杜鹃花很美,如管理不善则易死亡。常见的死亡原因及防治措施是: 一、病害。黑斑病是杜鹃的主要病害。在6月至8月发病严重。气温在25℃到32℃发病最严重。气温在10℃以下停止漫延。发病后,叶片形成黑斑,渐渐干枯脱落。这是杜鹃死亡的主要原因。防治方法,一是烧毁病叶。二是药物防治。① Azaleas are beautiful, such as poor management is easy to die. Common causes of death and prevention measures are: First, the disease. Black spot is the main disease cuckoo. In June to August serious illness. Temperatures at 25 ℃ to 32 ℃ the incidence of the most serious. Temperature below 10 ℃ to stop spreading. After the onset, the leaves form dark spots, gradually dry off. This is the main reason for the death of azaleas. Prevention methods, one is to burn diseased leaves. Second, drug control. ①