RE: Iris disease

 

Ciao Roberto,
 
It's nice to have you too in the group, so, Welcome!
Don't worry, your plants are simply too fast growing. I assume there was a heavy feeding with nitrogen.
Yours
Filippo
 

To: iris-species@yahoogroups.com
CC: areapalustre@areapalustre.it
From: roberto.frediano@tiscali.it
Date: Wed, 27 Apr 2011 16:28:30 +0200
Subject: [iris-species] Iris disease

 
Hi to everybody,

I'm Roberto Pellegrini from Tuscany, Italy.

In this period I have a problem with some plants: I have effectuated a
fertilization but, in some Irises, the new leaves are yellowish (with clear
stripes), flabby, appear more larger than normal and tend to falling down.
These symptoms are visible on different species (I. peudacorus, I. ensata,
I. tetrasibtosa hybrids, etc.), in plants of various origin (some are new
purchase, other are plants that I grow from several years), in different
garden's positions and in seedlings also. I have used a pesticide on all
these plants for aphids prevention. For garden's works I use sterilized
scissors.
Maybe are Sclerophtora macrospora symptoms?
I'm terrified of virus and I have need of your valuable aid.
Thank you.

These are some picture.

Roberto Pellegrini

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