目前,不少地方发生杉木黄叶病。为了摸索发病原因,由广东农林学院林学系、湖南省林科所、黔阳地区林科所、湘西土家族苗族自治州林科所和国营漩水林场等单位,组成了杉木黄叶病调查小组,于一九七三年十月中旬至十一月下旬,先后到湖南省黔阳地区靖县排牙林场、湘西 At present, many places have yellow leaf blight of fir. In order to explore the cause of the disease, the investigation group of the Chinese fir leaf yellow disease was formed by the Forestry Department of Guangdong Academy of Agriculture and Forestry, the Forestry Branch of Hunan Province, the Forestry Branch of Qiangyang Region, the Forestry Branch of Xiangxi Tujia and Miao Autonomous Prefecture and the State-owned Whirlpool Forest Farm, From mid-October 1973 to late November, he went to the Paiya Forest Farm in Qian County, Guizhou Province,