Type of Fungis

[Shannon's Lawn Care]

Hey,
I am trying to figure out what type of fungis is occuring on this piece of property. The area is a small, about 1,900 sq ft. During early fall it starts with three good size circles, that start to brown out. It continues into late spring. I have tried heavy raking in the spring, fertilizing four-five times in a season,also appling aluminum sulfate because there tends to be a certain type of weed that grows there, re-seeding. This year I am going to try aerating, maybe throwing compost/topsoil mix. I believe it is a fungis problem but I am not positive. Any thoughts?

[swstout]

Try these

http://www.ehow.com/how_2098610_identify-lawn-fungus.html
http://www.servicemagic.com/article.show.Lawn-Fungus.15543.html
http://www.gardeningknowhow.com/lawn-care/grass-fungus.htm
http://www.onlinetips.org/lawn-fungal-growth
I had one lawn with about 4' circles on it. I mixed ordinary baking soda (1 box to 1 gallon warm water) with water and treated the area twice. It worked.
Steve

[Shannon's Lawn Care]

Thank you, I will try that.

[CHEESE2009]

It could be a necrotic ring spot, which is caused by excessive fertilization.

Depending on the size, it could be the dollar spot disease, it appears on turf that is nutritional deficient & usually if you cut the lawn shorter than the norm.

[Steve]

You should take a picture of it to show us.