Guo Zhao will be observing the control of whitefly on tomatoes. Han Haolin's profile: Guo Zhaojiang, born in March 1985, is now the director of the Plant Protection Research Office of the Vegetable and Flower Research Institute of the Chinese Academy of Agricultural Sciences, and the doctoral supervisor. He is mainly engaged in the research of vegetable pest disaster mechanism and green prevention and control. Guo Zhao will be a new academic star of the Vegetable and Flower Research Institute of the Chinese Academy of Agricultural Sciences (hereinafter referred to as the "Vegetable and Flower Institute"). At the end of last year, with a series of outstanding research results, the "gouging in the ground" post-85 young scientist won the 17th China Youth Science and Technology Award. "Learning agriculture is' ploughing ', and' ploughing 'can also produce world-class achievements." Guo Zhao will think that the agricultural research with grounding will also have broad prospects. Explain the scientific mechanism and uncover the mystery of the "super pest" polyphagous. The adult of Bemisia tabaci is less than 1mm. It looks very inconspicuous, but it is a "super pest" that makes farmers headache. According to the difference of host range, pests are generally divided into three categories: monophagous, oligophagous and polyphagous. Bemisia tabaci is a typical polyphagous pest. It can eat more than 600 host plants, including many important vegetable crops, and is a veritable "champion" of pests. What is more frightening is that it not only sucks the juice of vegetable leaves through the mouth, but also transmits more than 300 plant viruses, causing secondary damage to vegetables. The Food and Agriculture Organization of the United Nations lists whitefly as the second largest pest in the world. It is the only agricultural pest that has been labeled as "super pest" at present, and is also the main pest of protected vegetables in China. Although the effect of using chemical pesticides to control "super pests" is good, there are hidden dangers that lead to pesticide residues exceeding the standard. Guo Zhao will believe that the key to achieving green prevention and control is to develop a new generation of efficient and safe green precise prevention and control technology for vegetable pests on the basis of in-depth research on the occurrence and damage laws and disaster mechanism of vegetable pests. As early as the beginning of this century, Zhang Youjun, the tutor of General Guo Zhao and the researcher of the Institute of Vegetable and Flora, carried out the research on the feeding habits of whitefly. In the past 10 years, thanks to the rapid development of genome sequencing technology, Zhang Youjun's team took the lead in completing the whole genome sequencing of whitefly, laying a foundation for solving the problem of the feeding habits of whitefly. However, in the face of vast amounts of gene sequence information, the team has no idea how to carry out the next research. "If the genome is compared to the treasury of research, whoever finds the key to the treasury first will gain valuable wealth." Guo Zhaojiang introduced that he combined with the work of teachers, led the team to continue to tackle key problems, and finally found the key to open the "treasury". In 2021, Guo Zhao's team first clarified the polyphagous mystery that the "super pest" whitefly can harm more than 600 host plants internationally, and the relevant results were published in the top international journal Cell with a cover article. This is the first time that China's research achievements in the field of agricultural insects were published in Cell, and selected as the top ten news of China's scientific and technological progress selected by academicians of the two academies that year. Industry experts commented that this pioneering research from 0 to 1 has taken a big step on the road to conquer the "super pest". Guo Zhaojiang's team's research findings,