对我省几种主要造林树种病虫害进行了研究。本文论述了幼林期杉木、马尾松、国外松（火炬松、湿地松）、杨树病虫害种类、发生及消长趋势和逐年演替规律。 Several major afforestation tree pests and diseases in our province were studied. This paper discusses the species, occurrence, declining trend and yearly succession rule of Chinese fir, Pinus massoniana, foreign pine (Pinus taeda, Pinus elliottii) and poplar in young stands.