该文参照国际上有害生物危险性分析 (Pest Risk Analysis,简写 PRA)方法 ,从有害生物的国内分布状况、潜在的危害性、寄主植物的经济重要性、传播扩散的可能性以及危险性的管理难度等几个方面进行定性和定量分析 ,对红脂大小蠹 Dendroctonus valens的危险性做出综合评价。评价结果表明红脂大小蠹在我国属于高度危险的森林有害生物 According to the international Pest Risk Analysis (PRA) method, this paper analyzes the distribution of pests in China, the potential hazards, the economic importance of host plants, the possibility of spread and the management of risks Difficulty and other aspects of qualitative and quantitative analysis of the red beetles Dendroctonus valens the risk of making a comprehensive assessment. Evaluation results show that the red beetles in our country are highly hazardous forest pests