Re: Re: CULT: diseased foliage


I was especially interested in the leaf spot disease discussion although I
seldom have it.  I didn't realize that I should remove the leaves
immediately when it did appear.  I only cleaned them up at the end of
summer with my regular fall cleanup.

 When I first became seriously interested in iris culture, I was told to
dip my rhizomes (before planting) in a permanganate of potash (POISON)
solution.  It supposedly would take care of leaf spot as well as rhizome
rot and various other diseases.  I haven't used it for  many years, but I
think it's still available through a pharmacy or farm supply store.  It was
also used to doctor ill chickens.

Mickey Corley
Bethany, OK  Zone 6/7

Message text written by INTERNET:iris-talk@egroups.com
>
<<  I am surprised to hear this - somewhere along the line, I had gotten
the
 idea that leaf spot, like soft rot, is a pandemic soil borne organism
 and is pretty much going to be around when conditions are favorable for
 it.... Not true?>>

Just passing on what The World of Irises (published by the American Iris 
Society) told me:

"If the iris planting can be freed of leaf spot for two years, there should

be no further infection unless introduced from another garden."

Page 342, Under "Fungal Leaf Spot."

I believe it. I'm ruthless about keeping my stuff clean and I have next to
no 
fungal spot and do not spray. Cut off the bad stuff when it first appears
and 
get it out of the garden. Get rid of any cultivar that repeatedly 
demonstrates a tendency to be a plague ship, and don't buy plants from
people 
who have a history of sending you things that break out in spot. Be wary of

freebies from friends who have disease, and treat any stuff coming in as if

it had spot already.

Anner, in Virginia
ChatOWhitehall@aol.com   
<

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