论文部分内容阅读
在毛主席革命路线的指导引下,我省造林事业蓬勃发展,各地营造了大片马尾松、云南松、华山松林,现大都已郁闭成林。但由于有些地区在营造时,对树种和宜林地的选择、树种配置没有引起足够的重视,因而导致赤枯病(Pestalotia Sp.),赤落叶病(HypodermaSp.)等多种森林病害严重发生,造成林木生长缓慢,甚至大面积死亡,损失很大。近年来,我省广大林业职工遵循毛主席关于“同病虫害作斗争”的伟大教导,积极开展药剂防治工作,取得了显著成绩,但仍不能根除上述病害。为了进一步防治森林病害,选择抗病树
Under the guidance of Chairman Mao’s revolutionary line, afforestation in our province has been booming. Massive masson pine, Pinus yunnanensis and Huashan pine forests have been built around the province. However, due to the lack of adequate attention paid to tree species and the selection of suitable forest species in some areas during the construction period, Pestalotia Sp. And Hypoderma Spores cause a great number of forest diseases, Resulting in slow growth of trees, even large-scale death, great loss. In recent years, the vast majority of forestry workers in our province have followed the great teachings of Chairman Mao on “fighting against pests and diseases” and actively carried out preventive and control work on pharmaceuticals. The achievements made remarkable achievements have not yet eradicated the above diseases. In order to further combat forest diseases, choose disease-resistant trees