Is this root rot or a bacterial infection or bugs or all three?

[elaerna]

Originally Posted by DrDawn

Sending support, we will help you get this orchid back to blooming, even if it takes a little while.

Thank you. I just want it to stay alive. Since the orchid grower cut off the leaves yesterday it seems the remaining ones are yellowing a bit slower. I am noticing now that where he cut one of the leaves seems to be turning yellow. Is that indicative of crown rot? 06/09/2020 - Album on Imgur

It was watered yesterday by the grower but then I repotted it so I wasn't sure about watering today. It does feel dry both the roots and the bark (although of course the bark since it is new).

I will water tomorrow morning unless that doesn't sound like a good idea. I don't know what if anything to do about the yellowing at one of the leaves where it was cut. Is that normal?

---------- Post added at 01:50 PM ---------- Previous post was at 01:45 PM ----------

Originally Posted by Roberta

Once you get a feel for how damp or dry your plant is, you won't have to do the test, you'll just know. When you water, do it so that water runs through the pot (and then let it drain). This flushes out any accumulated crud, and also pulls fresh air into the root zone - because what you really want is "humid air" around the roots. Also, as the mix dries out, the water is replace by air... which is what you want. This time of year - getting warm so the A/C is running - it will probably dry out fairly fast, so 2-3 times a week for watering is not too much - again if it is flushed well. Don't sweat the exact humidity... if the plant goes through that wet-dry cycle, there will be humidity around the roots, and that's mostly what matters. The "bag" trick can raise the humidity around the leaves to slow down transpiration while it's working on new roots, but you can accomplish pretty much the same thing with the watering scheme I suggested.

Can you clarify what is the watering trick you suggested? Just a medium with a lot of space so that water and air can flow through?

Does putting a bag over the leaves increase chances of crown rot by trapping moisture near the crown? I hear a plant basically cannot recover from crown rot so I am trying to avoid that.