II. Status of related technology development The most commonly used method is the use of Chemical (benzoic acid, copper oxychloride) and antibiotic applications. Those chemical compounds could kill pathogens directly, as well as kill plant cells. Besides, bactericides have a research cycle of up to 10 years, which is far from keeping up with the speed of bacterial evolution. Furthermore, the large-scale application of pesticides has caused environmental pollution and accelerated the rate of bacterial reproduction and evolution, so the birth of super-bacteria is also a great threat to humans' future lives. Therefore, people must find out a better way to solve this serious problem. Improving the control of farm practices sanitation is another choice, including publishing a proper watering regime, limiting crop density, and removing weed hosts. However, because most rice plants grow in the aquatic environment and Xoo could be disseminated through water media, this method could only bring limited effect. Rigid water monitoring systems are also still immature, which require significant sources while resulting in limited benefits. Resistant cultivars, a more effective choice, made it possible to grow plants that can resist Xoo. However, most people still reject genetically modified food, making it a controversial issue. Since rice is a major food and starch resource for people in many countries, people require sustainable systems to endure the change. But many scientists still worry that large-scale applying genetic modified food decreases biodiversity and tolerance. What's more, Xoo has the capacity to express effectors that suppress some host defence responses, often this resistance is eventually overcome (Verdier et al., 2011). Phage therapy is another kind of therapy using natural predatory relation between bacteria and phage. According to the mechanism of how phages kill the bacteria, it has less chance to generate super-bacteria, and terminate the whole species at a very fast speed. However, phage therapy has faced some unavoidable questions. (more detail in our design page