通过28块典型样地调查，经数据处理后得出：林中红松疱锈病的发生程度与病原中转寄主马先蒿属植物存在与否关系密切。两者相距50m以上时，病害明显减轻。不同罹病程度林分的土壤物理性状调查表明：土壤渗透系数越低，林分患病与马先蒿出现的频率越高。立地土壤中主要营养物质含量的高低与病害的发生程度关系不显著。 Through 28 typical sample plots, after data processing, it was concluded that the incidence of Pseudostellaria rhynchophylla in the forest was closely related to the presence or absence of Pedicularis, the host of the pathogen. When the distance between the two is more than 50m, the disease is obviously reduced. The investigation of soil physical properties of different disease degree stands showed that the lower the soil permeability coefficient is, the higher the frequency of occurrence of forest stand and the emergence of Artemisia mandshurica. There was no significant relationship between the level of main nutrients in standing soil and the occurrence of disease.