Re: [compost_tea] Re: killer fungi !

From: Steve Bridges (kimas@texasgrown.com)
Date: Tue Mar 04 2003 - 09:26:50 EST


Here in Central Texas we use agriculture feed grade cornmeal to control th=
e fungal problem Rhizoctonia (Brown Patch) in St. Augustine grass. It appar=
ently works in that it feeds the Trichoderma (sp.?), which attacks and kill=
s the Rhizoctonia. It is applied at 20 lbs./1000 sq.ft. and is very effecti=
ve. It is also 10% nitrogen.
Steve Bridges
Kimas Tejas Nursery
  ----- Original Message -----
  From: Tom Jaszewski
  To: compost_tea@yahoogroups.com
  Sent: Monday, March 03, 2003 9:48 PM
  Subject: RE: [compost_tea] Re: killer fungi !


  I have used Bio-Trek 22G (I think this was isolated at Cornell?) which co=
ntains a strain of the beneficial soil fungus, Trichoderma
  harzianum, prior to our CT program. IMHO CT and its diversity have been f=
ar more effective even in a "not so sustainable" methodology.

  It seems to me we should be focusing on diversity rather than trying to i=
solate specific antagonists. That's what biological scientists have been fo=
cusing so hard on, how they can isolate, grow, and maximize profits. They'r=
e missing the paradigm.

   

  I remember some years ago when we had a huge outbreak of root knot nemato=
des in a multi million-dollar palm population. I read In "Common Sense Pest=
 Control" that an isolate had been found in tomato roots that controlled th=
e beasties. I called the research project in New South Wales. Yes the fungi=
 existed but no scientist had yet figured out how to produce it. As for me =
I'll leave the monocultures to the scientists and work on natures diversity=
.

   

   

  Tom Jaszewski

  www.livesoil.com

  702-595-7012

   

  -----Original Message-----
  From: laura_s@vaxxine.com [mailto:laura_s@vaxxine.com]
  Sent: Monday, March 03, 2003 6:39 PM
  To: compost_tea@yahoogroups.com
  Subject: [compost_tea] Re: killer fungi !

   


  Trichoderma species are strongly antagonistic to other fungi. The exact
  nature of this relationship is still not clear, but it appears that they
  kill other fungi with a toxin and then consume them using a combination o=
f
  lytic enzymes. This suggests they are actually microbial predators.

  .




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