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去年盛夏,我养的7盆春兰、夏兰先后患病。先前发现兰叶尖端呈褐色,慢慢向下扩展。剪去病变部位后,过段时间又出现褐色叶。再后来,整片叶甚至全束叶片慢慢走向死亡。这是何病、因何引起、该如何防治?经查阅多种资料,方弄明白,原来兰花患了冠腐病。夏天高温期,为给兰株降温、增加空气湿度,便常向兰叶及地面喷水,结果帮了倒忙,无意
Last summer, I raised 7 pot Chunlan, Charlene has illness. The tip of the blue leaf was previously found brown, slowly expanding downward. Cut off the lesion site, over time there brown leaves. Later, the whole leaf and even the whole bunch of leaves slowly died. What is the cause of the disease and the cause of the disease? How should we prevent it? After checking a variety of information, we can understand that the original orchid had the crown rot disease. Summer high temperature, to cool the blue plants, increase the air humidity, often to the blue leaves and ground water, the results help the busy, no intention