Re: brown leaves
- Subject: Re: [sibrob] brown leaves
- From: Ken Walkup k*@cornell.edu
- Date: Fri, 11 Jul 2003 08:20:19 -0400
John et al,
If you had the problems I have had with fungus, you would not be
so cavalier about it. It seems as though I'm "lucky" enough to be
experiencing something unusual. I would not wish these problems on
anybody, and if any of you DO think you might have a fungus-infected plant
I urge you to take steps right away. I don't like using fungicides but I
don't have another choice right now, besides giving up on irises.
As for "scorch": nothing much came out of Currier's attempt to
find out what it really is. As I recall it, his conclusion was that scorch
is not a single disease, it is the result of anything that causes the roots
to die, resulting in brown foliage.
Ken Walkup
At 10:36 PM 7/9/2003 -0400, you wrote:
>John Coble, Michigan, Zone 5
>
>Margaret,
>
>Yes, the center leaf turning brown and pulling out does sound like borer (and
>sometimes other chewing worms/grubs). Center leaf turning brown at the tip
>first and not easily pulled out of the fan sounds like the first symptoms of
>"scorch". And Anna Mae is correct in that when you notice the older, outer
>leaves turning brown, it is usually a fungus and usually not the end of
>the world's
>vegetative life as Ken Walkup would have the iris world believe. (unless he
>convinces enough people to throw a cloud of fungicide around the
>neighborhood).
>
>The Originator of Sprinkles
>
>
>To post to Sibrob: sibrob@yahoogroups.com
>
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