Help with damaged Brassolaelioc rustic spot cat
This Cattleya was doing fine until I re-potted it about two weeks ago. I cleaned out a lot of dead roots. We just went through some very cold weather which probably stressed the plant anyway. I just noticed that there is a brown blister on a leaf and the leaves are turning very purple. I lost a few.
Any suggestions of what that blister is? I attached a link below but will try to post the picture. Thanks