People never thought that the seemingly ordinary ginkgo tree actually created a price of 5 million yuan for the technology transfer of the pesticide industry. At the 2003 National Science and Technology Awards Conference, this “Silver Fruit†and “Yintai†agricultural bactericidal activity discovery and application research project led by Professor Meng Zhaoli of Laiyang Agricultural College won the second prize of National Science and Technology Progress Award. Professor Meng Zhaoli has been engaged in Ginkgo biloba research for 15 years. During the study of this project, he first discovered and confirmed that Ginkgo biloba roots, stems, leaves, and fruits contain bactericidal antibacterial substances for agriculture, and the highly active phenol was isolated and purified from Ginkgo biloba fruit. Using this compound as the lead compound, the "Silver Fruit" and "Yintai" agricultural fungicides were synthesized, and toxicity tests, environmental safety assessments, field efficacy trials, and small and medium-scale trials were completed, completing the transfer of silver fruit production technology. Ginkgo bactericide has also been used in large areas. This achievement has opened up new ways for the research of plant-derived pesticides in China. The "Silver Fruit" and "Yintai" fungicides have broad spectrum, high efficiency, low toxicity, low residue, etc., have good compatibility with the environment, have a healing effect on the lesions of fruit trees, and can be used at the flowering stage of crops, and are suitable for green foods. Production development. 10% silver fruit emulsifiable concentrate, 20% silver fruit WP and 20% Yintai milk oilfield have more than 85% control effect on diseases such as tomato gray mold, apple tree rot, and strawberry powdery mildew. The control effect is better than local conventional medicine. At present, the 20% silver fruit wettable powder has been listed as a pesticide suitable for the production of pollution-free agricultural products by the Ministry of Agriculture. It has been promoted in more than 20 provinces, autonomous regions and autonomous regions such as Shandong, Beijing, Tianjin, etc. Yintai Fungicide has also successively developed in Hong Kong Xinbao Technology Development Co. , Shandong Longda Group's pollution-free green food base is widely used. The project has a total of 2.42 million mu of application and promotion, with an additional production value of 2.1 billion yuan and a new profit of 277 million yuan. The project was also named as the top ten scientific and technological achievements of Shandong Province in 1999 and won the first prize for scientific and technological progress in Shandong Province in 2001.