Chuck,
Thanks for the input. We may try to find some corn meal from a local mill.
Jim Nichols
Tullahoma, TN USA
----- Original Message -----
From: "Chuck Norcutt" <chucknorcutt@xxxxxxxxxxxxxxxx>
To: "Olympus Camera Discussion" <olympus@xxxxxxxxxxxxxxxxx>
Sent: Sunday, August 16, 2009 1:57 PM
Subject: Re: [OM] IMG: Information Needed on Cause of Lawn Circle
> Sounds like maybe "fairy ring fungus".
> <http://en.allexperts.com/q/Lawns-725/Ring-dead-grass.htm>
> That link gives the treatment as iron sulfate. But this link
> <http://turfgrass.com/ubb/Forum13/HTML/000041.html>
> gives an interesting treatment using ordinary corn meal. It says
> -----------------------------------------------------------------------
> In case anyone missed the answer to this on another message, I'll repeat
> it here.
>
> Of course fairy rings are caused by fungus, hence the mushroom circles.
> Sometimes the mushrooms don't grow but the grass will die in a perfect
> circle. Sometimes you will see lots of circles ranging from 6 inches in
> diameter to 50 feet in diameter.
>
> The cure for all (yes, all!) fungus disease in turf is whole ground corn
> meal. This is the same corn meal found at the grocery store. I get mine
> at the feed store in a brown bag labeled, "feed." For $5-$6 you can get
> 50 pounds at the feed store. The application rate for prevention and
> fertilization (it is also a great organic fertilizer) is 10 pounds per
> 1,000 square feet ($0.0011 per square foot). The application rate for
> existing fungal disease is 20 pounds per 1,000 square feet ($0.0022 per
> square foot). Don't let the feed store folks get you confused with corn
> gluten meal. They are two different products. You want corn meal, chops,
> or any whole corn kernel that is ground up. If you try whole corn seeds
> like some animal feed, you will end up with a field of corn. It must be
> ground.
>
> The Texas A&M University at Stephenville has found that ground corn meal
> works like a fungicide because it attracts a member of the Trichoderma
> (try-ko-DER-mah) fungus family. Trichoderma acts like a disease to the
> disease-causing fungus and kills it in about 3 weeks. If I remember
> right, the Trichoderma attacks the cell walls of the other fungus.
>
> In peanut fields, corn meal works as well as crop rotation for
> eradication of many different fungi diseases. This means that peanut
> farmers no longer need to spray fungicides nor do they need to rotate
> their peanut fields out of the prime cash crop.
>
> The same fungi that attack peanuts also attack turf
> ------------------------------------------------------------------
>
> Chuck Norcutt
>
>
>
> Jim Nichols wrote:
>> I know there are many knowledgable people on these two lists. I am
>> looking for a hint on the cause of a circle of dead grass that is very
>> well defined on my lawn and extends, faintly, into the adjoining lawn.
>>
>> I recall that a cherry tree once existed in this general area in the
>> neighboring lawn. I had a maple in my yard that was damaged by a wind
>> storm and removed. However, neither of these was near the center of the
>> circle. I have heard that maple roots can cause problems in grass, but
>> no previously-existing root circle matches what I now observe.
>>
>> Anyone got a suggestion?
>>
>> http://gallery.leica-users.org/v/OldNick/Lawn+Circle.jpg.html
>>
>> Jim Nichols
>> Tullahoma, TN USA
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