Can a sick Phalaenopsis survive? A guide to common diseases

Can a sick Phalaenopsis survive? It depends. Actually, as long as it is discovered early and treated promptly, it can be saved most of the time. But if you wait until the disease has spread, the roots are mostly rotted, and all the leaves are wilted, then it may really be too late. So the key is not to wait - act as soon as you see something wrong.

So what diseases is Phalaenopsis prone to? Let me mention a few common ones. The most common is probably root rot, which is especially likely to affect people who water without paying attention. At first, there may just be a bit of root rot at the bottom of the pot. If you do not notice it, gradually the whole root mass becomes soft and limp, turns brown or even black, and crumbles when pinched. At this point the leaves will wrinkle and look listless, as if short of water, but in fact the roots have rotted and cannot absorb water. If you find this, do not panic. Quickly trim away the rotted roots, soak the remaining healthy roots in carbendazim for ten minutes, repot in completely fresh growing medium, and it may just recover.

Then there is soft rot, which comes on rather suddenly. Water-soaked spots suddenly appear on the leaves, soft and sticky to the touch, and they slowly expand and may even give off a bit of a bad smell. This is mostly caused by water splashing into the crown of the plant when watering, and then being kept in a stuffy, poorly ventilated place. You must quickly cut off the diseased leaves, cutting a bit into the healthy part as well, wipe the wounds with carbendazim, leave the plant in a ventilated place to dry, and do not let water accumulate in the crown again.

There is also anthracnose, in which small round spots appear on the leaves, yellow around the edge and brown in the center, sometimes with small black dots. This is generally caused by an environment that is too humid and also a bit hot and stuffy. In mild cases, just cut off the diseased leaves. In severe cases, you can spray a little thiophanate-methyl. Remember not to let the leaves stay constantly wet.

Stem rot is also troublesome. The rot is mainly at the base of the stem. At first the stem may just turn a bit brown, then it slowly spreads upward, and the leaves may suddenly cause the whole plant to collapse. At this point you need to check whether there is any part of the stem that has not rotted. If the base has completely rotted, you may have to rely on a side shoot to save it. If there is no side shoot, it is difficult.

In addition, there is leaf spot disease, in which various irregular spots grow on the leaves. Although it is not as fatal as the previous ones, it looks unpleasant and will slowly expand. Usually, just be careful not to let direct sunlight be too strong and not to splash water on the leaves. This can basically prevent it.

In fact, when Phalaenopsis gets sick, it is mostly related to the environment. For example, watering too much, poor ventilation, and sudden rises and falls in temperature all make it easy for pathogens to take advantage. So pay more attention at ordinary times. If you see that the leaves look wrong or the root color has changed, check and deal with it quickly. Do not let a small illness drag on into a serious one. Most of the time it can be saved.