Re: CULT: Terrachlor...was Terimycin


Dana Brown wrote:
> 
> Rick, I must have missed the start of the conversation about Sclerotium
> rolfsii(alias crown rot). Probably while I was reloading Netscape.  What
> are the symptoms?  The rot I have here does not seem to have an odor.
> Soft mushy rhizomes, dead roots, and if you tug on the foliage it pulls
> loose off the rhizome.

Dana, 

Sounds to me like crown rot,  however it usually does not become active
until warm weather, 70 degrees and above.  Here if I get it, I usually
notice it during bloom and especially during the hot summer.  It is a
ground fungus that begins eating away at the roots like an acid and then
proceeds to the rhizome.  In advanced stages you will notice the foliage
start to fall over at the base of the plant.  It becomes a gooey mess
after a while and resembles soft rot.  Stop all watering, it can't
function without moisture.  Get terrachlor.  Try using a terrachlor
drench (check label for mixture) for early stages.  If it gets out of
control, dig the plant and dip in the clorox mixture as above, then let
it dry for a few days and replant.  Be sure to dust under the rhizome
with the terrachlor as the evil fungus is still in the soil. I have
replanted back rhizomes that have been half eaten away(sometimes 3/4's)
by crown rot, dipped them and they grew fine.  I am always amazed how
little rhizome the iris needs to grow and bloom.     

Rick Tasco
Superstition Iris Gardens
Central California
Zone 8

Rick Tasco
Superstition Iris Gardens
Central California
Zone 8



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