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松针褐斑病是马尾松的一种新的病害。调查发现在发病严重的湿地松林下及林缘的马尾松幼树已普遍感染松针褐斑病，发病率达６７．１％，个别发病严重的植株已濒临死亡。而在马尾松纯林调查中未发现马尾松褐斑病。马尾松褐斑病发生规律是春季为发病盛期，秋季为新叶发病期；病菌潜育期比湿地松上长一个月以上，病菌子实体产生的数量也比湿地松上产生的数量少的多。可见，马尾松是抗褐斑病较强的树种。
Pine needle brown spot is a new disease of Pinus massoniana. The survey found that the Pinus massoniana saplings under the severely eroded Pinus elliottii forest and the forest margin were generally infected with pine needle brown spot and the incidence was 67.1%. Some severely affected plants were on the verge of death. However, Pinus massoniana was not found in the Pinus massoniana forest survey. The occurrence rule of Pinus massoniana is spring is the peak of disease incidence, fall is the period of new leaf development; the germination period of bacteria is longer than that of Pinus tabulaeformis by more than one month, and the number of pathogenic fungi is less than that of Pinus elliottii many. Visible, masson pine is a strong resistance to brown spot species.