This was our back yard in May. And this is our back yard today.. It has happened this way every year. We built in 2012 so we started with a dirt back yard. We've seeded every year, aerated the last two years, we have a lawn service come and apply fertilizer and/or pre-emergent at scheduled intervals. In the spring, it looks lush and green and thick (except for a few spots where the dogs go), then in the summer it looks horribly patchy or just downright brown. I know it's typical for lawns to go dormant in the summer heat, and we could certainly do better about watering, but our yard is by far the worst looking one on our block and I know our neighbors aren't all watering regularly, and some are clearly not tending to their lawns at all, yet they look way better than our patchy brown mess. I'm at a loss! We are also seeing a bunch of mushrooms back there now, even when it hasn't rained recently. Also not seeing that in other yards. I'm worried we have some kind of fungal issue back there.. But I had no idea something fungal could survive 90+ degree weather with very little rain and zero shade (no mature trees). Help!!!!