I don't have root rot problems so maybe MYKE is good.
I usually water seedlings once with dilute Epsom salts.
It is supposed to deter the carrot fly also.
But then some say that you have to watch, and not "over salt" the soil?
Another concern----if the soil has microbes in it----then is it already sterilized?
I usually pour dilute hydrogen peroxide through the trays of soil, when I use ordinary potting soil.
I think the hydrogen peroxide would kill off the good microbes too?
