If you notice discolored arcs or large circles in your Zoysia grass, you're likely dealing with an advanced case of Zoysia Patch. This disease is most common during seasonal transitions, particularly during spring green-up and the lead-up to fall dormancy.
Several factors can contribute to Zoysia Patch, including compacted soil, excessive thatch buildup, and unseasonably warm winter temperatures.
Treatment involves professional fungicide applications combined with proper lawn maintenance practices. King GREEN applies fungicides (at an additional charge) until the spread of the disease is halted. Ideally, the disease should be treated in the fall—before it has a chance to take hold. In most cases, multiple applications are necessary.
TO SUPPORT THE RECOVERY PROCESS, YOU SHOULD:
Rake out affected areas and remove diseased thatch
Aerate in the spring
Mow at the correct height and frequency
Collect clippings until conditions improve
While preventative fungicide treatments are not considered economical, there are other steps you can take to reduce the risk of future outbreaks. These include:
Mowing properly – This is the single most important practice for managing Zoysia health
Never scalp a Zoysia lawn
Keep your mower blade sharp
Topdress your lawn to improve drainage, root development, and nutrient absorption
Keep in mind that Zoysia is a slow-growing turfgrass, so recovery will also take time. If you suspect Zoysia Patch in your lawn, please contact your King GREEN representative for help identifying and addressing the issue.