Zoysia Grass Dying

Question

What can make zoysia grass turn brown in large rectangular patches, round spots (3′ diameter) and in stripes (8 inches wide). There is also irregular shaped pieces of black material that looks burnt or soot-like laying all over the yard.

Answer 1

It is likely a fungus. Here is information on a few common ones:
https://www.gardeningknowhow.com/lawn-care/lgen/grass-fungus.htm