Hi, I have a thor x aristo which has been growing slowly for the past few months. It came as a long stem with two basals. The two basals have since grown large and are pitchering, but the main stem is dying away.
Today, I spotted what is apparently blackening on the stem of the two basals. First, is this really troublesome blackening or is it just the stem becoming old?
This is the main stem dying. There is a brown colouration creeping up and the leaves are becoming limp:
This is the whole plant:
If the blackening is trouble, should I take cuttings or persist with fungicide? Thanks.