桉树红叶枯梢病诊断及防治

Diagnosis and Control of Eucalyptus Red Leaf Dieback

[目的]探讨重庆地区桉树红叶枯梢病的发病原因及防治方法。[方法]通过症状观察、保湿培养、显微镜检验、土壤和叶片的营养元素含量检测对永川红旗林场危害严重的桉树红叶枯梢病进行诊断。[结果]该病是因严重缺乏微量元素硼引起,简要提出了该病害的预防和控制方法。[结论]为桉树红叶枯梢病的防治提供了理论依据。

Objective J The aim was to explore cause and control methods of Eucalyptus red leaf dieback in Chongqing area. L Method ]The Eucalyptus red leaf dieback in Yongchuan Hongqi Forest Farm was diagnosed through symptom observation, waterlogged incubation and micro- scope examination, determining mineral nutrient contents of leaves and soil. [ Result ] The reason of high incidence Eucalyptus red leaf die- back was lack of the boron, and some comprehensive methods of controlling this disease were also put forward. [ Conclusion ] The research re- sult provides theoretical basis for the control of Eucalyptus red leaf dieback.