Re: CULT: Leaf Rot not Spot
Sandra; I have to join with Kitty on this one. In watching the last few
years we have pick up the same scenaio you describe, what we have done is
remove the debrie and make sure the iris has room to breath, it seems once
warm air and circulation is evident the problem goes away. You will have to
trim some damage away and I think a Comet dusting would aid in drying the
infected area, thus helping the plant. I do believe if it is ignored it has
a drastic effect on the plant. Bill
Stone's Iris Garden Somewhere to the East of K Loberg's ( Across a
valley and up a hill )
----- Original Message -----
From: "Loberg" <loberg@jps.net>
To: <iris-talk@egroups.com>
Sent: Tuesday, April 04, 2000 11:27 PM
Subject: Re: [iris-talk] CULT: Leaf Rot not Spot
> >It has been unusually hot here for the last two weeks and I have just
> >notice a kind of rot that I have never seen before. So far it is only
> >effecting 2 or 3 of my TB's.
> >The leaf seems to be rotting starting about 3" up from the rhizome and
> >spreading down. It seems to effect the outer leaf (ocassionally the one
> >underneath). I don't notice any odor other than rotting leaf.
>
> Sandra... I've had a few like this this year also. I too thought it
> was a strong dose of leaf spot, and then realized that the entire leaf was
> rotting at the base upwards to about 3", like you say. There are two
> kinds of rot, one in the rhizome, and one that affects the leaves, called
> crown rot, so this may be it. Unfortunately, I didn't do anything other
> than spray for leaf spot because 1)it was still raining when I discovered
> them a month ago, and 2) I didn't know what else to do. Now we've got
warm
> weather, and the ground has dried up and I now have to water the iris.
I've
> trimmed out a lot of the rotted leaves, and some of the plants are still
> growing, and some fans rotted entirely. The books say to apply a
> systemic fungicide, but that the rot sclerotia may remain in the soil for
> years.
> Kitty Loberg
> Northern Calif. where we've skipped spring and jumped into early summer
>
>
>
>
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