Why did chronic soft rot become prevalent in Taizhou this summer?

When this disease strikes, the center leaf of an old grass turns yellow first, and after more than a month the leaf base dries up, then the same thing moves to another leaf, and the whole plant slowly dies. This disease is neither like stem rot nor likesoft rotdisease. If you gently pull out the yellowed center leaf and look, there is a blackened, water-soaked appearance; its characteristic is that the changes are relatively slow. In the early stage of the disease it looks like water-soaking damage, and people often do not take it seriously and do not pay enough attention to it. When you find it has become widespread throughout the whole pot, it is already too late, and the harm to orchids is relatively great~~ In our Taizhou we call it chronicsoft rotdisease!! Treatment method: drench the roots with agricultural streptomycin or copper-based fungicide (Keshade), and drip chloramphenicol eye drops onto the center leaf and the pseudobulb; this has a certain curative effect.