My prostechea which just recently finished blooming has two pbulbs turning yellow with mosaic pattern/ brown color from bottom up. They are not soft or squishy. Photo included. There are both on the same branch. Second branch looks good and green.
My question: what may be the cause? And should I let them be or cut them off?
Ray,
Thank you for your replay.
I understand the treatment necesity, but, do I remove the damage pbulbs? Or that will cause more spread of the problem?