St. Augustine grass diseases in area 34691 - Knowledgebase Question

Holiday, Fl
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Question by tanks7
October 5, 2010
In august I treated my lawn for chinch bugs before going away for a month.September the lawn was worse.I figure disease since no signs of insects.I'm confused since all damage is in sunny areas and spreading. Know that its getting cooler with low humidity will problem stop and improve? Please advise.I'm hoping it is not SAD.How can I tell the difference between virus(SAD) and fungi causes? Thanks.

Answer from NGA
October 5, 2010
The best way to get a positive diagnosis is to take a sample of the lawn to your local cooperative extension office. Trained staff can absolutely identify the problem for you and suggest control measures. Failing that, the following websites can walk you through the diagnosis based upon the symptoms you see:

Hope this information is helpful.

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