Abstract: Pine wilt disease (Bursaphelenchus xylophilus) is a major epidemic forest disease. North America is considered to be the origin of the disease, and Asia is the most serious region of pine wilt disease epidemic hazards, of which China is currently the most severely threatened country by pine wilt disease. The disease has caused a large area of pine tree death in more than a dozen provinces and regions in China. The 60 million hectares of pine forest is now facing the threat of the disease epidemic. At present, the prevention and control technology adopted in our country mainly centers on three key links, namely disease quarantine and epidemic monitoring, epidemic wood removal, and vector insect control. In addition, there is an active disease prevention measure, namely trunk injection. Based on the analysis of the existing prevention and control technologies, it is proposed that in the prevention and control measures, the three aspects of disease quarantine, epidemic monitoring, and epidemic wood eradication should be regarded as the core measures for the disease control, whether in areas where the disease has not yet occurred or in areas where it has already occurred. Other prevention and control measures, such as chemical control of vector insects, induction agent control and biological control, can be used as an auxiliary method for the prevention and control of pine wilt disease, selectively and purposefully. The trunk injection can be used in the protection of ancient trees or pine trees in important ecological areas. We must strive to breed local pine species that are resistant to pine wilt disease as soon as possible in a short period of time. This is an important long-term strategy for pine wilt disease prevention and control.

Key words: pine wilt disease(Bursaphelenchus xylophilus), current status of prevalence, key links, prevention and control technologies, analysis of countermeasures