What kind of grass? Your brown spots look like mine. I'm not sure if its lack of water to those areas, fungus, or something else. My brown spots are all dead grass blades now. No hope in reviving the area. I'll just have to wait to seed the areas in the fall.

Unless you have signs of summer patch, I wouldn't worry about 'reducing the stress'. I have what I think is summer patch pretty bad and I don't think there is much point to changing your watering schedule to 'reduce the stress'. Summer patch pretty well kills the grass plant from the root up so by the time you see that you have it, that grass is toast. Light watering would only serve to baby the grass, keep the roots shallow and allow weeds to grow. Stick with the deep watering. If you see that you have summer patch, the only thing to really do it spray for it next year. There is no good curative solution for summer patch.

Hi, Thanks for replying... I am in Southern New Jersey. I fertilized with Scott's Weed and Feed (or whatever they call it) in the spring. The lawn in fescue that I planted in the spring two years ago and then heavily reseeded last fall. It came in great but is quickly dying as a result of this fungus. Last night I aerated the whole lawn. I also bought 240 lbs of cornmeal, which I read is an organic solution to this type of fungus. I didn't put it all down last night becuase it got dark out. I'm planning on finishing tonight. I've read the dollar spot fungus is caused by: 1.) Low levels of nitrogen; 2.) Dry soil?? 3.) Excessive thatch. I believe my N levels may be low becuase I fertiziled early in the season and I don't think Weed and Feed has much slow-release nitrogen in it. As for the soil moisture, I was watering 15 minutes per zone in the early morning. When I noticed the brown spots, I upped it to 20 minutes per zone. When that didn't work, I began watering in the evening too (same amount of time). I only watered in the evening for about a week before I realized I had a fungus problem and turned the sprinklers off completely about two weeks ago. I'm compltely confused becuase the problem has gotten worse both with more water and less water. Before I turned my sprinklers off, I mowed in the evening and noticed that the ground was really wet even though the sprinklers hadn't been on since the morning watering (which started really early but I have eight zones so it takes a while). Since turning off the sprinklers, the problem has continued to get worse too. This morning I have huge areas (about 10ftx8ft) compeltely covered in the white webbing shown in the picture. Anyway, my plan is to finish putting down the cornmeal tonight. Then set my sprinklers to 30-45 minutes per zone twice per week in the morning. I'm going to try to start the watering early enough so it's done before mid-day, but not too early so that the water sits pre-sunrise for too long. Any other input or suggestions. I'm really disappointed with my lawn. I've put a ton of time and a good amount of money into it and it looks like crap. In addition to this problem, I have weeds and crabgrass invading. I put down crabgrass preventer back in Feb/March, but it seems to be ineffective in certain areas of my lawn. Kevin

Thanks for the additional pix. Is the rootball hard to the touch? If so, that means it's potted in mostly peat which when totally dry, actually repels water & prevents the roots from getting any water. I don't grow this plant, but recognize possible rootball problems. If it's as I suspect, someone else will have to guide you to changing the mix. I'd be likely to just crumble the mix off w/ my fingers. Am guessing once you change the soil to whatever mix is good for them which others here may suggest (after washing & drying out the same pot) you may be able to keep the same pot.