I have a lawn which was hydroseeded three summers ago. It's a combination of fescue and rye. It was done over topsoil. It has been fed, watered, weeded and recently professionally thatched and aerated. During the summer months it is watered 5 minutes in the early morning. It gets lots of sun - this is the "dry side" of Washington. All our neighbors have beautiful lush green lawns, especially with all the rain we've been getting lately. Ours has huge brown spots all over. After a feeding, we grow mushrooms, but not grass. This is not a dog problem, but looks like it (would have to be a big dog). Do I have a fungus? Any ideas? HELP!