100 academic papers.