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  • From: Thomas Kumpf <tjkumpf AT yahoo.com>
  • To: "market-farming AT lists.ibiblio.org" <market-farming AT lists.ibiblio.org>
  • Subject: Re: [Market-farming] Market-farming Digest, Vol 133, Issue 13
  • Date: Thu, 27 Feb 2014 23:23:52 -0800 (PST)


Root die off in seedlings

Rhizoctonia.....google it for images, if your roots are stunted and brown, that's probably it. Bad worm castings/too cold maybe


On Thursday, February 27, 2014 3:35 PM, "market-farming-request AT lists.ibiblio.org" <market-farming-request AT lists.ibiblio.org> wrote:
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Today's Topics:

  1. Root die off in seedlings (Marlin Burkholder)
  2. Re: Root die off in seedlings (Wiediger, Alison)


----------------------------------------------------------------------

Message: 1
Date: Thu, 27 Feb 2014 09:53:33 -0500
From: Marlin Burkholder <burkholders AT glenecofarm.com>
Subject: [Market-farming] Root die off in seedlings
To: Market Farming <market-farming AT lists.ibiblio.org>
Message-ID: <CF34BB9D.8AEA%burkholders AT glenecofarm.com>
Content-Type: text/plain; charset="iso-8859-1"


What causes seedlings to germinate satisfactorily in ordinary general
purpose potting mix, grow to about one inch and gradually turn yellow and
stop growing.  Upon checking the plants  a week or two later I find little
or no roots.  I fertilized with a modest amount of Plant Tone mixed into the
mix when I hydrated it.  I bottom water and do not think I am watering
excessively.  This has happened intermittently other years when I mixed worm
castings into the mix or used already prepared organic mixes which didn?t
require initial fertilization.  I would think that after 25 years of plant
starting experience I would have stopped making the mistakes that cause
this!




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Message: 2
Date: Thu, 27 Feb 2014 15:08:51 +0000
From: "Wiediger, Alison" <alison.wiediger AT hart.kyschools.us>
Subject: Re: [Market-farming] Root die off in seedlings
To: Market Farming <market-farming AT lists.ibiblio.org>
Message-ID:
    <41727d1ad76e4080940f57d2d50d841d AT CO1PR02MB176.namprd02.prod.outlook.com" href="mailto:41727d1ad76e4080940f57d2d50d841d AT CO1PR02MB176.namprd02.prod.outlook.com">41727d1ad76e4080940f57d2d50d841d AT CO1PR02MB176.namprd02.prod.outlook.com>
   
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Marlin,

When this has happened to us, it is typically fungus gnat larvae eating the roots.  The fungus gnats are very small, black flying insects that lay eggs in the media.  IF it is fungus gnats, you can usually see the larvae, may need a magnifying glass.  They are transparent/white with a black head and usually near the roots.  Dig up a yellowing plant and look closely.  We use yellow sticky traps as indicator for the adults.  Gnatrol, a Bt product, as a soil drench will help.

Alison Wiediger, Au Naturel Farm

From: market-farming-bounces AT lists.ibiblio.org [mailto:market-farming-bounces AT lists.ibiblio.org] On Behalf Of Marlin Burkholder
Sent: Thursday, February 27, 2014 8:54 AM
To: Market Farming
Subject: [Market-farming] Root die off in seedlings


What causes seedlings to germinate satisfactorily in ordinary general purpose potting mix, grow to about one inch and gradually turn yellow and stop growing.  Upon checking the plants  a week or two later I find little or no roots.  I fertilized with a modest amount of Plant Tone mixed into the mix when I hydrated it.  I bottom water and do not think I am watering excessively.  This has happened intermittently other years when I mixed worm castings into the mix or used already prepared organic mixes which didn't require initial fertilization.  I would think that after 25 years of plant starting experience I would have stopped making the mistakes that cause this!


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End of Market-farming Digest, Vol 133, Issue 13
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  • Re: [Market-farming] Market-farming Digest, Vol 133, Issue 13, Thomas Kumpf, 02/28/2014

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