Dark lines on Vanda Cindy Banks; sunburn or something else?
Today when I pulled down my Vanda Cindy Banks I noticed these black lines that appeared suddenly. With the tree I just lost, I have lost a lot of my shade during the day. I have moved my orchids to different spots while I wait for my shade cloth, but I think some may still be getting to much midday sun.
I have checked for pest and there aren't any I can see. My question is do you think this is a sunburn or something else?
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