Neck rot affects onions from the allium family.
Neck rot (Botrytis aclada or Botrytis allii ). This fungus affects onions from the gar
After infestation by neck rot, recovery is no longer possible. Do not throw the infested onions on the compost pile but with kerbside garden / food waste disposed of by the municipality.
Dry onions quickly after harvest, preventing any fungus from growing.