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nafex - Re: [NAFEX] lime sulfur

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  • From: "MARIE ASHTON" <bwoodtx@verizon.net>
  • To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] lime sulfur
  • Date: Wed, 05 Apr 2006 15:39:50 -0500

Yes, the fungus sounds like Mushroom Root Rot and it will kill a tree. It is also known as Oak Root Rot. It will produce Mushrooms on the tree trunk in the latter stage. There is a lot of information on the web about Mushroom Root Rot. I do not know any cure. The only recommendation is to remove the tree and either do not replant for 3 years or clean the hole out past the root line and put in new dirt. This is a problem I had on some new land I put trees on. It is caused by decaying wood. It will usually die out in about 3 years if it does not have anything to feed on.
Richard Ashton
Oak Creek Orchard
www.oakcreekorchard.com
bwoodtx@verizon.net

----- Original Message ----- From: "tanis grif" <tanisgrif@yahoo.com>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Wednesday, April 05, 2006 3:25 PM
Subject: Re: [NAFEX] lime sulfur


I was trying to recall the name of a fungus which indeed does do both the infecting
and the fruiting. Does armillaria sound right?


--- Stephen Sadler <> wrote:

I agree that a sulfured paint won't do the trick, as the problem is
systemic. How old is the tree? Are mushrooms growing from the ground near
the tree (from the roots)?

The type of saprophytic fungus liable to fruit (produce mushrooms) is not
the type that would be likely to be doing the primary damage to the tree.
First the wood dies, then the dead wood becomes able to take in moisture,
then the fungus takes hold. There are likely other processes at work.
Systemic fungus travels through the living tissues of the tree, and may not
affect the fungus that's producing those mushrooms.

People often think that such fungi hasten the demise of their hosts, but
others are certain that the tree would decline at the same rate without the
fungi; the dead wood just wouldn't decompose as fast.

Try a spray fungicide like Serenade, which infects the three with a
fungicidal microorganism. Follow the appropriate cultural treatments for
the variety and your location. Introduce fertile compost to the broad area
around the tree (staying a few inches away from the trunk).


Stephen Sadler, Ph.D.



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