On 4/1 we brought in 10 pallets of Palisades Zoysia sod and layed it over a period of 24 hours. We had rocky soil due to the fact that we had been in the new house a year and the existing top soil had eroded quite a bit. We brought in 45 yds of chocolate loam and had it spread around the 4500 sqft area. By the time this was spread out and therefore compacted, we ended up with between an inch and two inches of loose soil. We laid the sod and have been watering via irrigation in front, hand watering in back. For 2 weeks we did 2 sessions of 30-40 minutes, totaling about an inch per day. For the third week we have been doing about 60 minutes in one session, for about an inch per day. The sod is typically kind of squishy, but not muddy.
It looked pretty good the first 2 weeks, but the last couple days had started showing up with yellowing patches in random spots (see photos here: http://yfrog.com/bf0421001047j). Now I don't know if it's due to overwatering, underwatering, fungus, bad soil, bad sod, bugs, or what. Please help! We spent our savings on this and I can't afford to lose it! Thanks and please ask if you have any questions.