That is not a turf disease. Those are mushrooms from normal soil fungi. It's the rain that has caused these fungi to bloom. They will go away if this rain ever stops. I've gotten 14.4 inches in my gauge in the past 2 weeks in Bandera. I got a partial mow in between storms last week. Besides wet grass the soil is too wet to walk on.

Normal fungal problems in St Augustine can be cured with corn meal. Have you tried that?

I'm not usually in favor of catching grass clippings but sometimes it's necessary to preven thatch under St Augustine.

Good to know it's not harmful!

I did try the cornmeal, dchall. I applied it about two weeks ago. It was right before the monsoon hit. I wondering with so much rain if I need to re-apply though. A good bit of my yard has a drainage easement that had a river running through it.

I have what looks like the same tiny little mushrooms growing in my healthy Floratam St. Augustine grass.

Mushrooms coming up everywhere, hereabouts. Not sure what the "battle" is about. It's not a problem, unless you curiously find the tiny caps offensive. Even if you knock them over, the spores are always going to be there. They are particularly non-harmful, and will go away when it dries out. BTW, it's a myth that cornmeal is an effective fungicide. As with mushrooms, garden myths abound.

http://gardenprofessors.com/cornmeal-myth-busted/

In your case rose,I believe they call them angel rings. :)

I see the grass fungus cleared up, the St Augustine looks pretty healthy now.

Dan, you know hot to hit a nerve. I'm going into soapbox mode, so if you've already read my reaction, you can skip this. Cornmeal is only a myth in the eyes of that nut in Oregon and the organiphobes at TAMU. I should keep a file of those posts on various forums who thank me for helping them. It has worked for me every year since 2002. I firmly believe that TAMU does not want people to believe it works. They flat refuse to give it a try. How can it work for so many of us and not work at their school?

Having said that, I have plenty of reports of it not working, too. Looking at those more closely, they seem to come from people with cool season grasses like KBG and fescue. I have stopped suggesting corn meal for northern tier lawns and stick strictly to St Augustine. If you have the St Augustine fungal spot disease that looks like this...

For those who see this fungus in Floratam, the Floratam will live through having the disease and not die out. That is Floratam in the picture. Other varieties are not so hardy and will look brown and dead. But if you want to get rid of the spots in Floratam, then you need the corn meal.

That's the point! Where are their research references? There are no research references because they refuse to do the research. They have no proof it doesn't work yet they insist it doesn't work. If you're an Aggie, take it up with your school...before you make your donations.

"They have no proof it doesn't work." Sez you, not them. It doesn't make a lot of sense for scientists to spout denials about things that they have no research insight into. It IS true that this Dirt Doctor, who preaches corn meal fungicides, is a landscape contractor who sells the stuff. Myths make money.

Here's Dr. Jerry Parsons (TAMU): http://www.plantanswers.com/brown_spots.htm .

He believes the best use of corn meal is for corn bread. Yum!

Corn meal feeds lot of stuff, including fungal growth. In fact, when chemical fungicides are tested for efficacy, the test plots are seeded with a mixture of fungal spores and corn meal for it to grow on.

That being said, corn meal is an organic and, as a seed product, has a bit of nitrogen. So grass will grow pretty well when you throw corn meal on it. Expensive fertilizer.

I am not aware that commercial agriculture or golf courses throw corn meal around to kill fungus.

So, dchall, in your opinion should I re-apply the corn meal in light of all the rain or just wait and see?

I've tried the chemical option to no avail. At this point, I feel as though I have nothing to lose. The corn meal was about $13 a bag. Two bags are enough for my whole lawn. If it works, I'll be ecstatic, if not, I'm not out much.

I wish they would throw all the corn meal on grass instead of in gas. Ethanol is killing the fuel systems on my vintage machines.

Bressler, I don't see a problem worth putting corn meal on. As Dan mentioned, corn meal is also an organic fertilizer, so there will be some greening effect starting any day now. But as for the little mushrooms, just let the soil dry out and they will go away. After these rains your lawn should not need more water for 2 weeks or more.

Dan, why doesn't Dr Parsons trot out any, ANY, research that shows corn meal doesn't work? Perhaps this could get put to bed. This has been going on for 25 years since the first post on the TAMU-Stephenville website. The words on the website from 1995 through about 2010 said that ordinary whole ground corn meal was as effective as crop rotation in fields of peanuts. The article was a comparison of various fungicides in use in Texas. The burgeoning organic community locked onto that article and started trying it. After all it came from TAMU, so why not. Somehow Dr Parsons has turned the article inside out to say that crop rotation is the preferred method, but try telling that to peanut farmers. They would much rather grow peanuts year after year rather than alternating peanuts and flowers. Dr Parsons is so dismissive about it that I have to think nobody has paid TAMU to do the research and possibly that someone has paid TAMU to NOT do the research.

Do you have St Aug and have you tried it?