Quote:
Originally Posted by Olafhenny
The programme researched fungal diseases in three banana species (Gold
Finger, Kandarian, and Manzano) grown in Georgia, but makes no reference to the
causes of the diseases. Significant is, that in order to cause healthy plants to
become diseased, they inoculated them with the previously isolated fungus,
They did not immerse them in water to achieve that. Accordingly this is no
evidence, that the fungus was caused by excess watering. It certainly does not
contradict my claim, that pouring lots of water into pots with drain holes at the
bottom, containing plants with green leaves, cannot cause root rot.
But thanks, Tony, at least there was some rot in banana roots involved in that
research abstract. 
Olaf
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The way I understand it is,of course I'm not an engineer,is the fungus is pretty much everywhere.To much water,lack of oxygen, weakens the plant allowing the root rot to take hold. Even a fish will die in oxygen depleted water.