I bought a pair of Vanda orchids online. One of them looks fine and healthy but the other one had black bruising on the leaves more than halfway up the plant.
The articles I read.on the net suggest that black spots that increase in size indicate fungal infection. However, these do Not look like spots - but long stretches of bruising like on a banana skin.
I am not sure as to what corrective action to take till I can figure out what exactly is wrong with it.
Orchid pros: any thoughts?
As per recommendations on the net, I need to chop off all the infected parts. Will I be able to keep this plant alive if I have to take out more than 3/4rh of it from the bottom, including roots?