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Brown/Yellow spots in St Augustine Lawm

Posted by WTS1318 NC, Zone 8 (My Page) on
Sat, Oct 20, 12 at 13:34

Help! We have an otherwise beautiful St. Augustine grass lawn in Wilmingtin, NC.

Had some small patches of this yellow/brown circles this spring. Lawn/garden store advised to spray with antifungal . . . Martin's Honor Huard PPZ (contains propiconazole triazole). Seemed to help, lawn thrive in summer. Fertilized with 16-4-8 twice during summer (most recently August).

Since late September/early October, it has returned with a VENGEANCE and is spreading. I sprayed the antifungal about two weeks ago and again today. Any other thoughts ???

Follow-Up Postings:

RE: Brown/Yellow spots in St Augustine Lawm

That is clearly a fungus. How hot was it when you applies the spray? If you read the label it will give you an idea if you sprayed when it was too warm.

How often do you water and for how long? Do you know how long it takes to fill a small cat food or tuna can with your sprinklers?

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