White spots in hybrid cattleya

[Merita]

Yes, it is close to other orchids, but it does not touch any, what do you think this is? I feel nervous, where can I buy Natra soap? Thanks and tell me please

---------- Post added at 04:32 PM ---------- Previous post was at 04:05 PM ----------

Sorry, I didn't answer all the questions because I got nervous. I bought this orchid in March from Hawaii, she bloomed in July and I already noticed a leaf of the plant like that, I put insecticide when it finished flowering because I had thrips insects in all. In September I did the transplant because it no longer fit in her pot and these days I noticed that all the leaves are getting like this, she achieved two new rapid growths and is getting new roots, what the plant has, I had never seen it I haven't found it online. That's it. Please explain to me what it can be, I already separated it but I have many cattleyas and I want to know the risk I am running. Thanks, I await your response.

[SouthPark]

At the moment, it's hard to say what the cause is.

As it is the only one affected while being among a bunch of other orchids or cattleya, then just simple monitoring of the situation on other plants will be ok.

Natra soap is what we have here in Australia. It's just a plant safe soap solution for handling insects on plants. In usa, they'll have similar soaps - eg. garden safe insecticidal soap, natria etc.

Some people also just use their own soap solution ----- making sure that the particular sort of soap used doesn't contain too much salts or whatever can harm orchids. So a known plant-safe soap solution is best if there's not enough knowledge about a particular soap.

Also ----- is the damage on upper side of the leaf only? Or also occurring on the under side?

It could be insect related. It could also be bacteria related too, or even fungal related.

While monitoring the situation - and if the spotting continues, then bactericide and fungicide treatments might need to be considered.

Do the leaves of this orchid get wet sometimes? Any recent heavy rain activity etc?