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Fungus (brown patch) in St Aug

Posted on 10/23/20 at 6:50 am
Posted by NOLAGT
Over there
Member since Dec 2012
13494 posts
Posted on 10/23/20 at 6:50 am
Every year I get brown patch in my st aug lawn. What can I do to prevent it? Starts out as a dinner plate and before I know it it’s a giant swath of my yard. I want to put something down before it gets to that point if possible.

TIA
Posted by ronk
Member since Jan 2015
6151 posts
Posted on 10/23/20 at 7:36 am to
Azoxystrobin.
Posted by FlyinTiger93
Member since May 2010
3568 posts
Posted on 10/23/20 at 8:56 am to
Water less often. Don't worry about it this year. The first big front is coming next week, and the bugs will go dormant.
Posted by jimbeam
University of LSU
Member since Oct 2011
75703 posts
Posted on 10/23/20 at 9:00 am to
Peat Moss
Posted by baldona
Florida
Member since Feb 2016
20362 posts
Posted on 10/23/20 at 10:07 am to
quote:

Water less often


I know Brown Patch is common in the late fall and I wonder if this is why? Because people keep their sprinklers on their summer schedule when once or maybe twice a week is plenty? Not saying that's what happened to Op. I've watered once in the past 6 weeks or so.
Posted by Perrydawg
Middle Ga Area
Member since Jan 2014
4769 posts
Posted on 10/23/20 at 10:39 am to
The company I have to spray my yard pointed it out to me last week. Said it is common in centipede this time of the year but the 9 inches of rain we got here in Georgia from Hurricane Laura probably caused mine. I had them come and spray the for the brown patch last week.
Posted by NOLAGT
Over there
Member since Dec 2012
13494 posts
Posted on 10/23/20 at 11:42 am to
I have left it on in the past by mistake. It’s been off since about Delta this time and Olán to keep it off.

I have seen peat moss mentioned before, how does one spread that evenly?
Posted by jimbeam
University of LSU
Member since Oct 2011
75703 posts
Posted on 10/23/20 at 12:11 pm to
They have roller spreaders but I just cut open the bag, dragged it around and somewhat spread it, then raked it in
Posted by NOLAGT
Over there
Member since Dec 2012
13494 posts
Posted on 10/24/20 at 10:06 am to
I’d like to avoid having to rake it in as well. It’s about 10k sqft of lawn. That roller looks interesting. Looks like I can rent one from HD. Those work well?

This post was edited on 10/24/20 at 10:07 am
Posted by ronk
Member since Jan 2015
6151 posts
Posted on 10/24/20 at 5:24 pm to
The roller is hard to work with. Three reasons why: it is hard to get the peat moss in the hole, 1/4 of the bundle of peat moss doesn't come out when you roll it because it is too big, and the door doesn't stay shut.

The reason why peat moss works for fungus is because it has a pH of 4.4 and that is too acidic for patch fungi to grow in. I do prefer to save peat moss for take all patch because of how difficult that fungus is to deal with. Brown patch is a minor fungus and azoxystrobin or propiconizole will control it.
Posted by tigerlife36
Member since Sep 2016
745 posts
Posted on 10/24/20 at 6:34 pm to
Ronk what about zoysia, I have something that doesn't look like large patch or dollar spot. Maybe rust? What's best for that?
Posted by ronk
Member since Jan 2015
6151 posts
Posted on 10/24/20 at 10:26 pm to
Zoysia is a fantastic pain in the arse. Unbeatable when it’s good. Unbelievably frustrating the rest of the time. Do you have pics of the issue?
Posted by Jambalaya Sauce
Member since Sep 2017
271 posts
Posted on 10/25/20 at 1:59 pm to
The ole buffalo turf is a tricky devil. In the fall when you get a lot of rain and not as much sun, the water can sit longer on the grass. That will cause the fungus that manifests as yellow spot. If you are still watering at this point in the season, you’ll need to stop. If it’s happening every year you may need to work on your drainage to get any excess water off faster. I’ve always had at Augustine and always will, in my opinion, even being a moderate maintenance grass, it’s well worth it. Not only does it form a dense carpet that feels good under foot, but every time I mow it, the smell takes me back to 1995, where the Tigers upset Auburn 12-6, and the team wore white jerseys at home for the first time in over a decade.
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