Late season potassium nitrate app & brown patch

[Ric]

Originally Posted by 44DCNF

Good point Ric. Something I hadn't considered. Wondering could it be run through a hydroseeder?

HYDRO means water and you want to shoot wet compost on top of living plants? You didn't put your thinking cap on.

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[Kiril]

Originally Posted by Duekster

But compost is not as effective as Peat on TARR. No studies on Brown Patch that I am aware.

You haven't looked hard enough. Here are a few on turfgrass disease and compost/biological mediated control.

http://archive.lib.msu.edu/tic/gcman.../1997jul60.pdf

http://www.uoguelph.ca/~plpathol/PDF...l%20(2000).pdf

http://ecommons.cornell.edu/bitstrea...20Diseases.pdf

http://www.recycledorganics.com/publ...uppression.pdf

http://cwmi.css.cornell.edu/organicf...inalreport.pdf

http://www.compost.org/English/PDF/W...M%20Tenuta.pdf

http://www.greatturfcompany.com/wp-c...ses-part-I.pdf

http://grounds-mag.com/mag/grounds_m...gical_control/

http://www.springerlink.com/content/qq42817475584674/

[Duekster]

TAMU ran studies on compost vs Peat on TARR.

[44DCNF]

Originally Posted by Ric

HYDRO means water and you want to shoot wet compost on top of living plants? You didn't put your thinking cap on.

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I was referring to peat (the original hydroseeding mulch element), not compost. And it was considered that a tackifier would not be added.

I should add that in my haste I may not have donned my thinking cap, you are correct. Or it could be that when you donned your surly cap, you may have dropped your reading and comprehension glasses.

[44DCNF]

/\ meant as a little light ribbing among friends, sir.

[Ric]

Originally Posted by 44DCNF

/\ meant as a little light ribbing among friends, sir.

No Problem on the Ribbing, I have more than enough senior movements. My thinking Cap isn't always on either. But once again you want to spray wet Peat on top of growing Plants????? Am I missing something here????

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[ArTurf]

Originally Posted by Ric

Brown Patch is a soil borne disease that has a Fall and Spring Temperature window where it is very active. It like a high pH or alkaline or sweet condition. Non Sulfate Fertilizer help promote Brown Patch because they "SWEETEN" the soil where Sulfate Fertilizers "SOUR" the soil. Potassium will Sweeten the soil while Nitrate will help Sour it. Iron also Sours so your Mix should be just on the sour side.

Sept I start with a Preventative Fungicide as a Blanket treatment. Because my soil is more Calcareous Sand than soil, I deal with a lot of Brown Patch. It is more economical for me to apply a Preventative Fungicide than to fight Brown Patch all winter long.

Sweet = pH up

Sour = pH down

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How many apps of preventative do you put down? If more than one, at what intervals?

[Trueturf]

"Soluble nitrogen fertilizer applications, greater than 1.1 pounds of actual nitrogen per 1000 sq. ft. put the turf at risk."
"Avoid excess soluble nitrogen during November-April"
Pulled this from a University of Florida Extension Agent's article.

Sounds like it shouldnt hurt you to bad.

[Ric]

Originally Posted by ArTurf

How many apps of preventative do you put down? If more than one, at what intervals?

First our Climates are totally different as are Our soil. What works for me might not work for you. Or because I have a Year round Growing Season and soil My treatments might be a Over Kill for you.

I do between 6 and 8 treatments on Turf a year depending on the customer. Sept I will start my preventative Fungicide because it is Traditionally Sept 15th that our nights turn to the Lower 70's. (But Not this year) Remember Brown Patch is also Heat Sensitive. While Brown Patch is present in the summer, The high canopy Temperature of Summer suppress Brown Patch. BTW Sometimes called Winter Patch and now it is called Large Patch.

To me It is more important to study the Life cycles of Pests than it is to look at chemicals. By knowing your Climate and major known pests and when they express themselves, You have the upper hand. Chemicals Come and Go, but the Life Cycles stay the same. It is the Diagnosis of the problem that is the Problem in most cases. Once your Diagnosis is correct there is Standard Protocol for treating it. I not use IPM but I do use BMP (Best Management Practices) The big difference is I treat more Preventively than IPM or I pay Materials.

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