hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

RE: CULT: Leaf Spot

The cropping is exactly what I did this past year.  I went through one
garden and took out the leaves, individuals, that had spot, right down to
the rhizome and left the ones that looked healthy.  Hurmph! Within a week
the healthy looking leaves were affected so I cut them all down to the
rhizome and they came back just fine.

I am glad someone else had good luck with my solution this past summer.
Char, New Berlin, WI

-----Original Message-----
From: owner-iris@hort.net [mailto:owner-iris@hort.net] On Behalf Of
Sent: Wednesday, January 05, 2005 1:05 PM
To: iris@hort.net
Subject: [iris] CULT: Leaf Spot

In a message dated 1/5/05 12:41:41 PM Eastern Standard Time, 
neilm@charter.net writes:

<< Injuries from sharp, small hail are especially bad about providing entry 
points for the disease. >>

Some years ago there was a discussion on this list about leaf spot and--if 
memory serves me well-- one member--I thought it was Edmondas-- maintained
our understanding of all this was faulty, that the pathogen was, in fact, in

the Iris leaves. 

I cannot find the posts on this in the Archives, but I remember it every
something new breaks out in spot in my border, because, you see, for
reason my garden typically does not support much spot. 

One of my rhizome sources, however, is obviously fighting an ongoing  battle

with it. New purchases from them--bearded irises--always arrive looking
good, already bleached and without that "foliage-cut-*way*-too-far-back"
that makes one so suspicious of disease at the other end, but, sure enough, 
before long out they break in spot. Nothing else in the border will have it,

only the new transplants. Happens more times than not.

So I cut off all the foliage, just whack it right back to the rhizome. When 
new leaves grow back out they are usually fine and stay fine. In a couple of

instances I've had to crop them a second time. 

So I ponder all this from time to time.


Anner Whitehead
Richmond VA USA
USDA Zone 7

To sign-off this list, send email to majordomo@hort.net with the

To sign-off this list, send email to majordomo@hort.net with the

Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement