CULT: Damping off of Seedlings

From: HIPSource@aol.com

Greetings,

I've thought of asking this before and passed on it,  but now the thought 
occurrs to me again and since there are, I am sure, many of us with little 
pots of iris seeds on the verge of germination, I think I'll inquire as to 
what is known.

Somewhere very early on in my iris education, before I joined AIS and was 
just a lone crank trying to educate myself, I read in some iris book, 
probably none too obscure, that iris seedlings as such were not much prone to 
dampoff, understood as a fungus which attacks seedlings at the soil line 
causing them to rot there and keel over. Dampoff is a real problem with other 
plant seedlings, especially when sown inside since it profits from conditions 
of poor ventilation and overhumidity, and it can spread through a pot or flat 
in a matter of days taking your dreams with it. I figured that maybe we did 
not see much dampoff with irises because they were monocots or something, and 
I've never had occasion to doubt the words I read since I've never had any 
dampoff of an iris seedling. Most of what I have done have been beardless, 
but I've done others as well, and I've done a lot inside. Occassionally I've 
had one or two rot when the soil was too wet, for it takes experience to know 
how much water they want, especially after germination, but I've never lost 
any iris seedlings to what was clearly dampoff. 

What I would like to know is this. In the experience of the list, how 
prevalent is dampoff in iris seedlings, and are some kinds of irises more 
prone than others?

Anner Whitehead 
HIPSource@aol.com     

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