Here is a post from Omaha concerning a reddish discoloration of Zoysiagrass. I need some feedback from you Zoysia experts.
It is from:
Owner, Omaha Organics Lawn Care
Rob has several Zoysia lawns, most of which look fine. This one has taken on a reddish discoloration late in the season.
He uses a 4 step organic program on it. He also put down gypsum in August for a sodium problem. He topdressed it with organic matter.Sodium does not appear to be high on the soil test.
He gave me the soil tests and phosphorus in in an adequate range.
Some varieties of grass will turn red in the fall when temperatures cool, but this is the only Zoysia lawn that it is occurring one. Does anyone with Zoysia experience out there have any ideas. Let me know or contact Rob directly. firstname.lastname@example.org
Here is the reddish color on the Zoysia from a couple of weeks ago, just before dormancy.
Here is the lawn a couple of days ago, after the Zoysia became dormant.
Heavy clay soil on the lawn.