我县共有森林面积80万亩,其中杉木林基地7万多亩,大部份社队办起了林场,小面积集中成片的杉木幼林和小径级杉材正在发展。但是随着杉木纯林的不断扩大,白蚁危害也相继出现,那里有杉林那里就不同程度的出现白蚁,轻的枝叶转黄,影响生长,重的枝干枯萎,大量死 My county has a total area of ​​800,000 acres of forests, of which 70,000 acres of Chinese fir forest base, most of the communes set up a forest farm, small area concentrated into pieces of young Chinese fir and footpath fir is developing. However, with the continuous expansion of pure Chinese fir plantations, the damage of termites also appeared one after another, where termites were found to varying degrees in the Chinese fir plantations. Light yellowish branches and leaves turned yellow and affected the growth. Heavy branches withered and died in large numbers