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河北省坝上地区杨树腐烂病比较严重。1968年到1970年我场杨树幼林大量发生此病,一些地块染病植株达50％以上,严重影响了幼林健康成长。本着防重于治的原则,我场开展了营林措施防治杨树腐烂病的实验,几年来收到了良好效果。许多营林措施已在生产中推广使用,基本上控制了5000多亩杨树幼林腐烂病的发展。
Hebei Province Bashang area poplar rot disease is more serious. From 1968 to 1970, a large number of young poplar forests occurred in our field. Some of the plots infected more than 50% of the plants, seriously affecting the healthy growth of young forests. In line with the principle of preventing duplication of efforts, we conducted experiments on the prevention and treatment of poplar rot disease in our field and received good results in recent years. Many measures of silviculture have been promoted in production and basically controlled the development of decay of young poplar trees in more than 5,000 mu.