本文通过在都昌、瑞昌和乐安的调查,认为马尾松毛虫(Dendrolimuspunctatus Walker)的发生,与林相的相关关系密切,经方差分析,纯林的危害度显著高于混交林。常灾区对纯林宜加以改造,荒山造林时也宜营造松阔混交林,阔叶树种要达到适当的比例并以乡土树种为主,混交方式因地制宜为好。 Based on the surveys in Duchang, Ruichang and Le’an, we conclude that the occurrence of Dendrolimus punctatus Walker is closely related to the forest facies. The analysis of variance shows that the damage degree of pure forest is significantly higher than that of mixed forest. In the disaster-stricken areas, the pure forest should be rebuilt. When afforestation of the barren hills, the broad-leaved mixed forest should also be built. The broad-leaved tree species should reach the appropriate proportions and be dominated by native tree species. The mode of blending should be better suited to local conditions.