10/20/2026
Large patch: the new name for brown patch
Tan rings in the lawn this time of year usually mean one thing: large patch. (Yes, the same thing many of us grew up calling brown patch.)
Large patch is a fungus that hits St. Augustine and zoysia when North Texas nights turn mild and grass stays wet overnight. It looks dramatic, but it’s manageable.
What helps most:
- Water in the early morning so the grass dries before night
- Ease off watering as it cools down
- Hold off on heavy fall fertilizer
- Don’t mow through wet patches
On lawns we care for, our technicians watch for large patch every visit. If they find it, we treat it regardless of your plan and send photos so you know exactly what we saw.
Not sure what you’re looking at? Call or text a photo to 972-495-6990.