Michelia often spend Jieqiao Chong damage of sewage and coal, can be found immediately brush Jieqiao Chong addition, coal polluter disease can be self-cleaning spray washing eradication.

• 含笑花常有介壳虫及煤污病为害，发现介壳虫可立即刷除，煤污病可喷洗保洁自会消灭。