Re: Re: CULT: rot-prone irises
- To:
- Subject: Re: [iris-talk] Re: CULT: rot-prone irises
- From: L*
- Date: Sat, 10 Feb 01 16:05:54 -0000
>In my experience, just about any TB can fall victim to botrytis. It is
>insidious, as it usually takes hold while the rhizomes are still covered by
>snow, so the infection is often well advanced by the time it becomes
>visible. The usual techniques of scraping out and disposing of the rotted
>rhizome tissue and liberally dusting what remains with Comet or a similar
>household cleansing powder seems to work as well as anything. When rhizomes
>are lifted and divided, soaking them for at least twenty minutes in a
>solution that contains at least 10% bleach seems to break the chain of
>transmission.
Jeff,
Does bleach work better than any of the fungicides? I know botrytis is a
fungal organism. I did actually dig and transplant every iris in my beds
last year and gave them all a bleach solution soak at that time, so
hopefully botrytis will not raise its puffy black head again anytime soon.
You mentioned your RVP having compiled a list of erwinia-susceptible cvs
a few years ago. Do you supposed he still has such a list that I could
acquire from him? Was that Leon Robertson?
Thank you for your continuing assistance.
Laurie
zone 3b-northern MN
--------------------------
laurief@paulbunyan.net
http://www.geocities.com/Heartland/Valley/1633
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