Zoysia grass is popular with many people in central New Jersey due to its lush, green appearance. It is often uses for golf courses, sport fields, and parks. However, as the temperatures cool down, Zoysia is one of the first grasses to go dormant.
This dormancy helps the grass survive the harsh winter, and green up again in the early spring, but causes the grass to turn a yellowish brown color.
As the October temperatures cool down, you can expect your Zoysia to enter its dormancy and brown.