Root rot or wet rot can affect euphorbias if the soil remains too wet
for a long time, or if too much water is given too quickly after the
root ball has dried out completely in the rest period. Weakened plants
can easily succumb to fusarium fungus, leading to root rot. The disease
manifests itself with brown discolouration of the plant neck, spreading
to the whole plant, the inside of which turns to a soft, colourless
jelly.
The only cure for root rot is to cut off the still unaffected parts
of the plant, but generally this only works during the early stages
of the disease.
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