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This is a discussion on New growth turned black and dried up within the Orchid Ailments / The Compost Pile forums, part of the Orchid Culture category; Good info and advice from Svetlana. Especially the don't repot a Catt without seeing active ...
Good info and advice from Svetlana. Especially the don't repot a Catt without seeing active new root growth part!
I am also of the opinion that it is a rot of some sort. Ca deficiency is seen as new leaf tips going black. Since the blackening is in the base, I suspect a rot. Observe and see if it is spreading and if yes use Clearys