both bermuda and rye grass grow everywhere else on the lawn but these 3 areas are always dead. I've added gypsum, fertilizer and nitrogen, then broadcast seed and it does not sprout. I water extensively as well.
A soil test may help determine if something is lacking (or too much) in the soil. Too much fertilizer can burn the grass. Are these areas in full sun? Most grasses don't do well in shade. Make sure your lawn fertilizer doesn't include an herbicide when you are spreading seed. Also, when you broadcast the seed, are you raking the areas first to remove dead grass? Watering it every day? Fungal diseases such as brown patch disease or anthracnose can cause large areas of dieback.
These articles should help:
https://www.gardeningknowhow.com/lawn-care/lgen/treating-lawn-diseases.htm
https://www.gardeningknowhow.com/lawn-care/lgen/brown-lawn-fixes.htm
https://www.gardeningknowhow.com/lawn-care/lgen/grass-fungus.htm
https://www.gardeningknowhow.com/lawn-care/lgen/fall-grass-seeding-guide.htm
https://www.gardeningknowhow.com/lawn-care/lgen/lawn-fertilizer-tips.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
opped mushrooms that upsets the dogs stomach. I live in high desert are of NV, zone 7. We water w well water every other day. The circle area I think is in a low spot of the yard, the mushrooms grow back almost overnight, I don't have pictures as we have begun to get close to freezing at night. Any thoughts?
If it is a low spot it may be getting too much water. Fungal issues usually cause brown spots. These articles should help:
https://www.gardeningknowhow.com/lawn-care/lgen/eliminate-mushrooms-in-your-lawn.htm
https://www.gardeningknowhow.com/lawn-care/lgen/fixes-for-yellow-lawns.htm
Start to get a few random patches of grass going brown and dying. At first, I thought it was just getting enough water but now I'm thinking it is something else like lawn grubs/beetles - I haven't seen any physical evidence. Or could it be some type of disease? The turf is Empire Zoysia. Any idea what it could be and how to treat it? Thanks Logan
I notice what looks like a plumbing stack. It could be possible that there is a leak, which could keep the soil wet and disease ridden. If this is the only area of grass that you are seeing dying off, then you may consider having that gray pipe looked at. Wet conditions can cause Rhizoctonia root rot to take over. I see the telltale ring of yellow with green in the center. If you are seeing this elsewhere, as well, then it may not be due to the pipe. It could be low places in the lawn collecting extra moisture. Another thing to consider will be overfertilization. Too much nitrogen will invite the disease.
I would turn towards fungicides, though it will not eliminate the issue. To get rid of it, the factors that are allowing it to flourish must be removed.
https://www.gardeningknowhow.com/lawn-care/lgen/brown-lawn-fixes.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm