油茶烟病是我区油茶林的常见病,严重影响了油茶产量。 我区部分油茶产区的群众,积累了山苍子防治油茶烟煤病的简易方法和丰富经验。一九七二年七月,我们在攸县坪阳庙公社双松大队做过调查,这里野生的山苍子较多,群众称山苍子为香叶子树,称油茶烟煤病为“乌烟”。大家在座谈中反映,香叶子树对乌烟既 Camellia is a common disease of Camellia forest in our district, seriously affecting the yield of Camellia oleifera. Part of the masses of tea-producing areas in our area, has accumulated a simple method and rich experience Litsea cubeba prevention and treatment of bitter chai coal disease. In July 1972, we conducted a survey at Shuangsong Brigade, Pingyang Temple Commune, Youxian County, where there are many wild Litsea cubs. The masses called Litsea cubeba fragrans leaf tree, ". Everyone in the discussion reflected, fragrant leaf tree on both smoke